Consider the following reaction: NH4HS(s)⇌NH3(g)+H2S(g)An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]= 0.272 MM and [H2S]= 0.355 MM. You may want to referenceWhat is the value of the equilibrium constant (Kc) at this temperature?

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Apump contains 0.5 l of air at 203 kpa. you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate