10. A 0.514 gram sample of NazCO, (106.0 g/mol) was dissolved in distilled water in a 100.0 mivolumetric flask. The molar concentration of Na,CO, in solution is:0.0485 M0.0370 Mb.0.4849 M0.0340 M0.0330 Md.е. 9. If an unknown sample of H,PO4 was titrated with 015. M standard solution of NaOH usmephenolphthalein as an indicator and 10.02 mL of NaOH was nerded. Calculate the mass in (grams/ kaH.PO, in this sample. (Molar mass of H3PO, 98.0 g/mol)%3Da. 0.010 gb. 0.150 g0.074 gd. 0.040 ge. 0.049 g

Answered: Image /qna-images/answer/25e5dd0f-4e56-4557-ba5f-01534bf767b1.jpg

10. A 0.514 gram sample of NażCO, (106.0 g/mol) was dissolved in distilled water in a 100.0 mi. volumetric flask. The molar concentration of Na,CO, in solution is: 0.0485 M 0.0370 M 0.4849 M 0.0340 M 0.0330 M b. P. e.

10. A 0.514 gram sample of NażCO, (106.0 g/mol) was dissolved in distilled water in a 100.0 mi. volumetric flask. The molar concentration of Na,CO, in solution is: 0.0485 M 0.0370 M 0.4849 M 0.0340 M 0.0330 M b. P. e.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

10. A 0.514 gram sample of NazCO, (106.0 g/mol) was dissolved in distilled water in a 100.0 mi
volumetric flask. The molar concentration of Na,CO, in solution is:
0.0485 M
0.0370 M
b.
0.4849 M
0.0340 M
0.0330 M
d.
е.

9. If an unknown sample of H,PO4 was titrated with 015. M standard solution of NaOH usme
phenolphthalein as an indicator and 10.02 mL of NaOH was nerded. Calculate the mass in (grams/ ka
H.PO, in this sample. (Molar mass of H3PO, 98.0 g/mol)
%3D
a. 0.010 g
b. 0.150 g
0.074 g
d. 0.040 g
e. 0.049 g

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