There are 8.16 × 10-³ moles of CO2 gas at 100°C with a volume of 250 mL at 760 mm Hg.
HOW TO CALCULATE NUMBER OF MOLES:
The number of moles of a sample of gas can be calculated using the following formula:
PV = nRT
Where;
- P = pressure of gas (atm)
- V = volume (L)
- n = number of moles (mol)
- R = gas law constant (0.0821 Latm/molK)
- T = temperature (K)
According to this question;
- P = 760mmHg = 1 atm
- T = 100°C = 100 + 273 = 373K
- V = 250mL = 0.250L
- n = ?
1 × 0.250 = n × 0.0821 × 373
0.250 = 30.62n
n = 0.250 ÷ 30.62
n = 8.16 × 10-³mol
Therefore, there are 8.16 × 10-³ moles of CO2 gas at 100°C with a volume of 250 mL at 760 mm Hg.
Learn more about number of moles at: brainly.com/question/4147359
Answer:
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The answer to this question would be True.
Answer:
Explanation:
pH = 12
[H⁺] = 10⁻¹²
[OH⁻¹ ] [H⁺] = 10⁻¹⁴
[OH⁻¹ ] = 10⁻²
NaOH = Na⁺¹ + OH⁻¹
NaOH is a strong base so it dissociates 100%
[OH⁻¹ ] = 10⁻²
molarity of NaOH = 10⁻² M
= .01 M .
