Answered: If a sample of CgHsCO2H is found to…

If a sample of CgHsCO2H is found to contain 3.86 · 1020 H atoms how many C6H5CO2H molecules are present? Express your answer in scientific notation.

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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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

**Moles/Grams/Molecules T06/S05**

**Problem Statement:**

If a sample of C₆H₅CO₂H is found to contain 3.86 × 10²⁰ H atoms, how many C₆H₅CO₂H molecules are present? Express your answer in scientific notation.

**Answer:**
\[ \underline{\hspace{50px}} \times 10 \]

**Molar Mass (g/mol):**

- C₆H₅CO₂H: 122.12
- C atom: 12.011
- H atom: 1.0080
- O atom: 15.999

**Avogadro's Number:**
- 6.022 × 10²³ mol⁻¹

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