Please Urgent!! And please explain. :) A chemist must dilute 87.0 mL of 1.61 M aqueous sodium carbonate (Na, Co,) solution until the concentration falls to 1,00 M. He'll do this by adding distilled water to the solution until it reaches a certain final volume.
Calculate this final volume, in liters. Round your answer to 3 significant digits.

0.140 Liter

Explanation:

M1V1 = M2V2

M1 = 1.61 M

V1 = 87 ml

M2 = 1.00 M

V2 = ?

V2 = M1V1/M2

V2 = 1.61×87/1

V2 = 140.07 ml

V2= 0.140 L

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles