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Solution: A certain anesthetic contains 64.9 percent C, 13.5
Chapter 5, Problem 5.49(choose chapter or problem)
A certain anesthetic contains 64.9 percent C, 13.5 percent H, and 21.6 percent O by mass. At 120C and 750 mmHg, 1.00 L of the gaseous compound weighs 2.30 g. What is the molecular formula of the compound?
Questions & Answers
QUESTION:
A certain anesthetic contains 64.9 percent C, 13.5 percent H, and 21.6 percent O by mass. At 120C and 750 mmHg, 1.00 L of the gaseous compound weighs 2.30 g. What is the molecular formula of the compound?
ANSWER:Step 1 of 4
According to ideal gas law, the number of moles can be calculated by the following formula.
........................(1)
Rearrange the formula(1)
.......................(2)
Here,
P = pressure
V = Volume
n = Number of moles
R = Gas constant
T = Temperature.