7) The density of Cl2 gas at STP, in grams per liter, is approximately:(а) 1.3(b) 3.9(с) 4.5(d) 3.2(е) 6.28) What total gas volume (in liters) at 520°C and 880 torr would result from thedecomposition of 33 g of potassium bicarbonate according to the equation:2KHCO3(s) = K½CO3(s) + CO2(g) + H2O(g)(a) 12 L(b) 10 L(c) 19 L(d) 37 L(e) 56 L9) The standard heat of combustion of ethanol, CH;OH, is 1372 kJ/molethanol. How much heat (in kJ) would be liberated by completely burning a20.0 g sample?(а) 469 kJ

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7) The density of Cl2 gas at STP, in grams per liter, is approximately: (а) 1.3 (b) 3.9 (с) 4.5 (d) 3.2 (е) 6.2

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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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

7) The density of Cl2 gas at STP, in grams per liter, is approximately:
(а) 1.3
(b) 3.9
(с) 4.5
(d) 3.2
(е) 6.2
8) What total gas volume (in liters) at 520°C and 880 torr would result from the
decomposition of 33 g of potassium bicarbonate according to the equation:
2KHCO3(s) = K½CO3(s) + CO2(g) + H2O(g)
(a) 12 L
(b) 10 L
(c) 19 L
(d) 37 L
(e) 56 L
9) The standard heat of combustion of ethanol, CH;OH, is 1372 kJ/mol
ethanol. How much heat (in kJ) would be liberated by completely burning a
20.0 g sample?
(а) 469 kJ

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