Asample of 67 g of kno2 is dissolved to make 1 l of solution what is the molarity of the solution?
1.3 m.
0.6 m.
6,773.8m.
329.4m.

Molarity = 0.79 M

Explanation:

Given data:

Mass of KNO₂ = 67 g

Volume of solution = 1 L

Molarity of solution = ?

Solution:

First of all we will calculate the number of moles.

Number of moles = mass/ molar mass

Number of moles = 67 g / 85.10379 g/mol

Number of moles = 0.79 mol

Molarity:

Molarity = number of moles / volume in L

Molarity =  0.79 mol/1 L

Molarity = 0.79 M

the answer is 303.15 or 303

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.