How many grams are in 3.4 moles of Lead (IV) Sulfate (Pb(SO4)2)? ) Molar mass: 303.26 g/mol 131.0840​

Answers

Answer 1

Answer:

1031.084g

Explanation:

n=m/M

m=n(M)

m = (3.4mol)(303.26g/mol)

1031.084g

Hope that helps

Answer 2

Answer:

1031.08

Explanation:

You start with 3.4 moles and you know that 6.022 x 10 ^ 23 = 1 mole( Avogadro's Number), so you just multiply those 2 numbers and the moles will cancel leaving you with grams of Lead Sulfate.


Related Questions

If a number has the units g/L then its
A) a number we are not going to use at all.
B) an imaginary unit that we are not going to use.
C) creating a relationship between mass and volume
D) a relationship between volume and distance.

Answers

Answer:

C) creating a relationship between mass and volume

g/L

g or gram is mass

L or Litres is for volume

The last layer in layered design is _____________. Object Process None of the options Atoms Sub process

Answers

The last layer in the layered design is system layer so none of the above is the correct option.

Robotic Process Automation is a software technology that make use of some programs of computer to copy or mimic the behaviors of human when it has access with them. They been use effectively and ensure the work is perfectly done.

There are layers in the Robotic process automation but the last layer is System layer.

They can handle high volume of tasks.

The lowermost layer is associated with individual screen interactions. The lowermost layer in the layered design of Robotic process automation is the component layer or system layer . The Robotic Process Automation and this form technology is in robots creation.

Therefore, The last layer in layered design Is System layer so none of the above is the correct option.

Learn more about Robotic process automation from the link below.

https://brainly.com/question/41671370

The most recent model of an atom is the_____.

Points: 67

Answers

Answer:

answer is electron cloud model

What is the frequency of 14000 X ray photons having an energy of 5.27*10-5 J/Hz

Answers

The frequency of the X - ray is [tex]7.95 \times 10^{28} \ Hz[/tex].

The given parameters:

Energy of the X-ray, E = 5.27 x 10⁻⁵ J

The frequency of the wave is calculated as follows;

[tex]E = hf\\\\f = \frac{E}{h} \\\\[/tex]

where;

h is Planck's constant = 6.626 x 10⁻³⁴ J/Hz

Substitute the given parameters;

[tex]f = \frac{E}{h} \\\\f = \frac{5.27 \times 10^{-5} }{6.626 \times 10^{-34}} \\\\f = 7.95 \times 10^{28} \ Hz[/tex]

Thus, the frequency of the X - ray is [tex]7.95 \times 10^{28} \ Hz[/tex].

Learn more about frequency of radiation here: https://brainly.com/question/13400312

fe3(so4)3->fe(oh)3->fe2o3->fe->feso4->fecl2

Answers

Answer: Id answer it but i think your copy and paste got corrupted!

Explanation:

Why can't percent yield be greater than one hundred percent?

Answers

Answer:

Percent yield is the maximum amount of product that can be formed in a reaction. Matter cannot be created or destroyed according to the law of conservation of mass, so you cant have over 100%.

Explanation:

mass is the gravitational pull on the earth
-tru
-fals
plz help

Answers

It is TRUE that mass is indeed the gravitational force that pulls on earth

Answer:

I believe the answer is false

Explanation:

Earth's gravity comes from all of its mass. All the mass makes a combined gravitational pull on all the mass in an object. If you were on a planet with less mass than Earth, you would weigh less than you do here. Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. Mass is not the gravitational pull on the earth.

what type of weather does a warm front cause and why

Answers

Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms.

Hope this helps!
Brainliest is much appreciated!

Help me with my Science, Part 1 and 2 please this has to be done by tomorrow

Answers

Answer:

Part 1: Condensation is when - a

Condensation happens when- water vapour suddenly freezes

Part 2: Water, condenses, vapour, cold, droplets, Condensation

Part 1, Question One: A., Vapor/gas turns into a liquid
Part 1, Question Two: A., Water vapor suddenly freezes

Part 2: Condensation occurs when water is evaporated and condensed into water droplets. The vapor from the evaporation collects on a cold surface. This can be seen when a cold soft drink has water droplets on the can. The process of the vapors forming these water droplets is called condensation.

What is the chemical composition of dry ice?

Answers

Answer:

Dry ice is the solid form of carbon dioxide (CO 2), a molecule consisting of a single carbon atom bonded to two oxygen atoms. Dry ice is colorless, odorless, and non-flammable, and can lower the pH of a solution when dissolved in water, forming carbonic acid (H 2 CO 3).

Explanation: i asked my teacher and this was her response.

Part 1: Name the type of chemical reaction that occurs when magnesium chloride
solution (MgCl2) reacts with sodium carbonate solution (Na2CO3).
Part 2: Explain why aluminum (AI) would react with copper chloride (CuCl2) but not with
magnesium chloride (MgCl2).

Answers

Mg is ahead of Al in the electrochemical series and more reactive than Al hence Al does not react with MgCl2.

A chemical reaction is said to have occurred when new substances are formed. The reaction between magnesium chloride  solution and sodium carbonate solution is a double decomposition reaction since the cations exchange anion partners in the product;

MgCl2(aq) + Na2CO3(aq) ------> MgCO3(s) + 2NaCl(aq)

We must note that a single replacement reaction depends on the relative positions of metals in the electrochemical series. Al can react with CuCl2 because Al is more reactive than copper and ahead of Cu in the electrochemical series. On the other hand, Mg is ahead of Al in the electrochemical series and more reactive than Al hence Al does not react with MgCl2.

Lear more about electrochemical series: https://brainly.com/question/25749323

PLEASE HELP CHEMISTRY

What is the hydronium ion concentration of a solution with a POH of 6.90?
O 6.29 x 10-7 M
6.53 x 10-7 M.
O 7.18 x 10-8 M
O 7.94 x 10-8 M

Answers

Answer:

O 7.94 x 10-8 M

Explanation:

Did the test

The hydronium ion concentration of a solution with a pOH of 6.90 is 7.94 × 10⁻⁸ M.

What is the relation between pH & pOH?

Relation between the pH and pOH will be represented by the below equation as:

pH + pOH = 14

Given that pOH = 6.90

So, pH = 14 - 6.90 = 7.1

Also we know that, pH = -log[H⁺]

[H⁺] = [tex]10^{-pH}[/tex]

[H⁺] = [tex]10^{-7.1}[/tex]M

[H⁺] = 7.94 × 10⁻⁸ M

Hence the concentration of hydronium ion is [tex]10^{-7.1}[/tex] M.

To know more about pH & pOH, visit the below link:

https://brainly.com/question/17144456

#SPJ2

A compound contains 40%carbon, 6.7%hydrogen, and 56.3%oxygen
calculate the molecular formula of the compound, if it’s vapour density is 90. Note that molecular
mass=2 x vapeur density

Answers

180 might be the answer man

which statement describes how vapor pressure occurs? (1 point)

a) Some molecules of a substance have high enough kinetic energy to vaporize. These molecules exert
pressure on the substance.

b) Some molecules of a substance have low enough kinetic energy to melt. These molecules exert pressure on the substance

c) Some molecules of a substance have low enough kinetic energy to vaporize. These molecules exert
pressure on the substance.

d) Some molecules of a substance have high enough kinetic energy to melt. These molecules exert pressure on the substance

Answers

Some molecules in a substance have a high kinetic energy hence they are able to convert into vapor. These molecules exert pressure on the liquid surface.

We know that the molecules that compose matter are in constant random motion. The kinetic energy of all the molecules in the liquid are not the same. The molecules at the surface of the liquid posses more kinetic energy than the molecules below.

Some molecules of a substance have high enough kinetic energy to vaporize. These molecules exert  pressure on the substance.

Learn more: https://brainly.com/question/25273232

Answer:

Some molecules of a substance have high enough kinetic energy to vaporize. These molecules exert pressure on the substance.

Explanation:

Which element has a greater Ist ionization energy, Phosphorus or Fluorine?

Answers

Answer:

phosphorus

Explanation:

i believe it’s fluorine (?)

¿Cómo pueden los padres pasar a sus
hijos rasgos como el color de ojos?

Answers

Answer:

Los padres transmiten rasgos o características, como el color de ojos y el tipo de sangre, a sus hijos a través de sus genes. Algunas condiciones de salud y enfermedades también pueden transmitirse genéticamente. A veces, en

How many moles of AgNO3 must react to form 0. 854 mol Ag? mol AgNO3.

Answers

The moles of silver nitrate required to form 0.854 mol silver ion has been 0.854 mol.

The balanced chemical equation for the dissolution of silver nitrate has been:

[tex]\rm AgNO_3\;\rightarrow\;Ag^+\;+\;NO_3^-[/tex]

The aqueous solution of silver nitrate has been dissociated into the constituent silver and nitrate ions.

In a balanced chemical equation, the coefficient has been equivalent to the moles of each reactant forming the moles of product.

From, the balanced equation,

[tex]\rm 1\;mol\;AgNO_3=1\;mol\;Ag[/tex]

The given moles of Silver has been 0.854 mol. Thus, the moles of silver nitrate required has been given as:

[tex]\rm 1\;mol\;Ag^+=1\;mol\;AgNO_3\\0.854\;mol\;Ag^+=0.854\;\times\;1\;mol\;AgNO_3\\0.854\;mol\;Ag^+=0.854\;mol\;AgNO_3[/tex]

The moles of silver nitrate required to form 0.854 mol silver ion has been 0.854 mol.

For more information about the moles produced, refer to the link:

https://brainly.com/question/10606802

A tank of syngas produced by coal gasification contains 60.0% carbon monoxide, 30.0% hydrogen, and 10.0% carbon dioxide. What is the mass of hydrogen (in g) in 1.00 cubic meter of this syngas mixture at 1.00 atm and 25.0 °C? (1 m³ = 1000 L)

Answers

Considering the ideal gas law, the mass of hydrogen is 24.552 grams.

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P× V = n× R× T

In this case, you know:

P= 1 atmV= 1 m³= 1000 Ln= ?R= 0.082[tex]\frac{atmL}{molK}[/tex]T= 25 °C= 298 °K

Replacing in the ideal gas law:

1 atm× 1000 L = n× 0.082[tex]\frac{atmL}{molK}[/tex]× 298 K

Solving:

[tex]n=\frac{1 atmx1000 L}{0.082 \frac{atmL}{molK}x298 K}[/tex]

n= 40.92 mol

The mol of syngas mixture is 40.92 mol.

Syngas mixture contains 30.0% hydrogen. So, there is a mol fraction of [tex]x_{hydrogen} =[/tex]0.3 . Thus, the mols of hydrogen in syngas mixture is calculated as:

40.92 moles of syngas mixture× 0.3= 12.276 moles of hydrogen

Finally, being the molar mass of hydrogen H₂ 2 [tex]\frac{g}{mole}[/tex], then the mass is:

[tex]12.276 molesx\frac{2 grams}{1 mole}[/tex]= 24.552 grams

In summary, the mass of hydrogen is 24.552 grams.

Learn more about ideal gas law:

https://brainly.com/question/4147359?referrer=searchResults

which of the following atom could reside in the same group? Explain your answer

Answers

Can you send a picture? or explain further? Atoms of elements that are in the same group have the same number of Valence Electrons.

A student is asked to describe three random
elements found on the periodic table. All three
elements will FOR SURE have which of the two
following characteristics?
A. similar color and texture
B. shininess and value
C. mass and volume
D. similar boiling and freezing points

Answers

C hope u get it right bye

All three elements  in the periodic table will for sure have characteristic of mass and volume.

What is an element?

An element  is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom which is characteristic of it's own. Due to this reason all elements are different from one another.

Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.

The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.

Learn more about element,here:

https://brainly.com/question/14347616

#SPJ2

A sample of tin (Cp = 0. 227 J/g•°C) is placed in a freezer. Its temperature decreases from 15. 0°C to â’10. 0°C as it releases 543 J of energy. What is the mass of the sample? Round your answer to three significant figures. G.

Answers

Taking into account the definition of calorimetry, the mass of the sample is 478.41 grams.

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

So, the equation that allows to calculate heat exchanges is:

Q = c× m× ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case, you know:

Q= -543 J because the energy is releasesc= 0.227 [tex]\frac{J}{gC}[/tex]m= ?ΔT= Tfinal - Tinitial= 10 C - 15 C= -5 C

Replacing:

-543 J= 0.227 [tex]\frac{J}{gC}[/tex]× m× (-5 C)

Solving:

[tex]m=\frac{-543 J}{0.227 \frac{J}{gC}x(-5 C)}[/tex]

m=478.41 grams

In summary, the mass of the sample is 478.41 grams.

Learn more about calorimetry:

brainly.com/question/11586486?referrer=searchResults brainly.com/question/24724338?referrer=searchResults

Which materials are used to make concrete select all that apply

Answers

Answer:

cement air water sand and gravel

Explanation:

Answer:

Explanation:

The principal ingredients that make up the concrete mix are: cement, fine aggregate, coarse aggregate, water, chemical admixtures, and mineral admixtures.

Help

what is isotopes

Answers

Isotopes are members of a family of an element that all have the same number of protons but different numbers of neutrons.

why must a ph meter be calibrated by using a solution with a known ph value

Answers

Answer:

A pH calibration is the process of adjusting your pH meter by measuring solutions of a known pH value. This is because the characteristics of your electrode will change over time and this needs to be compensated for. A calibration does this by matching your pH meter to the current characteristics of your pH sensor.

Explanation:

Why does Alex’s equation better represent the reaction?

Answers

Answer : it has been tested

Explanation:

i took the test

Which is the pathway of light as it travels through the eye?cornea → iris → retina → lenscornea → iris → lens → retinairis → cornea → lens → retinaretina → lens → iris → cornea

Answers

Answer:

Cornea >iris>lens >retina

Explanation:

Can't exactly figure out the answer but I think it should look like this

Answer: cornea → iris → lens → retina

Explanation: I have my ways ;>

Mr. Jenson's class is observing the growth of one kind of pea plant.


The class wants to design an experiment to answer the question, "What amount of water will cause the plants to produce the greatest number of peas?"

What could the class do to create the experiment?
A.
give all the pea plants the same amount of water and count the number of peas that the plants produce
B.
give all the pea plants different amounts of water and only guess the number of peas that the plants produce
C.
give all of the pea plants different amounts of water and count the number of peas that the plants produce
D.
stop watering all of the pea plants and then count the number of peas that the plants produce

Answers

Answer:

The answer would be C. Giving the pea plants a different amount of water in each one can help you observe how much water produces the most peas in a pea pod.

The answer is C to give all of the pea plants different amounts of water and count the number of peas that the plants produce

Explanation:

Answer:

C. give all of the pea plants different amounts of water and count the number of peas that the plants produce

Explanation:

The class wants to design an experiment that answers the question, "What amount of water will cause the plants to produce the greatest number of peas?"

To answer the question, the experiment should show how many peas the plants produce when they are given different amounts of water. The best way to do this would be to give all of the plants different amounts of water and count the number of peas that the plants produce.

How does lemon juice stop an apple from turning brown?

Answers

Lemon juice prevents browning because it is full of ascorbic acid (Vitamin C) and it has a low pH level. The oxygen will react with the ascorbic acid before it reacts with polyphenol oxidase (the enzyme in the fruit).

The very act of you observing something
will disturb the system is known as:

Answers

Answer:

The observer effect is the answer.

The speed at which a chemical reaction proceeds is called

Answers

Answer:

Answer: Reaction Rate

Explanation:

reaction rate, in chemistry, the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.

Other Questions
hii pls help me to balance the equation and state the symbols thanksss easy algebra question below first correct answer gets brainliest Enlight the contribution of science and technology for current pandemic of Corona virus?? Journalize the entries for the following transactions: Mar. 1 Established a petty cash fund of $771. 31 The amount of cash in the petty cash fund is now $632. The fund is replenished based on the following receipts: office supplies, $33 selling expenses, $113. Record any discrepancy in the cash short and over account. If an amount box does not require an entry, leave it blank. How the amount of acid rain caused by the burning of fossil fuels can be reduced ? A firework is launched into the air from ground level with an initial velocity of 128 ft/s. If acceleration due to gravity is 16 ft/s2, what is the maximum height reached by the firework? Identify the mood of the verb used in this sentence.Pick up those confidential files on the table please.o indicativeo imperativeo subjunctiveo inspection If give 7 billions for 7 millions people. What is total? Match each land resource to its use. clay - used to make steel iron ore - used to make batteriessalt - used to make pottery and tilesaggregate - used in constructiongraphite - used as a flavoring in foodi will give 10 points and brainliest!!! how has technology changed farming a- there are fewer farms than there used to be b- farmers use mechanical devices to do my tasks.c-farmers produce less food than they used to.d- pesticides are no longer used on most farms Last week, Lamar had $983.45 in his checking account. Since then, he paid $214.67 for his car loan. He also donated $15 to the fire department. Then, Lamar deposited the $50 check his grandma sent him for his birthday. What is Lamar's balance now? What is Avogadro's number?O A. 6.02 x 10-23O B. 6.0223C. 6.02 x 10D. 6.02 x 1023 Calculate the vapor pressure of a solution made by dissolving 550 grams of glucose (molar mass = 180.2 g/mol) in 1020.0 ml of water at 25C. The vapor pressure of pure water at 25C is 23.76 mm Hg. Assume the density of the solution is 1.00 g/ml. (760 torr = 760 mmHg = 1 atm) Can someone help me with all 3 As the operations manager, you prefer to keep a constant workforce and production level, absorbing variations in demand through inventory excesses and shortages. Demand not met is carried over to the following month. Assuming you currently have 23 workers, what is the shortage cost for May Select True or False: The equilibrium constant for the chemical equation 2NO(g) O2(g) 2NO2(g) is two times the equilibrium constant for the chemical equation NO(g) 1/2O2(g) NO2(g). pls help get back to me as son as possible pls bin i cc cu sau sang ph nhhe was planting trees in the garden at 4pm yesterdaythey were working when she came yesterdayshe was painting a picture while her mother was making a cakeAnne was riding her bike to school when Peter saw her yesterdayhe was typing a letter when his boss went into the room For the following relation, find the: a) Reflexive closure b) Symmetric closure c) Transitive closure 2 You may include explanation if you like but no explanation is required. Your solution may be a graphical representation.v g [tex] - x ^{2} + 2x - 6 = 0[/tex]how to do,I don't know the stepanswer is[tex]x = 1 - \sqrt{5} i \: \: \: \: \: or \: \: 1 + \sqrt{5} i[/tex]