(Use P_T for total pressure; P_water vapor for water vapor pressure; P_hydrogen gas for hydrogen gas pressure)
From the Dalton's law of partial pressures, the pressure of the hydrogen gas is 91.83 kPa.
What is partial pressure?In a mixture of gases, the total pressure is the sum of the pressures of the individual gases in the mixture according to the Dalton's law of partial pressures.
In this case, the partial pressure of the hydrogen gas is Phydrogen, the partial pressure of water is Pwater and the total pressure is PT.
Hence;
Phydrogen = PT - Pwater
95 - 3.17 = 91.83 kPa
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d. What is being done to save this species
e. An organization/group that is working towards
Create a commercial that showcases why we should save the manta rays
a. Commercials should be about 30seconds-1 minute. No longer than 30
Answer:
the answer is D because they should be asking a question instead of wondering how long the ad is hope this helped.
What is the maximum mass of ammonia that can be formed when 36.52 grams of nitrogen gas reacts with 10.62 grams of hydrogen gas according to the following equation? Please round your answer to the nearest 0.01 gram.
N2 + 3 H2 = 2 NH3
The maximum mass of NH₃ that can be formed when 36.52 g of N₂ reacts with 10.62 g of H₂ is 44.35 g
Balanced equationN₂ + 3H₂ —> 2NH₃
Molar mass of N₂ = 14 × 2 = 28 g/mol
Mass of N₂ from the balanced equation = 1 × 28 = 28 g
Molar mass of H₂ = 2 × 1 = 2 g/mol
Mass of H₂ from the balanced equation = 3 × 2 = 6 g
Molar mass of NH₃ = 14 + (3×1) = 17 g/mol
Mass of NH₃ from the balanced equation = 2 × 17 = 34 g
SUMMARY
From the balanced equation above,
28 g of N₂ reacted with 6 g of H₂ to produce 34 g of NH₃
How to determine the limiting reactantFrom the balanced equation above,
28 g of N₂ reacted with 6 g of H₂
Therefore,
36.52 g of N₂ will react with = (36.52 × 6) / 28 = 7.83 g of H₂
From the above calculation, we can see that only 7.83 g out of 10.62 g of H₂ are required to react completely with 36.52 g of N₂.
Therefore, N₂ is the limiting reactant
How to determine the maximum mass of NH₃ producedFrom the balanced equation above,
28 g of N₂ reacted to produce 34 g of NH₃
Therefore,
36.52 g of N₂ will react to produce = (36.52 × 34) / 28 = 44.35 g of NH₃
Thus, the maximum mass of NH₃ obtained from the reaction is 44.35 g
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How much sample will remain after 40 days for as 200 g sample of Radon-222? The half-life of Radon-222 is 4 days.
Answer:
[tex]\boxed{N_t =0.1953125 \: grams}[/tex]
Explanation:
Formula:
[tex]N_t = N_0( { \frac{1}{2} })^{ \frac{t}{t_ \frac{1}{2} } } [/tex]
Where Nt is the amount of substance remaining after time t,
N0 is the amount of substance at time t = 0,
t is the time at which we have to find out how much substance disintegrated from t = 0 to t = t
& t_1/2 is the half life corresponding radioactive sample.
Given:
N0 = 200g
t= 40 days
t1/2 = 4 days
To find:
Nt =?
Solution:
Substituting given data in above formula,
[tex]N_t = N_0( { \frac{1}{2} })^{ \frac{t}{t_ \frac{1}{2} } } \\ N_t = 200( { \frac{1}{2} })^{ \frac{40}{4 } } \\ N_t = 200 \times 0.0009765625 \\ \boxed{N_t =0.1953125 \: grams} [/tex]
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Which two of the following correctly describe a solution?
A. All solutions are in the liquid phase.
B. The solubility of a solute in a particular solvent is affected by temperature.
C. A solution consists of a solute and solvent.
D. The solubility of a solute in a particular solvent is affected by the densities of the
solute and solvent.
Answer:
C and A
Explanation:
i think it is because a solution is a mix of a solute and solvent, dont judge me if its wrong
One mole of which substance contains a total of 6.02 x 1023 atoms? (I need help please.)
Li
NH3
CO2
02
Answer:
Oxygen
Explanation:
One mole of atoms of oxygen has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains 6.02 X 1023 atoms of oxygen.
The most effective ways to increase the rate of a reaction are to
Answer:
Use a catalyst, use more reactants, have a larger reactant surface area, more pressure, higher temperature.
Explanation:
A gas has a pressure of 98kpa at 30 depress celsiusm. what will the new pressure be if the temperature is increased to 35 degrees celsius
Answer:
99.6 kpa (or maybe 124.2 kpa <======see below)
Explanation:
Assuming constant volume: ( I also assumed +30 C initial temp)
P1/T1 = P2/T2
T2 * P1/T1 = P2 (T must be in K )
(35 + 273.15) * 98 /(273.15 + 30) = 99.6 kpa
Just in case this was -30 C to start, the answer would be 124.2 kpa
19. For the reaction, 2S+ 30=2SO3, how many moles of so3 will be produced from 12.5 g 02 and excess S?
19. For the reaction, 2S+ 30=2SO3, how many moles of so3 will be produced from 12.5 g 02 and excess S?
:
For the reaction: 2S(s) + 3O2 -> 2SO2(g) How many moles of SO3 will be produced from 2.0 mol O2 and excess S?
Answer:
Explanation:
19. For the reaction, 2S+ 30=2SO3, how many moles of so3 will be produced from 12.5 g 02 and excess S?
The table describes a gas in four different containers Which container has gas stored at the highest temperature?
The container that has lowest temperature will store more amount of gas as compared to high temperature container.
Which container has gas stored at the highest temperature?At lowest temperature, the container stored the large amount of gas because at lower temperature the gases contract so more space is available for the storage of more gases.
So we can conclude that the container that has lowest temperature will store more amount of gas as compared to high temperature container.
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Use the equation to answer the prompt. A student claims that the equation models beta-minus decay because the atomic number of the nucleus decreases by one. In one or two sentences, explain the error in the student's reasoning.
The error in the student's reasoning happened as they get confused between the beta minus decay and beta plus decay.
What is beta minus decay?A neutron is converted into a proton in beta minus, increasing the atomic number of the atom.
The proton is positive, while the neutron is neutral. The nucleus also produces an electron and an antineutrino in order to ensure charge conservation.In the given question beta minus decay is not occur as atomic number of the daughter nuclei does not increases. Rather than this in the given decay atomic mass of the daughter nuclei is less than the parent nuclei means plus beta decay is happened there.
Hence the error is in predicting the correct particle with charge.
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how many neutrons does zinc have
Answer:
The number of protons is 30. Substitute the known values, where N represents the number of neutrons. Let's rewrite the equation as 30+N=65 30 + N = 65 .
Answer:
35 neutrons
Step by step explanation:
Atomic mass of Zinc: 65 amu (atomic mass units)
Number of protons in Zinc: 30
Number of neutrons in Zinc: Atomic mass of Zinc - Number of protons in Zinc = 65-30 = 35 neutrons.
Therefore, zinc atoms have 35 neutrons.
Hope this helps!!!
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Which type of fossil can be described as dead wood that has turned into stone?
a. cast fossil
b. sedimentary fossil
c. petrified
d. mold fossil
Answer:
The answer is c hope it is right if it is rong please tell me tho :)
Green plants are primary consumers. True False
Answer:
The answer is False beacuse, plant are called producers because they make their own food.
How many grams of sodium chlorate(nacio3) are in 1.23 x10^23 representative particles?
Answer:
About 21.7 grams.
Explanation:
To find the mass of a sample of sodium chlorate (NaClO₃) given the amount of particles present, we can convert from particles to moles, and moles to mass using its molecular weight.
The molecular weight of sodium chlorate is:
[tex]\displaystyle \begin{aligned} \mathcal{M}_\text{NaClO$_3$} &= (22.99 + 35.45 + 3(16.00)) \text{ g/mol} \\ \\ & = 106.44\text{ g/mol} \end{aligned}[/tex]
And recall that in one mole of any substance, there are 6.02 × 10²³ of it. Hence:
[tex]\displaystyle \begin{aligned} 1.23\times 10^{23} \text{ NaClO$_3$} &\cdot \frac{1\text{ mol NaClO$_3$}}{6.02\times 10^{23}\text{ NaClO$_3$}} \cdot \frac{106.44\text{ g NaClO$_3$}}{1\text{ mol NaClO$_3$}} \\ \\ &= 21.7 \text{ g NaClO$_3$} \end{aligned}[/tex]
In conclusion, there are about 21.7 grams of sodium chlorate.
What isotope has 45 protons and 57 neutrons
…Answer:
Explanation:
What makes this lever effective?
A: The man had more mass than the rock
B: The man is closer to the fulcrum than the rock is
C: The man is farther from the fulcrum than the rock is
D: The rock has more mass than the man
what is the difference between soft water and hard water
Answer:
soft water can leath with soap whiles hard water cannot be leathers with soap
Answer:
Hard water is water with excess calcium and magnesium, while soft water lacks harsh minerals that can hurt your body.
Explanation:
Also, in hard water, soap is not so effective (little or no foam) and in soft water soap is easily effecive (foams easily).
How would you write 16,340 in scientific notation with 2 significant figures?
Answer:
1.6 x 10^4
Explanation:
16,340
with 2 significant figures is
16000
in scientific notation
is 1.6 × 10^4
because 10^4 means
if you move the decimal point 4 spaces then
1.6 becomes 16000
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How many moles of hydrochloric acid are needed to react with 0.64 moles of potassium permanganate?
Answer:
5.12 moles of hydrochloric acid.
Explanation:
The balanced equation is:
2KMnO4 + 16HCl ---> 2KCL + 2MnCl2 + 5Cl2 + 8H2O
So 2 moles of potassium permanganate reacts with 16 moles of HCl.
So 0.64 moles KMnO4 react with (16/2) * 0.64
= 5.12 moles.
What is the general form for the simplest type of acid-base reaction? A. Acid + base → H+ + OH-
B. Acid + base → base + acid
C. Acid + base → salt + water
D. Acid + base → solid + water
Answer:
C
Explanation:
Adding and acid and base together until it is completely neutralized will give us water and a salt.
For example:
HCl + NaOH --> NaCl + H2O
HCl being the acid
NaOH being the base
The H2O is water
The NaCl is the salt
The uncalibrated portion of a Burette is known as
The stopcock is the uncalibrated portion of a burette.
What is a burette?A burette is an instrument use in quantitative analysis which has opening at both ends and a tap at one end and it is use to measuring volume of liquid in the laboratory.
Therefore, The stopcock is the uncalibrated portion of a burette.
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What is a constant in an investigation?
Answer: Heyaa! ~
A constant in an investigation is a quantity
that does not change...
something that is not variable. In statistics, and survey research in particular, responses are typically described as random variables.Hopefully this helps you! ^^
What are communication skills??
Answer:
Communication skills are the abilities you use when giving and receiving different kinds of information. Some examples include communicating new ideas, feelings or even an update on your project. Communication skills involve listening, speaking, observing and empathising. It is also helpful to understand the differences in how to communicate through face-to-face interactions, phone conversations and digital communications like email and social media.
Explanation:
Answer:
The definition. Communication skills enable individuals to understand others and to be understood themselves. A variety of aspects are important in the context of these skills, such as listening, speaking, observing and empathy.
A semiconductor:
A.
always allows charge to flow.
B.
never allows charge to flow.
C.
cannot be used at normal temperatures.
D.
has characteristics between conductors and insulators.
Answer:
D. has characteristics between conductor and insulator
In Africa, the oxpecker is a bird that eats bugs and other parasites from the skin of a rhino. This helps protect the rhino’s skin and keeps the bird fed. Which of the following describes the type of relationship that exists between the oxpecker and the rhino?
Answer:
mutual relationship
Explanation:
pls mark brainliest
Which equation shows a physical change?
A-Pb(NO3)2 (aq) + 2KI(aq) → 2KNO3(aq) + PbI2(s)
B-2H2O(l) → 2H2(g) + O2(g)
C-H2O(g) → H2O(s)
D-HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
Answer:
C
water has undergone a phase change and the composition of a substance was not changed
3 Apply Many scientific words, such as table, also have everyday meanings. Use context clues to write your own definition for each meaning of the word table.
Example sentence
The books are on the table.
table:
__________
Example sentence
A data table is a useful way to organize information.
table:
__________
Answer:
Explanation:
3 Apply Many scientific words, such as table, also have everyday meanings. Use context clues to write your own definition for each meaning of the word table.
Example sentence
The books are on the table
Question 1 (1 point) Which of the following summarizes cellular respiration?
Oxygen reacts with glucose to produce carbon dioxide and water, and release energy.
Light energy is changed into chemical energy.
Chemical energy is changed into light energy.
Light energy is used to join water and carbon dioxide to make oxygen and glucose
Answer:
oxygen reacts with glucose to produce carbon dixiode into water and release energy. It is 1
Explanation:
It is A
Explanation:
Write the nuclear equation for the beta decay Ni-60
[tex]^6^0_2_7CO\;\rightarrow\;^6^0_2_8Ni\;+\;^0_-1e[/tex] is the nuclear equation for the beta decay Ni-60.
What is beta decay?Beta-decay occurs when, in a nucleus with too many protons or too many neutrons, one of the protons or neutrons is transformed into the other.
The nuclear equation for the beta decay Ni-60
[tex]^6^0_2_7CO\;\rightarrow\;^6^0_2_8Ni\;+\;^0_-1e[/tex]
In beta minus (β−) decay, a neutron is converted to a proton, and the process creates an electron and an electron antineutrino; while in beta plus (β+) decay, a proton is converted to a neutron and the process creates a positron and an electron neutrino. β+ decay is also known as positron emission.
Hence, [tex]^6^0_2_7CO\;\rightarrow\;^6^0_2_8Ni\;+\;^0_-1e[/tex] is the nuclear equation for the beta decay Ni-60.
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