What mass of Gelatin is needed to make 50. mL of a 1.0 Mgelatin solution?

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

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure