! ( do 4th one with full explanation in typed form , not handwritten ) How many molecules of sodium carbonate are contained in a (9.0x10^1) g Sodium carbonate (Na2CO3) sample? (answer to 2 decimal place)How many molecules of oxygen atoms are contained in a (1.5x10^2) g Sodium carbonate (N22CO3) sample? (answer to 2 decimal place)How many moles of Fe is in Fe(NO3)2What is the mass percent of M9SO4 in MgSO4° 7H2O ? (answer to 2 decimal place)

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What is the mass percent of MgSO4 in MgSO4• 7H2O ? (answer to 2 decimal place)

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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! ( do 4th one with full explanation in typed form , not handwritten )

How many molecules of sodium carbonate are contained in a (9.0x10^1) g Sodium carbonate (Na2CO3) sample? (answer to 2 decimal place)
How many molecules of oxygen atoms are contained in a (1.5x10^2) g Sodium carbonate (N22CO3) sample? (answer to 2 decimal place)
How many moles of Fe is in Fe(NO3)2
What is the mass percent of M9SO4 in MgSO4° 7H2O ? (answer to 2 decimal place)

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