ow many grams of sodium are needed to produce 46.3 L of hydrogen gas according to the following reaction at 25 °C and 1 atm? Odium (s) + water(e)sodium hydroxide (aq) + hydrogen (g) Submit g sodium Show Approach Hide Tutor Steps TUTOR STEP The first step when performing any stoichiometry problem is to write the balanced chemical equation. That is given here. 2Na(s) + 2H₂O(l) →→→→→→ 2NaOH(aq) + H₂(g) < Next> (1 of 4) ubmit Answer Try Another Version 10 item attempts remaining Approach Gas properties involve four variables: n: amount of gas, in moles V: volume of gas, in liters P: pressure of gas, in atmospheres T: temperature of gas, in kelvins If the values of V. P and T are known, the amount of a gas present, n (in moles), can be calculated. PV R = 0.08206 RT L atm K mol n= X In this problem, gas properties for a product are given and the mass needed to produce it asked for. Step 1. Write the balanced chemical equation. Step 2. Use the ideal gas law to determine the amount (mol) of product needed. Step 3. Use the balanced chemical equation to determine the amount (mol) of reactant needed. Step 4. Use the molar mass of the reactant to calculate mass (g) from amount (mol).
ow many grams of sodium are needed to produce 46.3 L of hydrogen gas according to the following reaction at 25 °C and 1 atm? Odium (s) + water(e)sodium hydroxide (aq) + hydrogen (g) Submit g sodium Show Approach Hide Tutor Steps TUTOR STEP The first step when performing any stoichiometry problem is to write the balanced chemical equation. That is given here. 2Na(s) + 2H₂O(l) →→→→→→ 2NaOH(aq) + H₂(g) < Next> (1 of 4) ubmit Answer Try Another Version 10 item attempts remaining Approach Gas properties involve four variables: n: amount of gas, in moles V: volume of gas, in liters P: pressure of gas, in atmospheres T: temperature of gas, in kelvins If the values of V. P and T are known, the amount of a gas present, n (in moles), can be calculated. PV R = 0.08206 RT L atm K mol n= X In this problem, gas properties for a product are given and the mass needed to produce it asked for. Step 1. Write the balanced chemical equation. Step 2. Use the ideal gas law to determine the amount (mol) of product needed. Step 3. Use the balanced chemical equation to determine the amount (mol) of reactant needed. Step 4. Use the molar mass of the reactant to calculate mass (g) from amount (mol).
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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Transcribed Image Text:How many grams of sodium are needed to produce 46.3 L of hydrogen gas according to the following reaction at 25 °C and 1 atm?
sodium (s) + water(e)→→→→→sodium hydroxide (aq) + hydrogen (g)
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TUTOR STEP
g sodium
Show Approach Hide Tutor Steps
The first step when performing any stoichiometry problem is to write the balanced chemical equation. That is given here.
2Na(s) + 2H₂O(l) →→→→→→→ 2NaOH(aq) + H₂(g)
Next> (1 of 4)
Submit Answer
Try Another Version
10 item attempts remaining
Approach
Gas properties involve four variables:
n: amount of gas, in moles
V: volume of gas, in liters
P: pressure of gas, in atmospheres
temperature of gas, in kelvins
If the values of V, P and T are known, the amount of a gas present, n (in moles), can be calculated.
PV
RT
R = 0.08206
L atm
K mol
In this problem, gas properties for product are given and the mass needed to produce it asked for.
Step 1. Write the balanced chemical equation.
Step 2. Use the ideal gas law to determine the amount (mol) of product needed.
Step 3. Use the balanced chemical equation to determine the amount (mol) of reactant needed.
Step 4. Use the molar mass of the reactant to calculate mass (g) from amount (mol).
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