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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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How many miles of K2SO4 are in 15.0 g of K2SO4?
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- I am having a bit of trouble with significant figures and rounding. In a question such as the one below, would the sig fig I put in my answer be correct? How many moles are present in 3.44 g CoCl2 ꞏ 6H2O? = (Which sig fig amount is correct-->) .0217 moles or .021 moles The whole answer was 0.02177904, would I round this answer to the 3rd sig fig? So, is the correct answer actually .022?arrow_forward2. A mixture of Na2SO4 and its hydrate Na2SO4-10H₂O has a mass of 1.5099 g. After heating to drive off all the water, the mass is only 1.1410 g. What is the weight percentage of Na2SO4.10H₂O in the original mixture? Report your answer to 4 significant figures. Molar masses: Na2SO4 142.04 g/mol; Na2SO4.10H₂O 322.19 g/mol.arrow_forward1 _ 02>_CO2 +_H20 1)_CsHs +, 6.003g of oxygen, makes how many moles of water?arrow_forward
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