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Find the grams in 1.26x10^-5 mole of C2H4O2. Use the molar mass conversion factor.
round final answer to the hundredths place.
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- How many moles are represented by 4.0 grams of hydrogen peroxide (H2O2)? Use the conversion factor 1 mole = molar mass * grams or 1 mole/ # grams. Use the correct Units because they must cancel out. Use the significant figure rules to write your final answer. example of how this should be set up is attached.Convert 28.01 moles of X5Z5 into grams of the same compound. (Assume that the molar mass of X is 15.94 grams per mole and the molar mass of Z is 70.55 grams per mole.) Report your answer to three decimal places.a)what answer should be reported, with the correct number of significant figures , for the following calculation? (16.84-15.93) / 9.6318 x 12.3 b) How many formula units does a 200.0g sample of pure MgCl2 contain?
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- Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work.How many moles are there in 7.14 × 10³⁵ molecules of O2 Use the format for solution • Given • Unknown • Conversion Factors • Solution with Cancellation • Final AnswerGeneral formula of a polymer is-(CH2CHCHCN)n-, where n is typically greater than 10,000. Then take a sample of this polymer weighs 755.9 g and contains 3.112 x 1020 molecules of -(CH2CHCHCN)n-, so calculate n?