A mixture of 0.0375 g of hydrogen and 0.0185 mol of oxygenin a closed container is sparked to initiate a reaction. How manygrams of water can form? Which reactant is in excess, and how many grams of it remain after the reaction?

3. A student mixes 100.0 mL of a 0.100 M solution of potassium phosphate with 100.0 mL of a 0.125 M solution of copper (II) sulfate and obtains a blue solid. (a) Write the balanced chemical equation for the reaction including physical states. (b) Determine the limiting reagent. (c) Calculate the number of moles of the excess reagent after the reaction is completed. Record servation

in a combustion reaction 46g of ethonal reacts with 96g of oxygen

Suppose a 500. mL flask is filled with 0.80 mol of CH,, 0.20 mol of CS, and 1.7 mol of H,. This reaction becomes possible: CH, (g) +2H,S(g) –CS,(g)+4H,(g) Complete the table below, so that it lists the initial molarity of each compound, the change in molarity of each compound due to the reaction, and the equilibrium molarity of each compound after the reaction has come to equilibrium. Use x to stand for the unknown change in the molarity of CH,. You can leave out the M symbol for molarity. 4' CHA H, S Cs, H, initial change equilibrium

If a solution containing 38.23 g of lead(II) chlorate is allowed to react completely with a solution containing 6.256 g of sodium sulfide, how many grams of solid precipitate will be formed? mass of solid precipitate: g   How many grams of the reactant in excess will remain after the reaction? mass of excess reactant: g   Assuming complete precipitation, how many moles of each ion remain in solution? If an ion is no longer in solution, enter a zero (0) for the number of moles. Pb2+:  mol ClO–3: mol Na+: mol S2−:  mol

2. 0.349 g of CaCl2•2H2O and 0.698 g of NazCO; are dissolved in 100 mL of water to form a solution. a. What is the limiting reactant? b. How many grams of CaCO; will precipitate? c. How many grams of the excess reactant remain after the reaction has gone to completion?

How many moles of Pb(ONO3)2 are required to react comptely with 2.40 mol NaCl?

0.250g of HI is dissolved in 300. mL of a .00520 M solution of Ca(OH)2. (Assume this does not change the volume) The dissolved salts then proceed to react. What is the limiting reactant? How many grams of water are produced from this reaction?

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