A student (Sam) is helping a friend (Devin) solve a stoichiometry problem. Devin needs to know how many liters of nitrogen monoxide (NO) gas are created at STP when 32.2 g of solid copper reacts with excess nitric acid. 3Cu(s) + 8HNO3 (aq) → 3Cu(NO3), (aq) + 4H2O(1) + 2NO(g) Devin knows they should put 32.2 g Cu down first, and they also know they need to convert from grams to something else. Sam provides a clue to Devin: they will need 3 conversion factors (which are empty, below). What does Devin need in order to complete the first conversion factor? Below is what Devin has so far: 32.2 q Cu O Avogadro's number The molar mass of nitrogen monoxide O The STP volume of gas (22.4 L/mol) O The molar mass of copper Coefficients from the balanced equation (molar ratio)
A student (Sam) is helping a friend (Devin) solve a stoichiometry problem. Devin needs to know how many liters of nitrogen monoxide (NO) gas are created at STP when 32.2 g of solid copper reacts with excess nitric acid. 3Cu(s) + 8HNO3 (aq) → 3Cu(NO3), (aq) + 4H2O(1) + 2NO(g) Devin knows they should put 32.2 g Cu down first, and they also know they need to convert from grams to something else. Sam provides a clue to Devin: they will need 3 conversion factors (which are empty, below). What does Devin need in order to complete the first conversion factor? Below is what Devin has so far: 32.2 q Cu O Avogadro's number The molar mass of nitrogen monoxide O The STP volume of gas (22.4 L/mol) O The molar mass of copper Coefficients from the balanced equation (molar ratio)
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter15: Solutions
Section: Chapter Questions
Problem 31CR
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Transcribed Image Text:A student (Sam) is helping a friend (Devin) solve a stoichiometry problem. Devin needs to know how many liters of
nitrogen monoxide (NO) gas are created at STP when 32.2 g of solid copper reacts with excess nitric acid.
3Cu(s) + 8HNO3 (ag)
→ 3Cu(NO3)2 (aq) + 4H2O(1) + 2NO(g)
Devin knows they should put 32.2 g Cu down fırst, and they also know they need to convert from grams to something
else. Sam provides a clue to Devin: they will need 3 conversion factors (which are empty, below).
What does Devin need in order to complete the first conversion factor? Below is what Devin has so far:
32.2 g Cu
1
Avogadro's number
The molar mass of nitrogen monoxide
O The STP volume of gas (22.4 L/mol)
O The molar mass of copper
Coefficients from the balanced equation (molar ratio)
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