Question

Be sure to use proper significant figures. The molecular weight of NaCl is 58.44 grams/mole. With a 0.50 M solution: How many grams of NaCl would there be in 10.0 mL of solution?

Answer 1

Your answer would be, With .5 M in 1000 ml of solution you have 29.22 grams, to find out the amount for 10 ml, divide 1000 ml and grams each by 100. So 10 ml = .2922 grams.




Hope that helps!!!

Answer 2

Answer : The mass of NaCl will be, 0.30 grams

Explanation : Given,

Molarity of solution = 0.50 M

Volume of solution = 10 ml

Conversion used : 1 L = 1000 ml

Molar mass of NaCl (solute) = 58.44 g/mole

Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

`Molarity=\frac{\text{Mass of NaCl}* 1000}{\text{Molar mass of NaCl}* \text{volume of solution in ml}}`

Now put all the given values in this formula, we get the mass of NaCl.

`0.50M=\frac{\text{Mass of NaCl}* 1000}{58.44g/mole* 10ml}`

`\text{Mass of NaCl}=0.30g`

Therefore, the mass of NaCl will be, 0.30 grams