Nsc-130 Stoichiometry Worksheet Answers.pdf

Stoichiometry Worksheet . 1. NazSlO3

(5) + 8 HF(aq)

~

HzSiF6 (aq)

+ 2 NaF(aq)

+ 3 HzO (I)

I~~ b. How many grams of NaF form when 0.500 mol of HF reacts with excess NazSiO3? 0.

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~ c. How

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many

grams

1

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of NazSiO3 can react

with

-\

0.800

s

5

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~

No--)=

9 of HF?

2. C6HIZ06 (aq) -7 2 C~HsOH (aq) + 2 COz (g)

a. How many moles of CO2 are produced

when 0.400 mol of C6H12O6 reacts in this

fashion? D .~~~~~-

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--t

\'M.o\ (..(g)+1d()/.O

b. How many grams of C6H1Z06 are needed to form 7.50 9 of CzHsOH? (

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~..7 c. How

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=,l:}~.(Jt9~~~c-' many

grams

of COz form

1.5°~Gd-).ff>°I+1 ~ 3. Fe203 (5) +j:o,(g)

~ when

7.50 9 of CzHsOH

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"3=02 (g)

\~\

are produced?

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(unbalanced!)

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()

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a. Calculate the number of grams of CO that can react with 0.150 kg of Fe203

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b. Calculate the number of grams of Fe and the number when 0.150 kg of Fe203 reacts D.

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of grams of CO2 formed

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I

4.2

NaOH

($) + CO2 (g)

~

Na2CO3 (s) + H20 (I)

a. Which reagent is the limiting

(;]) ~1\-.)

allowed

reactant

~~I

'd

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when 1.85 mol NaOH and 1.00 mol COz are

to react?

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-=-

9 ;;1. '5 )'V\.o ,

0.

1-+

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e

b. How

many

moles

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5. C6H6+ Br2 7 )-

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-\

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1.

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of Na2CO3 can be produced?

~\

C6HsBr + HBr

a. What is the theoretical yield of C6HsBr in this reaction when 30.0 9 of C6H6reacts with 65.0 9 or Br2?

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1161.~()~

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C..~11--~~("-1~ Bg

5 \~~1+,:>~

b. If the actual yield of C6HsBr was 56.7 g, what is the percent yield?

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