duced when 25.0 g of O2 reacts.ANSWER27.5 g of CO2QUESTIONS AND PROBLEMS7.7 Mass Calculations for Reactions7.66 Iron(III) oxide reacts withmonoxide.LEARNING GOAL Given the mass in grams of a substancein a reaction, calculate the mass in grams of another substancein the reaction.Fe2O3(s) + 3C(s)7.63 Sodium reacts with oxygen to produce sodium oxide.a. How many grams of CFe 02?b. How many grams of Creacts?c. How many grams ofFe2O3 reacts?Nitrogen dioxide and wand nitrogen oxide.4Na(s) + O2(8)2Na,O(s)a. How many grams of Na20 are produced when 57.5 g of Nareacts?b. Ifhave 18.0 g of Na, how many grams of O2 are neededyoufor the reaction?c. How many grams of O2 are needed ina reaction thatduces 75.0 g of Na20?pro-7.677.64 Nitrogen gas reacts with hydrogen gas to produce ammonia.2NH3(8)3NO2(8) + H20(EN2(g) + 3H2(8)a. How many gramsNO2?b. How many gramsc. How many gramsa. If you have 3.64 g of H2, how many grams of NH3 can beproduced?b. How many grams of H2 are needed to react with 2.80 g of N2?c. How many grams of NH3 can be produced from 12.0 g of H2?7.68 Calcium cyanamideate and ammonia.Ammonia and oxygen react to form nitrogen and water.CaCN2(s) + 3H7.65

Question
Asked Nov 1, 2019

Question 7.63

duced when 25.0 g of O2 reacts.
ANSWER
27.5 g of CO2
QUESTIONS AND PROBLEMS
7.7 Mass Calculations for Reactions
7.66 Iron(III) oxide reacts with
monoxide.
LEARNING GOAL Given the mass in grams of a substance
in a reaction, calculate the mass in grams of another substance
in the reaction.
Fe2O3(s) + 3C(s)
7.63 Sodium reacts with oxygen to produce sodium oxide.
a. How many grams of C
Fe 02?
b. How many grams of C
reacts?
c. How many grams of
Fe2O3 reacts?
Nitrogen dioxide and w
and nitrogen oxide.
4Na(s) + O2(8)
2Na,O(s)
a. How many grams of Na20 are produced when 57.5 g of Na
reacts?
b. If
have 18.0 g of Na, how many grams of O2 are needed
you
for the reaction?
c. How many grams of O2 are needed ina reaction that
duces 75.0 g of Na20?
pro-
7.67
7.64 Nitrogen gas reacts with hydrogen gas to produce ammonia.
2NH3(8)
3NO2(8) + H20(E
N2(g) + 3H2(8)
a. How many grams
NO2?
b. How many grams
c. How many grams
a. If you have 3.64 g of H2, how many grams of NH3 can be
produced?
b. How many grams of H2 are needed to react with 2.80 g of N2?
c. How many grams of NH3 can be produced from 12.0 g of H2?
7.68 Calcium cyanamide
ate and ammonia.
Ammonia and oxygen react to form nitrogen and water.
CaCN2(s) + 3H
7.65
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duced when 25.0 g of O2 reacts. ANSWER 27.5 g of CO2 QUESTIONS AND PROBLEMS 7.7 Mass Calculations for Reactions 7.66 Iron(III) oxide reacts with monoxide. LEARNING GOAL Given the mass in grams of a substance in a reaction, calculate the mass in grams of another substance in the reaction. Fe2O3(s) + 3C(s) 7.63 Sodium reacts with oxygen to produce sodium oxide. a. How many grams of C Fe 02? b. How many grams of C reacts? c. How many grams of Fe2O3 reacts? Nitrogen dioxide and w and nitrogen oxide. 4Na(s) + O2(8) 2Na,O(s) a. How many grams of Na20 are produced when 57.5 g of Na reacts? b. If have 18.0 g of Na, how many grams of O2 are needed you for the reaction? c. How many grams of O2 are needed ina reaction that duces 75.0 g of Na20? pro- 7.67 7.64 Nitrogen gas reacts with hydrogen gas to produce ammonia. 2NH3(8) 3NO2(8) + H20(E N2(g) + 3H2(8) a. How many grams NO2? b. How many grams c. How many grams a. If you have 3.64 g of H2, how many grams of NH3 can be produced? b. How many grams of H2 are needed to react with 2.80 g of N2? c. How many grams of NH3 can be produced from 12.0 g of H2? 7.68 Calcium cyanamide ate and ammonia. Ammonia and oxygen react to form nitrogen and water. CaCN2(s) + 3H 7.65

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check_circleExpert Solution
Step 1

Given information:

The chemical equation for reaction between solid sodium and oxygen gas is represented as follows:

4Na(s)+0,(g) 2Na, 0(s)
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4Na(s)+0,(g) 2Na, 0(s)

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Step 2

a. First, number of moles of sodium will be calculated using atomic weight of sodium as follows:

57.5 g
Number of moles of sodium (n,
Na
22.99 g/mol
= 2.501 mol
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57.5 g Number of moles of sodium (n, Na 22.99 g/mol = 2.501 mol

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Step 3

After calculating moles of sodium moles of sodium oxide (Na2O) will be calculated u...

1mol Na 2 mol Na,O
2
4 mol Na mol Na,O
4
2.501mol Na x2.501 mol Na,0
4
1.2505 mol Na,O
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1mol Na 2 mol Na,O 2 4 mol Na mol Na,O 4 2.501mol Na x2.501 mol Na,0 4 1.2505 mol Na,O

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