Question

0.050 moles of Na₂CO₃ is dissolved in 0.400 liters of water. Calculate the molarity of the Na₂CO₃ solution.

A: 0.11 M
B: 0.020 M
C: 0.13 M
D: 8M

Answer 1

Step-by-step explanation:

Incomplete Parameters provided. The density of This solution is need to solve this question.

steps to take

Find the Mass of Na2CO3 added

Mass=Mole x Molar mass

=0.05x106

=5.3g.

Find the mass of Water added

Knowing that density of Water is 1g/ml

1g/ml x 1000ml/1L x 0.4L

= 400g of Water

Total Mass = 400 + 5.3 = 405.3g

Recall

Density=Mass/Volume

Volume = Mass/density

The density of the solution isnt given

Get that

Input it into the expression above

and get the volume of solution

Molarity = Moles of solute /Volume of solution in L

THAT WOULD GIVE YOUR ANSWER

HAVE A GREAT DAY!!!