Ivey Nugent asked 3/2/2011 Sulfuric acid dissolves aluminum metal according to the following reaction: 2Al(s)+3H2SO4(aq)--->Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 15.9g.What minimum mass of H2SO4(in grams) would you need?
Ivey Nugent asked 3/2/2011 Zinc(II)sulfide reacts with oxygen: 2ZnS(s)+3O2(g)--->2ZnO(s)+2SO2(g) A reaction mixture initially contains 4.6 mol ZnS and 7.2 mol O2. Once the reaction is completely as possible, what amount (in moles) of the excess reactant is left?
Jzy case asked 2/25/2011 A) What mass of Potassium Hydrogen Phthalate (KHP) will just neutralize 21 mL of 0.20 M NaOH?
Ivey Nugent asked 2/25/2011 What mass of silver nitrate (AgNO3) is required to make 250mL of a .125M solution of silver nitrate?
Ivey Nugent asked 2/19/2011 Determine the empirical formula of serotonin if it is known to be 68.2% by mass carbon, 6.86% by mass hydrogen, 15.9% by mass nitrogen, and 9.08% by mass oxygen?
cindy slade asked 2/8/2011 An alcohol is 60% carbon, 13.33% hydrogen and 26.67% oxygen. A.) what is the simplest molecular formula? B.) by another method, the molecular weight was found to be 60. What is the molecular formula
Ivey Nugent asked 2/5/2011 An automobile gasoline tank holds 21 kg of gasoline. When the gasoline burns, 85 kg of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
Kaja Nall asked 1/25/2011 Describe three ways that oxygen gas is removed from the atmosphere and used?
Akram Anjum asked 1/10/2011 How can I test this Hypothesis:How does temperature affect the rate of an enzyme-substrate reaction?
