Chemistry, 30.01.2020 09:01 ctyrector

What is the mass of nacl required to make 140 grams of a 12% solution of nacl in water?

12g
14g
17g
18g

Answers: 3

Show answers

Answers

Answer from: amoauya

The correct answer is 17 grams.

Explanation:

To calculate the amount of NaCl required, we use the formula:

$\text{Mass percent}=\frac{\text{Mass of the solute}}{\text{Mass of solution}}\times 100$

We are given:

Mass percent = 12 %

Mass of the solution = 140 grams

Putting values in above equation, we get:

$12=\frac{\text{Mass of NaCl required}}{140g}\times 100\\\\\text{Mass of NaCl required}=17g$

Hence, the correct answer is 17 grams.

Answer from: Quest

that's just how they are

explanation:

you can't control another persons decisions, all you can do is ask that they respect yours. relationships are hard because you have to put the effort into making sure that another person feels seen, heard, and loved. as time goes on, it gets easier, you learn how to do these things without thinking. loving them becomes as easy as breathing, but every relationship will have fights, and sometimes it'll feel like you're drowning, but as long as you can talk it out and compromise, because that's truly what loving another person is, is compromise, then you'll be okay. movies and tv shows have glamorized and romanticized (pardon the pun) what a relationship would be like. real relationships aren't perfectly timed kisses in the rain, zero fights until one big one ends everything, 6 month anniversaries. real relationships are sleepy confused kisses when one person has to leave for work earlier than the other, real relationships are having small disagreements, real relationships are messy and confusing, real relationships is knowing that even if you're relationship may not last forever and this may not be the person you're going to spend the rest of your life with, that you love them, and you would do anything to see them happy. so yes, relationships are difficult, but so are many other things, relationships can be amazing but also stressful, and not just romantic i'm also talking about platonic relationships (although the primary example here was romantic) sometimes is best to leave friendships behind, so remember, always do whats going to you be happy in the long run.

Answer from: Quest

you gotta add the following molecules so we can give u an answer

explanation:

Another question on Chemistry

Chemistry, 22.06.2019 13:30

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves

Answers: 1

Answer

Chemistry, 22.06.2019 14:30

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

Answers: 2

Answer

Chemistry, 22.06.2019 19:10

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

Answers: 3

Answer

Chemistry, 22.06.2019 23:00

What element has similar physical and chemical properties as boron.

Answers: 1

Answer

You know the right answer?

What is the mass of nacl required to make 140 grams of a 12% solution of nacl in water?

...

Questions