What is the molarity of a solution in which 250 grams of NaCl are dissolved in 2.9 L of water?

Chemistry

1 answer:

Maksim231197 [3]1 year ago

3 0

Answer:

About 1.48 M.

Explanation:

The formula for molarity is mol/L.

So firstly, you must find the amount of moles in 250 grams of NaCl.

I do this by using stoichiometry. First, I find how nany grams are in a single mole of NaCl. This is around 58.44 grams/mole. Now that I know this, I can now use a stoich table. (250 g NaCl * 1 mol NaCl / 58.44 g NaCl). I plug this into my calculator.

I get that 250 grams of NaCl is equal to about 4.28 moles.

Now I just plug into the formula!

4.28 moles/2.9 L = about 1.48

I've attached a picture of my personal notes below which shows work I have done in similar equations.

You might be interested in

What is the energy produced through cellular respiration called?

tresset_1 [31]

Answer:

During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate).

4 0

3 years ago

What is a process of reacting an acid with a base until an equivalence point is reached

Brrunno [24]

TITRATION is the process of reaching equilibrium between acids and bases.

8 0

2 years ago

QUESTION 10

worty [1.4K]

I have no idea honestly I don’t remember I had it and I forgot it

6 0

3 years ago

What is the final pressure of a system (atm) that has the volume increased from 0.75 l to 1.1 l with an initial pressure of 1.25

lana66690 [7]

Boyle's law states that pressure is inversely proportional to volume of gas at constant temperature
PV = k
where P - pressure , V - volume and k - constant
P1V1 = P2V2
where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
substituting these values in the equation
1.25 atm x 0.75 L = P x 1.1 L
P = 0.85 atm
final pressure is B) 0.85 atm

3 0

2 years ago

In which of the following reactions is chlorine (Cl) oxidized? Br2 + 2Cl− → Cl2 + 2Br− Cl2 + 2e− → 2Cl− 2ClO3− + 12H+ → Cl2 + 6H

Tomtit [17]

2CIO3 is the answer to your question

7 0

2 years ago

Read 2 more answers