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Chapter 3: Problem 43

Determine the mass in grams represented by 2.50 mol tellurium.

Short Answer

Expert verified
The mass represented by 2.50 mol of tellurium is 319 g.

Step by step solution

01

Identify the given quantities

The problem provides the number of moles of tellurium, which is 2.50 mol. The molar mass of tellurium (found on the periodic table) is 127.6 g/mol.
02

Apply the molar mass concept

To calculate the mass represented by a certain number of moles, the formula \[ mass = \text{number of moles} \times \text{molar mass} \] is used.
03

Calculation

Substituting the given values into the formula, we get: \[ mass = 2.50 \, \text{mol} \times 127.6 \, \frac{\text{g}}{\text{mol}} \], which simplifies to \[ mass = 319 \, g \]

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Most popular questions from this chapter

Calculate Numbers of Protons, Electrons, and Neutrons. A graphing calculator can run a program that calculates the numbers of protons, electrons, and neutrons given the atomic mass and numbers for an atom. For example,given a calcium-40 atom, you will calculate the numbers of protons, electrons, and neutrons in the atom. Go to Appendix C. If you are using a TI-83 Plus, you can download the program NUMBER and data and can run the applica- tion as directed. If you are using another calculator, your teacher will provide you with keystrokes and data sets to use. After you have run the program, answer the questions below. \begin{equation} \begin{array}{l}{\text { a. Which element has the most protons? }} \\ {\text { b. How many neutrons does mercury-zol }} \\ {\text { have? }} \\ {\text { c. Carbon-12 and carbon-14 have the same }} \\ {\text { atomic number. Do they have the same }} \\ {\text { number of neutrons? Why or why not? }}\end{array} \end{equation}

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