Calculate the concentrations of h2so4, hso." and h ions in a 0.14 mol l aqueous sulfuric acid solution at 25°c. the acidity constants are kat " and k2 = 0.013. [6 marks] (b) (1) 600 s after initiation of a first order reaction 48.5% of the initial reactant concentration remains present. what is the rate constant for this reaction? [2 marks] (1) how long will it take until 99% of the reactant have reacted?

1.aluminum chloride (alcl3), and sodium hydroxide (naoh) can react to form aluminum hydroxide (al(oh)3) and sodium chloride (nacl).    you have 13.4 g of aluminum chloride and 10.0 g of sodium hydroxide. answer the following questions: •what is the balanced equation for this reaction? •if you use all 13.4 g of aluminum chloride, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •if you use all 10.0 g of sodium hydroxide, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •how many grams of aluminum hydroxide will actually be made?     which reagent is limiting? explain your answer.

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?

The volume of a single vanadium atom is 9.29×10-24 cm3. what is the volume of a vanadium atom in microliters?