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Radda [10]
2 years ago
5

Values of R, the ideal gas constant, and the ideal gas equation are given below. Use these to solve the problems.

Chemistry
1 answer:
lesya [120]2 years ago
3 0

Answer:

183 K

General Formulas and Concepts:

<u>Chemistry - Gas Laws</u>

Combined Gas Law: PV = nRT

  • P is pressure
  • V is volume (in Liters)
  • n is amount of moles
  • R is gas constant - 0.0821 \frac{L \cdot atm}{mol \cdot K}
  • T is temperature (in Kelvins)

Explanation:

<u>Step 1: Define</u>

10.0 L

3.00 mol H₂

4.50 atm

<u>Step 2: Find Temperature</u>

  1. Substitute [CGL]:                    (4.50 \ atm)(10.0 \ L) = (3.00 \ mol)(0.0821 \frac{L \cdot atm}{mol \cdot K})(x \ K)
  2. Isolate temperature <em>x</em>:                                                                                    \frac{(4.50 \ atm)(10.0 \ L)}{(3.00 \ mol)(0.0821 \frac{L \cdot atm}{mol \cdot K})} = x \ K
  3. Rewrite:                                                                                                           x \ K = \frac{(4.50 \ atm)(10.0 \ L)}{(3.00 \ mol)(0.0821 \frac{L \cdot atm}{mol \cdot K})}
  4. Evaluate:                                                                                                         x = 182.704 \ K

<u>Step 3: Check</u>

<em>Round to the nearest whole number.</em>

182.704 K ≈ 183 K

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Answer:

\boxed {\boxed {\sf 110.98 \ g/mol}}

Explanation:

The molar mass is the mass of a substance in grams per mole.

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