Calculate the missing value: V1=.25 L ; T1 = ??? ; V2 = .4 L ; T2 = 298 K (Which Law is this?)
A) 22.4 L (Charles's Law)
B) 1.6 atm (Boyles Law)
C) 300 K (Gay-Lussac's Law)
D) 200 K (Charles's Law)

2h2s + 3o2 2so2 + 2h2o which option gives the correct mole ratios? h2s: so2 = 2: 2 and o2: h2o = 3: 2 h2s: so2 = 2: 3 and o2: h2o = 3: 2 h2s: so2 = 4: 4 and o2: h2o = 5: 4 h2s: so2 = 4: 6 and o2: h2o = 4: 4

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

How many molecules are in 6.0 moles of methane