Answered: 2. What mass of Na-PO-12H₂O would be…

2. What mass of Na-PO-12H₂O would be needed to prepare 0.250 L of a solution in which the Nation concentration is 0.250 moles per liter?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section13.6: Expressing Solution Composition

Problem 13.7PSP

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Question

Number 2,3,and 4

Quantitative Solution Preparation (Molarity)
radions ba
Name
Section
Homework:
1. What mass of MgSO4.7H₂O will be contained in 125.0 mL of 0.1500 M MgSO, solution?
12S
Tyler Looney
noittrice
•15001296.972 May 7, 24.305
ImmoSoy $ 32.066-1207
hind
(9.6204 MO 15.999 I
2. What mass of Na-PO-12H₂O would be needed to prepare 0.250 L of a solution in which the Na+ ion concentration is 0.250 moles
(ans: 4.620 g)
per liter?
67
(ans: 7.92 g)
3. What volume of concentrated sulfuric acid (18.4 M H₂SO₂) is needed to prepare 250.0 mL of 3.00 M H₂SO₂?
(ans: 40.8 mL)
4. If 22.22 mL of a 1.50 M Ni(NO3)₂ solution is diluted to exactly 250.0 mL, what will be the concentration of the dilute
solution?
(ans: 0.133 M

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