Dimensional analysis & conversions. If you need scientific notation in you answer, copy this for the exponential part: "x10^". An example would be 6.022x10^23 for Avogadro's number. Your answers need to have the correct number of significant figures. How many moles of oxygen are in 55.2 grams of KNO3? (The molar mass of KNO3 is 101.1 g/mol.)

Dimensional analysis & conversions. If you need scientific notation in you answer, copy this for the exponential part: "x10^". An example would be 6.022x10^23 for Avogadro's number. Your answers need to have the correct number of significant figures. How many moles of oxygen are in 55.2 grams of KNO3? (The molar mass of KNO3 is 101.1 g/mol.)

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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11195@djis.edu.sa Switch account Your email will be recorded when you submit this form * Required Choose the correct answer: Using the following equation: Fe:O:(s) + 3H2(g) → 2Fe(s) + 3H2O(1) How many grams of iron,Fe, can be made from 6 g H2? MM (H2) = 2g/mol and MM (Fe) = 56 %3D g/mol * 56 g 112 g O 168 g O 12 g
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Please help me, and double and triple check your answers previous tutors got questions wrong
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Be sure to answer all parts. Potassium is the second most abundant metal in the human body. Calculate the following: (a) The number of atoms in 7.11 moles of potassium. X 10 atoms Enter your answer in scientific notation. (b) The number of moles of potassium that contains 9.11 × 1025 atoms. x 10 mol Enter your answer in scientific notation.