Taking into account the definition of molarity, 14.028 grams of sodium chloride must be added to make 400 mL of a 0.600 M sodium chloride.
Definition of molarityMolar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.
The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:
[tex]Molarity=\frac{number of moles}{volume}[/tex]
Molarity is expressed in units [tex]\frac{moles}{liter}[/tex].
Moles of sodium chlorideIn this case, you know:
Molarity= 0.600 Mnumber of moles= ?volume= 400 mL= 0.400 L (being 1000 mL= 1 L)Replacing in the definition of molarity:
[tex]0.600 M=\frac{number of moles}{0.400 L}[/tex]
Solving:
number of moles= 0.600 M× 0.400 L
number of moles= 0.24 moles
Mass of sodium chlorideBeing the molar mass of sodium chloride 58.45 [tex]\frac{g}{mole}[/tex], that is the amount of mass that a substance contains in one mole, the mass of sodium chloride can be calculated as:
0.24 moles×58.45 [tex]\frac{g}{mole}[/tex]= 14.028 grams
Finally, 14.028 grams of sodium chloride must be added to make 400 mL of a 0.600 M sodium chloride.
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A hotel installs a new swimming pool and a new hot tub
Answer:
What's the question
Explanation:
?????
All of the following are examples of postsecondary education except
Answer:
Answer is B. Military service
Explanation:
Answer is B. Military service
Explain three things that you do in an airport or airplane when taking a trip. use complete sentences in spanish
When taking a trip it is important to know the airport regulations, these depend on each country and each airport, so it is advisable to do the following things:
Verifica el estatus del vuelo.Tener los documentos (pasaporte, boletos) en una bolsa de facil acceso.Infórmase sobre las restricciones (líquidos, comida).Translation:
Check the status of the flight.Have the documents (passport, tickets) in an easily accessible bag.Find out about restrictions (liquids, food).What to do in an airport?The first step when you arrive at the airport is to check in the luggage, verify the status of the flight, take an accessible bag to carry all the documentation that can certify you as a tourist under legal conditions.
Find out about the restrictions (liquids, food), knowing in advance what items we should not include in our hand luggage or what the rules of behavior at the airport.
Therefore, we can conclude that when taking a trip it is important to know the airport regulations, these depend on each country and each airport.
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Calculate the number of moles contained in 550. ml of carbon dioxide at stp.
Considering the definition of STP conditions, 0.02455 moles are contained in 550 mL of carbon dioxide at STP.
Definition of STP conditionThe STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.
Amount of moles contained in 550 mLIn this case, you can apply the following rule of three: if by definition of STP conditions 22.4 liters are occupied by 1 mole of helium, 0.550 L (0.550 L= 550 mL, being 1 L= 1000 mL) are occupied by how many moles?
[tex]amount of moles=\frac{0.550 Lx 1 mole}{22.4 L}[/tex]
amount of moles= 0.02455 moles
Finally, 0.02455 moles are contained in 550 mL of carbon dioxide at STP.
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12.1 arithmetic sequences algebra 2 volume 2 answers
An example of 12.1 arithmetic sequences algebra 2 question is Find the sum of the arithmetic series given as 1,2,3…..99,100.
What is Arithmetic sequences?An arithmetic sequence is known to be a group or sequence of numbers that is said to be the difference that exist between any two successive members of the sequence and it is a constant.
To find the sequence, one was given a total of 100 values:
So n=100.
first value = 1
Last = 100.
[tex]S_{100}[/tex]=100/2 (1+100)= 5050
Therefore the answer is 5050
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What is the total amount of work required to move an electron through a potential difference of 100 volts?
Answer:2)1.6x10^-17 J
Explanation:
Five factors that may lead to youth not being innovative in organising awareness campaign
Answer:
No knowledge of campagining Little creative to be able to do campaigns Lack of organizing ability.Assumption they dont need to campaignLack of experience and no motivation to learnThe standard form of the equation of a circle is (x−3)2+(y−1)2=16. what is the general form of the equation?
Answer:
x=3 y=1
Explanation:
x-3=0 y-1=0
x=3 y=1
(3-3)2+(1-1)=16
Answer:
Hello! Really really sorry I am alte! Hope this helps though! Have a nice day! And really helpful for k12 users!
Explanation:
Dani was walking home with her parents and noticed an elderly person struggling to open a door. dani decided to open the door for the person, because she knew her parents would praise her behavior. dani's behavior is an example of:
Answer:
7. none of the above
Which detail from black boy best helps to develop the central idea that richard learns face his fears to help feed his family?
Answer:
"I hit again and again, dropping the money and the grocery list. The boys scattered, yelling, nursing their heads, staring at me in utter disbelief. They had never seen such frenzy."
Explanation:
just took test
Answer: "I hit again and again, dropping the money and the grocery list. The boys scattered, yelling, nursing their heads, staring at me in utter disbelief. They had never seen such frenzy."
Explanation:
just took test
Which three items should a user remember when rating digital information
The three items a user remember when rating digital information are
Accuracy, Distribtion and Information
Digital Information Rating
Digital Ratings give us information about an idea of its content consumption by estimating
audience outreach, frequency and tme spent on digital contenet gross rating point (GRP).When rating any digital information, it is important to rememnber
Accuracy : This determines the quality of the informationDistrribution: This determines its sustainabilityInformation: This determines its relevancelearn more on digital Rating here:https://brainly.com/question/24152511
Course 3 chapter 5 triangles and the pythagorean theorem
The pythagorean theorem is used to calculate the lengths of a right triangle
The hypotenuse of the triangle is 6.5 cm
How to determine the hypotenuse of the triangle?From the complete question, we have the following side lengths
Opposite = 5.7 cmAdjacent = 3.2 cmThe hypotenuse of the triangle is then calculated as:
Hypotenuse^2 = Opposite^2 + Adjacent^2
This gives
Hypotenuse^2 = 3.2^2 + 5.7^2
Evaluate the sum
Hypotenuse^2 = 42.73
Take the square root of both sides
Hypotenuse = 6.5
Hence, the hypotenuse of the triangle is 6.5 cm
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Lesson 11.2 angle theorems for triangles answer key
There are a lot of Lessons in math. The example of 11.2 angle theorems for triangles is: Find the value of the angle (image attached)?.
What are triangles?A triangle is known to be a type of polygon that has three edges and three vertices.
To fine the value, not that an angle on a straight line is 180.
So therefore, you subtract the other angles from 180.
It will be 180-90-45= 45.
So therefore, the angle is 45 degree
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Which change is an unlikely result of destruction of wetlands?
Answer:
healthy fish populations
Explanation:
i just took the test and get it right
Which best describes x and y? x = spherical; y = e. coli x = comma shaped; y = whooping cough x = oval shaped; y = s. aureus x = rod shaped; y = pneumonia
The option that best describes x and y is that X = Spherical; Y = E Coli.
What is the table about?In the table, X is known to be a shape of bacteria that has developed as a coccus and its linked to a disease called strep throat. Using its form, one can imply that bacteria is spherical in nature such as streptococcus pneumonia.
The shape of the Y bacteria connote that it is an E-coli. The Y is said to be E-coli because it has its characteristics.
See full question below
Consider the table.
Types of Bacteria
Form
Shape
Associated disease
Coccus
X
Strep throat
Bacillus
Rod shaped
Y
Spirillum
Spiral
Cholera
Which best describes x and y? x = spherical; y = e. coli x = comma shaped; y = whooping cough x = oval shaped; y = s. aureus x = rod shaped; y = pneumonia
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Answer:
A... X=spherical, y=E.coli
Explanation:
should peanut butter be refrigerated after opening
Select the correct answers from the drop-down menus. read the excerpt. then choose the correct way to complete each sentence. wilson sees as the key to achieving peace. a quotation that supports this conclusion is .
The correct way to complete the sentence that supports Wilson's conclusion about achieving peace is;
''He laid out a vision for a just and peaceful world, a future that included free seas, an international agreement to avoid arms races''.What was President Wilson words about peace?President Wilson stated that peace can be accepted most times when there is humiliation, or when a country is under duress,
He believed in the idea of a just and peaceful world, a future where there is no free seas, and also there is in place, an international agreement to avoid arms issues.
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State four reasons why knowing the entry requirements is important
Answer:
to avoid any mistakes
to make sure you are not breaking any rules
to make sure your information is rendered valid
to follow the procedures
Explanation:
.
Find the probability distribution of the random variable w in exercise 3.3, assuming that the coin is biased so that a head is twice as likely to occur as a tail.
There are four major types of probability and they include:
classical, empirical, subjective axiomaticWhat is Probability?This refers to the mathematical depictions of the possibility of an event occurring based on given variables.
Please note that your question is incomplete so I gave you a general overview of a probability distribution.
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Which policy did the "nursemaids" use to keep the "baby" quiet?
What is the length of the unknown leg of the given rigth triangle? startroot 3 endrootft startroot 6 endrootft startroot 39 endrootft startroot 89 endrootft
Answer:
39 ft.
Explanation:
Correct on Edge
A person moves away from a stationary sound source
Express the interval in terms of an inequality involving absolute value 1 5
Answer:
Explanation:
Step 1 To express the given interval in terms of an inequality involving absolute value. Step 2 Given information: The interval is (0, 4). Step 3 Calculation: Let (a, b) is an open interval and r is the radius, and the midpoint is c, then the interval can be represented as {x ∈ R | x − c ∣ < r} where c = a + b 2 and r = b − a 2 And the given interval is (0, 4).
Intensive care units (icus) generally treat the sickest patients in a hospital. icus are often the most expensive department in a hospital because of the specialized equipment and extensive training required to be an icu doctor or nurse. therefore, it is important to use icus as efficiently as possible in a hospital. according to a large-scale study of elderly icu patients, the average length of stay in the icu is days (critical care medicine journal article). assume that this length of stay in the icu has an exponential distribution. do not round intermediate calculations.
a. Probability that the length of stay in the ICU is one day or less is:0.2614.
b. Probability that the length of stay in the ICU is between two and three days is:0.1426
c. Probability that the length of stay in the ICU is more than five days is:0.2198.
Probability
a. Probabilty of one day or less.
Using this formula
P(X≤1)=1-e^-ux
Since mean is 3.3 the decay parameter is:
u=1/3.3
Hence:
P(X≤1)=1-e^-1/3.3
P(X≤1)=1-e^-0.3030
P(X≤1)=1-0.7385991
P(X≤1)=0.2614
b. Probability of two and three days.
P(X≤2)=1-e^-ux
P(X≤2)=1-e^-2/3.3
P(X≤2)=1-e^-0.60606
P(X≤2)=1-0.54549589
P(X≤2)=0.45450
P(X≤3)=1-e^-ux
P(X≤3)=1-e^-3/3.3
P(X≤3)=1-e^-0.909091
P(X≤3)=1-0.402890
P(X≤3)=0.59711
Hence:
P(2≤X≤3)=0.59711-0.45450
P(2≤X≤3)=0.1426
c. Probability of more than 5 days.
P(X≤5)=e^-ux
P(X≤5)=e^-5/3.3
P(X≤5)=e^-1.515152
P(X≤5)=0.219775
P(X≤5)=0.2198 (Approximately)
Inconclusion the probability that the length of stay in the ICU is one day or less is:0.2614.
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Which propaganda technique is represented by the quote, "my opponent is soft on crime!"? a) bandwagon b) name calling c) stacked cards d) glittering generality
The propaganda technique represented by the quote "my opponent is soft on crime!" is name calling (Option b).
What is name-calling?The expression name-calling makes reference to the propaganda based on stereotypes and/or labeling.
The name-calling strategy can be a direct or indirect manner for making the propaganda in the media.
This propaganda (name-calling) occurs when complementary expressions-words are used by the media to describe people.
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Two skydivers of different masses jump from a plane
The relationship between the net force of both sky divers is that; the net force for both skydivers is the same.
What is the net force experienced?We are told that two skydivers of different masses are jumping out of an airplane. Now, at some point, both skydivers will slow down to the point at where they reach constant velocity.
Due to the fact that the velocity for both sky divers is constant, it means that no acceleration will occur and as such, the net force on each sky diver is zero.
Thus, we conclude that the net force for both skydivers is the same.
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Choose the best translation: employer trabajador administración inventario empleador
Answer:
D. empleador
Explanation:
The Spanish word “trabajadores” translated to English means workers. It is the word that does not fit in the group of answer choices.
What is “Trabajadores”?“Trabajadores” has been known as a noun while the rest of the words are adjectives that describe an object or a person. This was expressed in one of his deepest thoughts which expresses that: "the artist works on himself and his time, works to give clarity to his conscience and his contemporaries of himself and his time".
The key to finding the correct descriptor of Yolanda is to pay attention to gender. Yolanda is a feminine name, thus the adjective used to describe someone named Yolanda (presumably a female) in Spanish would take a feminine form.
Therefore, The Spanish word “trabajadores” translated to English means workers. It is the word that does not fit in the group of answer choices.
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Why does the coach interrupt jeremy at the end of the scene
The coach interrupt Jeremy at the end of the scene because he wants Jeremy as his assistant and prevents him from refusing the job.
What is the Assistant known for?A personal assistant, is known to be a person often called personal aide or personal secretary (PS).
Conclusively, It is a person who helps the head or a coach as in this scenario in some of their daily business activities. Note that The coach interrupt Jeremy at the end of the scene because he wants Jeremy as his assistant and prevents him from refusing the job.
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Answer:
He wants jeremy as an assientant and prevents him from refuse
Explanation:
i got it right
All animals need to eat blank to get blank to live
Answer:
Food
Explanation:
I mean what else would it be?
Answer:
All animals need to eat food to get energy to live.
Explanation:
Every animal need to eat food to survive as well as get energy. Nutrition is the process by which living things get or make food. Thus, the best answer to fit in the blank are:
FoodEnergyHence, the blank :
All animals need to eat food to get energy to live.
~lenvy~
Precalculus: mathematics for calculus, enhanced review edition solutions
Answer:
Hello I see you know about math but Is it your question
Explanation:
