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Unit: Stoichiometry Answer key βMole-Mole Calculationsβ β WS #1
Stoichiometry, birdville high school - north richland.
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Copyright Β© 201 1 MsRazz ChemClass Name:__________________________________ Date:__________________ Class period:_____
Unit: Stoichiometry Answer key
βmole-mole calculationsβ β ws # 1.
Directions: For each of the following problems, show your balanced chemical equation and all of your calculations.
- How many moles of potassium oxide (K 2 O) will be formed when 1 moles of potassium reacts with oxygen according to the following reaction: 4 K + O 2 Γ 2 K 2 O
= 0. 760 πππ πΎ! π
How many moles of copper are needed to react with sulfur to produce 0 moles of copper(I) sulfide according to the following reaction: 2 Cu + S Γ Cu 2 S 0. 25 πππ πΆπ’! π π₯
1 πππ πΆπ’! π
= 0. 50 πππ πΆπ’.
- How many moles of sodium are needed to react with sulfuric acid to produce 3 moles of sodium sulfate according to the following (unbalanced) reaction: ___ 2 __ Na + _____ H 2 (SO 4 ) Γ _____ Na 2 (SO 4 ) + _____ H 2 3. 75 πππ ππ ! ππ" π₯
1 πππ ππ ! ππ"
= 7. 50 πππ ππ.
- How many moles of calcium oxide will be produced when 1 moles of Iron(III)oxide reacts with calcium phosphate according to the following (unbalanced) reaction: _____ Fe 2 O 3 + _____ Ca 3 (PO 4 ) 2 Γ ___ 2 __ Fe(PO 4 ) + ___ 3 __ CaO 1. 6 πππ πΉπ! π# π₯
1 πππ πΉπ! π#
= 4. 8 πππ πΆπ.
- 12 πππ ππ(πΆππ# ) 2 π₯
1 πππ ππ(πΆππ# ) 2
= 15. 4 πππ π.
- 85 πππ ππ(ππ# ) " π₯
4 πππ πΆπ(ππ# )
3 πππ ππ(ππ# ) ", = 1. 1 πππ πΆπ(ππ# ).
- Multiple Choice
Topic : Stoichiometry
Subject : chemistry, this is a preview.
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COMMENTS
Answers: 4A. 9.9 x 1025 atoms Mn 4B. 20.9 mol Al2O3. 4C. 33.2 mol Mn3O4 4D. 1.3 x 1024 m'cules Al2O3. 5A. 1168 L O2 5B. 817 L CO2. 5C. 0.675 mol H2O. 5D. 899 g C57H110O6. KEY. acid react according to the following balanced equation: x mol Ag 40 mol HNO 3 mol Ag.
Stoichiometry Worksheet #1 Answers 1. Given the following equation: 2 C 4H 10 + 13 O 2---> 8 CO 2 + 10 H 2O, show what the following molar ratios should be. a. C 4H 10 / O 2 b. O 2 / CO 2 c. O 2 / H 2O d. C 4H 10 / CO 2 e. C 4H 10 / H 2O 2. Given the following equation: 2 KClO 3---> 2 KCl + 3 O 2 a. How many moles of O 2 can be produced by ...
Directions: Solve each of the following problems. Show your work, including proper units, to earn full credit. 1. Silver and nitric acid react according to the following balanced equation: 3 Ag(s) + 4 HNO3(aq) 3 AgNO3(aq) + 2 H2O(l) + NO(g) A. How many moles of silver are needed to react with 40 moles of nitric acid? B.
www.njctl.org Chemistry Stoichiometry Homework Set 4: 1. No one likes cockroaches. Since the 1970's exterminators have used a chemical called diazinon, ... ANSWER KEY!!! Classwork Set 1: 1) 2C 2 H 6 + 7O 2--> 4CO 2 + 6H 2 O a) How many moles of O 2 are required to react with 24 moles of C 2 H 6? 84 moles b) How many grams of C 2 H 6
How many grams of O2 are needed to react with of 100. grams of butane? 100. g C4H10 18 How many grams of H2O are produced when 5.38g of O2 is reacted? KEY 2 KClO3 è 2 KCl + 3 O2 1. How many moles of O2 will be formed from 1.65 moles of KClO3? 1.65 mol KClO3 3 mol O2 2 mol KClO3 = 2.48 mol O2 2.
Answer the following questions on your own paper. Show all work. Circle the final. answer, giving units and the correct number of significant figures. 1. Based on the following equation, how many moles of each product are produced when 5.9 moles of Zn(OH)2 are reacted with H3PO4? (You need to balance the equation.) Zn(OH)2 + H3PO4.
Stoichiometry Problems You may work these problems individually, or with one partner. If you work with a partner, both people will get the same score on the assignment. 1. The reaction of calcium hydride with water can be used to prepare small quantities of ... Stoichiometry homework problems key Author: blamp Created Date: 6/22/2017 10:37:31 ...
Stoichiometry WorkSheet #1: Worked Solutions Answer the following questions on your own paper. Show all work. Circle the final answer, giving units and the correct number of significant figures. 1. Based on the following equation, how many moles of each product are produced when 5.9 moles of Zn(OH)2 are reacted with H3PO4?
Stoichiometry Part 1 Answer Key Use the following chemical equation to answer the questions: C 2 H 2 (g) + O 2 (g) β CO 2 (g) + H 2 O (g) a) Write a _____ chemical reaction. 2 C 2 H 2 (g) + 5 O 2 (g) β 4 CO 2 (g) + 2 H 2 O (g) b) Write a mole ratio for C 2 H 2 and O 2. 22 π πΆπ» 2 5 π π2 ππ5 π π 2 π πΆ2π»2
Unit: Stoichiometry Answer key "Mole-Mole Calculations" - WS # 1. Directions: For each of the following problems, show your balanced chemical equation and all of your calculations. How many moles of potassium oxide (K 2 O) will be formed when 1 moles of potassium reacts with oxygen according to the following reaction: 4 K + O 2 Γ 2 K 2 O