Čj pro ZNCI, + H2 3. Zn + 2HCI How many moles of hydrogen are produced from the reaction of three moles of zinc with an excess of hydrochloric acid? 3Co, + 4H,0 4. CH, + 50, How many moles of oxygen are necessaty to react completely with tour moles of propane (CH)? 5 KPO, + AKNO), How many moles of potassium nitrate are produced when two moles of potassium phosphate react with two moles of aluminum nitrate? - 3KNO, + AIPO,

Čj pro ZNCI, + H2 3. Zn + 2HCI How many moles of hydrogen are produced from the reaction of three moles of zinc with an excess of hydrochloric acid? 3Co, + 4H,0 4. CH, + 50, How many moles of oxygen are necessaty to react completely with tour moles of propane (CH)? 5 KPO, + AKNO), How many moles of potassium nitrate are produced when two moles of potassium phosphate react with two moles of aluminum nitrate? - 3KNO, + AIPO,

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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Suppose the following reaction was carried out in the presence of excess Al. Al + Cl2 ---> AlCl3 How many moles of Al are consumed if 9.07 moles of Cl2 were fully reacted?
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2A1(s) + 6HCI(aq) → 2AIC1,(aq) + 3H,g) How many moles of hydrogen gas could be produced if you began the reaction with 7.30 moles of hydrochloric acid? O 21.9mol H2 O 3.65molH2 O 6.00mol H2 O 4.87mol H2
8. Consider the following reaction: 5A + 3B --> 2C + 2D 10.0 moles of A and 6.00 moles of B reacted and produced 3.00 moles of D. What is the percent yield of product D in this reaction?
Consider the reaction below. How many grams of nitric acid are needed to completely react with 4.22 g of a mineral that contains 69% copper (II) carbonate? CUCO3 + 2 HNO, --> Cu{NO3)2 + CO, + H2O Mmass CUCO, = 123.6 g/mol Mmass HNO, - 63 g/mal 4302
Consider the reaction 4Fe(s) +302(g) --> 2FE203(s) If you started with and consumed 4 moles of O2, how many moles of Fe2O3 would you produce?
Answer the questions about the balanced reaction ЗА + 2В — 1C + 100. cal How many moles of A are required to react with 2 mole of B ? How many moles of A are required to react with 4 moles of B ? Is the relationship between moles of A and Ca direct proportion ? а. О b. 1 с. 2 d. 3 е. 4 f. 5 g. 6 h. 7 i. yes j. no
11. T/ Write a balanced chemical equation for each chemical reaction. a. Solid potassium reacts with gaseous chlorine to form solid potassium chloride. c. Nitrogen gas and hydrogen gas react to form gaseous ammonia. 12. TI Barium hydroxide can react with phosphoric acid to form barium hydrogen phosphate and water: Ba(OH)2(s) + H;PO,(aq) → BaHPO4(s) + H,O(t) c. Write the balanced chemical equation.
1. Determine the molar mass of (a) MgSO4. (NH4)2CO4 2. What is the percentage of Ca in CaSO4 3. How many moles of (a) C0₂ in 132g of CO₂ and (b) moles of O₂ in 128g O₂ 4. What is the Empirical formula of (a) Glucose, C6H₁2O6 and Cyclohexane C6H₁2 (b) + 5. How do you detect the presence of (a) NH4* ion; (b) CO32- ion; (c) SO4²- ion 6. Zn is 65.4g /mol, what is number of atoms for 0.2g of Zn using the Avogadro's number. 7. Consider the combustion reaction of methane, CH If 2.1 mol of methane is allowed to react with 4.0 mol of oxygen, which is the limiting reagent ? ● 8. Ethane, C₂H₂ react with O₂ to give CO₂ and H₂O. If 5 mols of Ethane is placed with 16 mols of O2, how many mols of CO₂ will be produced.
6. Mg(OH)2+ H3N-> Mg3N2 + heat a. Balance the reaction b. What is the reaction type? C. If 0.540 g of hydronitric acid react in the presence of excess magnesium hydroxide, what is the theoretical yleld of water produced in grams? d. If 1.32 g of water is actually produced, what is the percent yield? e. What is the percent error?
mheducation.com/ext/map/index.html?_con=con&external_browser=0&laun mework i Saved Consider the following balanced chemical equation: 4Fe(s) + 302(g) → 2Fe2O3(s) a. How many moles of iron are required to react with 53.2 moles of O2? moles Fe b. How many moles of O2 are required to react with 53.2 moles of iron? moles O2 Enc c. How many moles of O2 are required to form 53.2 moles of Fe2O3? Assume excess Fe. moles O2 ‒‒‒‒‒‒
8. Use the following equation for the following: ni 916 2siuosiom ynsm woll Mg3N2 + H₂O → Mg(OH)2 + NH3 20000.0 6 a. Balance the equation. IX IX. b. How many moles of NH3 are produced when 0.0425 moles of Mg3N2 are reacted? c. How many grams of H₂O are needed to form 6.31 x 10-5 moles of Mg(OH)2 ? d. How many molecules of H₂O are needed to react with 0.525 lbs Mg3N₂? e. How many kilograms of Mg(OH)2 are produced when 7.23 x 1027 molecules of NH3 are also produced? f. How many grams of Mg3N2 are needed to make 4.18 lb Mg(OH)2 ?
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