how many grams of O2 are needed to produce 1.26 x 1028 molecules of H2O

Answered: how many grams of O2 are needed to…

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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how many grams of O₂are needed to produce 1.26 x 10²⁸ molecules of H₂O

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Number of moles can be calculated by dividing number of moles with Avogadro number.

$\begin{matrix} No . of molecules = No . of moles \times Avogadro number \\ No . of moles = \frac{No . of molecules}{Avogadro number} \\ No . of moles = \frac{1.26 \times 10^{28} molecules}{6.022 \times 10^{23} molecules / mol} \\ No . of moles = 2.09 \times 10^{4} mol \end{matrix}$

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