Only100 please 3.99 An intermediate step in the production of nitric acid involvesthe reaction of ammonia with oxygen gas to form nitrogen mon-oxide and water. How many grams of nitrogen monoxide canform in the reaction of 485 g of ammonia with 792 g of oxygen?3.100/Butane gas is compressed and used as a liquid fuel in dis-posable cigarette lighters and lightweight camping stoves. Sup-pose a lighter contains 5.50 mL of butane (d = 0.579 g/mL).(a) How many grams of oxygen are needed to burn the butanecompletely?(b) How many moles of H,O form when all the butane burns?(c) How many total molecules of gas form when the butane burnscompletely?3.101 Sodium borohydride (NaBH4) is used industrially in manyorganic syntheses. One way to prepare it is by reacting sodiumhydride with gaseous diborane (B2H6). Assuming an 88.5% yield,how many grams of NaBH, can be prepared by reacting 7.98 g ofsodium hydride and 8.16 g of diborane?Comprehensive Problems3.102 The mole is defined in terms of the carbon-12 atom. Use thedefinition to find (a) the mass in grams equal to 1 atomic massunit; (b) the ratio of the gram to the atomic mass unit.3.103 The first sulfur-nitrogen compound was prepared in 1835and has been used to synthesize many others. In the early 1980s,researchers made another such compound that conducts electric-ity like a metal. Mass spectrometry of the compound shows amolar mass of 184.27 g/mol, and analysis shows it to contain2.288of S for every 1.000 g of N. What is its molecularformula?3.104 Hydroxyapatite, Cas(PO4)3(OH), is the main mineral

Density = mass / volume Equation representing combustion of butane: 2 C4H10 + 13 O2 → 8 CO2 + 10 H2O…

3.100 Butane gas is compressed and used as a liquid fuel in dis- posable cigarette lighters and lightweight camping stoves. Sup- pose a lighter contains 5.50 mL of butane (d= 0.579 g/mL). (a) How many grams of oxygen are needed to burn the butane completely? (b) How many moles of H,O form when all the butane burns? (c) How many total molecules of gas form when the butane burns completely?

3.100 Butane gas is compressed and used as a liquid fuel in dis- posable cigarette lighters and lightweight camping stoves. Sup- pose a lighter contains 5.50 mL of butane (d= 0.579 g/mL). (a) How many grams of oxygen are needed to burn the butane completely? (b) How many moles of H,O form when all the butane burns? (c) How many total molecules of gas form when the butane burns completely?

World of Chemistry

7th Edition

ISBN:9780618562763

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter9: Chemical Quantities

Section: Chapter Questions

Problem 47A

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

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Only100 please

3.99 An intermediate step in the production of nitric acid involves
the reaction of ammonia with oxygen gas to form nitrogen mon-
oxide and water. How many grams of nitrogen monoxide can
form in the reaction of 485 g of ammonia with 792 g of oxygen?
3.100/Butane gas is compressed and used as a liquid fuel in dis-
posable cigarette lighters and lightweight camping stoves. Sup-
pose a lighter contains 5.50 mL of butane (d = 0.579 g/mL).
(a) How many grams of oxygen are needed to burn the butane
completely?
(b) How many moles of H,O form when all the butane burns?
(c) How many total molecules of gas form when the butane burns
completely?
3.101 Sodium borohydride (NaBH4) is used industrially in many
organic syntheses. One way to prepare it is by reacting sodium
hydride with gaseous diborane (B2H6). Assuming an 88.5% yield,
how many grams of NaBH, can be prepared by reacting 7.98 g of
sodium hydride and 8.16 g of diborane?
Comprehensive Problems
3.102 The mole is defined in terms of the carbon-12 atom. Use the
definition to find (a) the mass in grams equal to 1 atomic mass
unit; (b) the ratio of the gram to the atomic mass unit.
3.103 The first sulfur-nitrogen compound was prepared in 1835
and has been used to synthesize many others. In the early 1980s,
researchers made another such compound that conducts electric-
ity like a metal. Mass spectrometry of the compound shows a
molar mass of 184.27 g/mol, and analysis shows it to contain
2.288
of S for every 1.000 g of N. What is its molecular
formula?
3.104 Hydroxyapatite, Cas(PO4)3(OH), is the main mineral

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