Question

On 2

6 pts
Calculate the molarity of NaCl (MM= 58.44) solution that contains 14.61 g in 200,0 mL
using the correct number of significant figures,
O 0.05000 M
O 0.7305 M
O 4.269 M
O 1.250 M

Answer 1

1.250 M

Step-by-step explanation:

M = moles of solute/liters of solution

1. Find number of moles - 14.61 g/58.44 = 0.2500 mol

2. Convert mL to liters - 200.0 mL/1000 = 0.2 liters

3. Divide moles by liters - 0.2500 mol/0.2 liters = 1.2500

4. Round to correct sig fig number - 1.2500 --> 1.250 M