Question

How many moles of NaCl are contained in each solution? Part A 1.8 L of a 1.2 M NaCl solution Express your answer using two significant figures. mol SubmitMy AnswersGive Up Part B 0.408 L of a 0.95 M NaCl solution Express your answer using two significant figures. mol SubmitMy AnswersGive Up Part C 159 mL of a 1.85 M NaCl solution Express your answer using three significant figures. mol SubmitMy AnswersGive Up

Answer 1

A)

volume , V = 1.8 L

we have below equation to be used:

number of mol,

n = Molarity * Volume

= 1.2*1.8

= 2.2 mol

Answer: 2.2 mol

B)

volume , V = 0.408 L

we have below equation to be used:

number of mol,

n = Molarity * Volume

= 0.95*0.408

= 0.39 mol

Answer: 0.39 mol

C)

volume , V = 159 mL

= 0.159 L

we have below equation to be used:

number of mol,

n = Molarity * Volume

= 1.85*0.159

= 0.294 mol

Answer: 0.294 mol