Question 4 10 pts
P-32, a radioisotope used to treat leukemia, has a half-life of 14.3 days. If a sample contains
8.0 mg of P-32, how many milligrams of P-32 remain after 42.9 days?
O 0.50 mg
4.0 mg
1.0 mg
3.0 mg
2.0 mg
Question 5
10 pts

How is the way a mixture is combined different from how a compound is combined?

How do you determine the percent yield of a chemical reaction

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.