### Problem 4: Mass ConversionConvert each of the following to mass in grams:a. \(4.25 \times 10^{24}\) atoms of Nb. \(1.75 \times 10^{23}\) atoms of Pbc. \(8.45 \times 10^{23}\) molecules of CH\(_4\) **I. What is the molar mass for the following?**a. Sr b. Cd c. Br d. SO₃ e. Al f. KNO₃ **II. Mole Conversion Practice (Be sure to show your work!)**1. **Determine the mass in grams of each of the following:** a. 6.35 mol Al b. 52.4 mol P 2. **Convert each of the following from moles to number of particles.** a. 32.45 mol Cr₃(PO₄)₂ = ________________ formula units Cr₃(PO₄)₂ b. 21.7 mol Rn = ________________ Rn atoms 3. **Set up the following conversion problems using dimensional analysis and solve for the answer.** a. What is the mass in grams of 1.355 mol Ca? b. How many grams of argon, Ar, are present in 2.35 x 10²⁴ atoms of argon?

Since you have asked multiple questions, we will solve the first question for you as per our guidelines. If you want any specific question to be solved then please specify the question number or post only that question.a. Number of nitrogen (N) atoms = 4.25×1024 6.022×1023 atoms of N means 1 mole of nitrogen 4.25×1024 atoms of N means ? moles of nitrogen Number of moles of N = 4.25×1024 atoms×1 mole6.022×1023 atoms= 7.0575 mol 1 mole nitrogen means 14.00 g 7.0575 mole nitrogen means ? g Mass of nitrogen = 7.0575 mole×14.00 g1 mole = 98.8 g Mass of nitrogen = 98.8 g b. Number of lead (Pb) atoms = 1.75×1023 6.022×1023 atoms of Pb means 1 mole of Pb 1.75×1023 atoms of Pb means ? moles of Pb Number of moles of Pb = 1.75×1023 atoms×1 mole6.022×1023 atoms= 0.2906 mol 1 mole lead means 207.2 g 0.2906 mole lead means ? g Mass of lead = 0.2906 mole×207.2 g1 mole = 60.2 g Mass of lead = 60.2 g c. Number of methane (CH4) molecules = 8.45×1023 6.022×1023 molecules of CH4 means 1 mole of CH4 8.45×1023 molecules of CH4 ? moles of CH4 Number of moles of CH4 = 8.45×1023 molecules×1 mole6.022×1023 atoms= 1.4032 mol 1 mole methane means 16.04 g 1.4032 mole molecules of CH4 ? g Mass of CH4 = 1.4032 mole×16.04 g1 mole = 22.5 g Mass of CH4 = 22.5 g

Answered: 4. Convert each of the following to…

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Chemistry

4. Convert each of the following to mass in grams a. 4.25 x 1024 atoms N b. 1.75 x 1023 atoms Pb c. 8.45 x 1023 molecules CH4

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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