3) What volume (in mL) of guanidine, CH5N3, is required to prepare 250 mL of the following solutions given that the density of guanidine is 1.18 g/cm ? (1 cm3 - 1 mL). Note that the given density is for guanidine (solute) not for the guanidine solution. a. 20% (w/v) b. 89 ppm c. 9.5 mM

3) What volume (in mL) of guanidine, CH5N3, is required to prepare 250 mL of the following solutions given that the density of guanidine is 1.18 g/cm ? (1 cm3 - 1 mL). Note that the given density is for guanidine (solute) not for the guanidine solution. a. 20% (w/v) b. 89 ppm c. 9.5 mM

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.42E

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Question

e pls use the table for molar mass value. complete solution pls

3) What volume (in mL) of guanidine, CH5N3, is required to prepare 250 mL of
the following solutions given that the density of guanidine is 1.18 g/cm3? (1 cm3
=1 mL). Note that the given density is for guanidine (solute) not for the
guanidine solution.
a. 20% (w/v)
b. 89 ppm.
c. 9.5 mM

5. Use the molar masses given in the table below for calculations that require them.
ELEMENT
MOLAR MASS, g/mol
H
1.008
12.011
N
14.007
15.998
Na
22.990
Si
28.085
30.974
CI
35.450
< o O

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