Concept explainers
Aluminum sulphate,
a. How many moles of O are present in 3.0 moles of
b. How many moles of aluminum ions
c. How many moles of sulfate ions
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Chapter 7 Solutions
CHEMISTRY: AN INTRODUCTION TO GENERAL, O
- How many electrons are in (a) an ion of Sc3+? (b) a mol of Sc3+? (c) a gram of Sc3+?arrow_forwardFreon- 12 (CCI2F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans. Calculate the number of molecules of Freon-12 in 5.56 mg of Freon-12. What is the mass of chlorine in 5.56 mg of Freon-12?arrow_forwardWhat amount (moles) of compound is present in 1.00 g of each of the compounds in Exercise 52?arrow_forward
- 3.87 Nitric acid (HNO3) can be produced by the reaction of ni- trogen dioxide (NO2) and water. Nitric oxide (NO) is also formed as a product. Write a balanced chemical equation for this reaction.arrow_forward1. How many moles of nitrate ions are present in a sample that contains 4.95 moles of lead(II) nitrate, Pb(NO3)2? moles NO3-2. How many moles of Pb(NO3)2 are present in a sample that contains 3.31 moles of nitrate ions? moles Pb(NO3)2arrow_forward6. Aluminum sulfate, Al2(SO4)3Al2(SO4)3, is used in some antiperspirants. A. How many moles of sulfur are present in 3.2 moles of Al2(SO4)3Al2(SO4)3? Express the number of moles to two significant figures. B. How many moles of aluminum ions are present in 0.34 moles of Al2(SO4)3Al2(SO4)3? Express the number of moles to two significant figures. C. How many moles of sulfate ions (SO42−SO42−) are present in 1.7 moles of Al2(SO4)3Al2(SO4)3? Express the number of moles to two significant figures.arrow_forward
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