223k views
1 vote
An experiment requires .64mol of NaCl to be dissolved in water. What mass of NaCl

would you use?
.64g
58.5g
37.44g
5.4g

1 Answer

6 votes

Answer:

37.44g

Step-by-step explanation:

  • An experiment requires .64mol of NaCl to be dissolved in water.
  • Number of moles of NaCl = 64mol

We are given to calculate the mass of NaCl that we would use.

  • Molecular Mass of NaCl is 58.44 g/mol (approximately)

The relation b/w Given mass, molecular mass and number of moles is

  • n = m/M

Here,

  • (n) represents number of moles,
  • (m) represents given mass and,
  • (M) represents Molecular mass

Using the above relation, we have:

  • m = n × M
  • m = .64 × 58.44 g
  • m = 37.40 g
    \approx 37.44g

Therefore, we would use 37.44g of Nacl

User Lasitha Petthawadu
by
7.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.