Question

2.3 grams of nacl is dissolved in water to make 100 ml solution. what is the concentration (molarity) of the nacl solution?

Answer 1

0.39 M

Step-by-step explanation:

Using the formula: M = moles of solute / liters of solution

Before that, convert 2.3 grams of NaCl to moles:

2.3 grams ×
`(1 mole)/(58.44 grams)` = 0.03935660507 moles

Convert given mL to L:

100 mL ×
`(1 L)/(1000 mL)` = 0.1 L

Calculate the molarity of the solution:

M = 0.03935660507 moles / 0.1 = 0.39 M