An experiment shows that a 111 mL gas sample has a mass of 0.171 g at a pressure of 741 mmHg and a temperature of 33 °C.SSWhat is the molar mass of the gas?ΑΣ.?g/molSubmitRequest AnswerConsider the following chemical reaction:2H2O(1) → 2H2 (g) + O2(g)What mass of H2 0 is required to form 1.6 L of O2 at a temperature of 295 K and a pressure of 0.985 atm ?Express your answer using two significant figures.Η ΑΣφ.m =SubmitRequest AnswerWhat volume of O2 gas, measured at 785 mmHg and 20 °C, is required to completely react with 54.3 g of Al?Express the volume in liters to three significant figures.ΑΣΦ圖]?V =LSubmitRequest Answer

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An experiment shows that a 111 mL gas sample has a mass of 0.171 g at a pressure of 741 mmHg and a temperature of 33 °C. What is the molar mass of the gas?

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter13: Gases

Section: Chapter Questions

Problem 105AP

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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

An experiment shows that a 111 mL gas sample has a mass of 0.171 g at a pressure of 741 mmHg and a temperature of 33 °C.
SS
What is the molar mass of the gas?
ΑΣ.
?
g/mol
Submit
Request Answer
Consider the following chemical reaction:
2H2O(1) → 2H2 (g) + O2(g)
What mass of H2 0 is required to form 1.6 L of O2 at a temperature of 295 K and a pressure of 0.985 atm ?
Express your answer using two significant figures.
Η ΑΣφ.
m =
Submit
Request Answer
What volume of O2 gas, measured at 785 mmHg and 20 °C, is required to completely react with 54.3 g of Al?
Express the volume in liters to three significant figures.
ΑΣΦ
圖]?
V =
L
Submit
Request Answer

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