Chemistry (OER)
2nd Edition
ISBN: 9781947172616
Author: OpenStax
Publisher: OpenStax College
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Chapter 5, Problem 47E
How many moles of isooctane must be burned to produce loo U of heat under standard state conditions?
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3.
An unknown element, X, combines with chlorine to give a substance with the formula
XC14. A chlorine analysis of the substance indicates that it contains 83.47% chlorine by mass.
What element is X and what is the formula of this compound?
(Hint: to identify an element or compound, identify its molar mass. Remember that Molar Mass
= (grams A)/(moles A). Solve for each individually and then divide them to find molar mass.)
Chapter 5 Solutions
Chemistry (OER)
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