Answered: 1. Calculate the molecular weights of…

1. Calculate the molecular weights of all the compounds in the reaction we are doing in this lab (and copy them onto your procedure... they will be helpful!): a. Na:CO, d. H2O b. HCI e CO2 C. NaCl

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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Lab 5 Prelab Questions
Name:
Stoichiometry
Instructions: Complete the following questions and hand in at the start of yoir lab period or when
instructed by your instructor. Show your work with units and correct significant figures for all questions
that involve a calculation
1. Calculate the molecular weights of all the compounds in the reaction we are doing in this lab
(and copy them onto your procedure... they will be helpful!):
a. Na CO:
d H2O
b. HCI
e CO2
c. Nacl
2.
The following is some example data for the lab. Use the data to answer the following questions.
Mass of test mbe and boiling chip
Mass of test tube, boiling chip and NagCOs
Mass of test tube, boiling chip and NaCI
18.250 g
18.664 g
18.523 g
a. How much NaCO was added to the test tube?
b. How many grams Na€l was psoduced irom the experiment?
Using the balanced chemical equation. the amount of limiting reactant calculated above,
and molar masses from quesiion 1, how many moles of NaCI should the experiment have
produced?
Focus
68
40
%24
*
6.
7.
8.
9.
R
Y

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