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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Which has more mass, a mole of potassium or a mole of
sodium? Explain your answer.
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- An unknown sample with a total mass of 440.85 g contains carbon, hydrogen, and oxygen. If the sample contains 300.25 g of carbon and 60.6 g of hydrogen, how much oxygen (in g) does the unknown sample contain? What is the empirical formula for the unknown compound?arrow_forwardA sample of a compound containing only magnesium and oxygen is found to have 194g Mg and 256g of O. What are the percentages of Mg and O in this compound?arrow_forwardConvert between mass and moles of an element. What amount of oxygen, in moles, does 49.8 g 0 represent? molesarrow_forward
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