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When 75.0 grams of ammonia, 90.0 grams of carbon dioxide and 61.0 grams of water are reacted to form ammonium carbonate, what is the limiting reactant and how many grams of product will be formed?
What is the temperature change If 84 joules of heat are added to a pure gold coin with a mass of fifteen grams? It is given that the Specific heat capacity of Au= 0.128
The rate at which an Australian tree cricket chirps is 184 per minute at 35oC, but only 50 chirps per minute at 10oC. Assuming that cricket chirping follows the Arrhenius Law, what is the activation energy for the cricket chirping (in kJ/mol)? Ent..
The liberated NH3(g) is absorbed by adding 50.00 mL of H2SO4(aq), which is more than enough. The excess acid requires 19.90 mL of 0.5510 M NaOH for its complete neutralization. What is the percentage of protein in the meat?
Predict what product favored reaction will occur when potassium metal is dropped into liquid water. Write a balanced chemical equation for the process and explain breifly how you made your predicition.
For the endothermic equilibrium CaCO3(s) + NH4^(+)(aq) + SO4^(2+)(aq) -> CaSO4(s) + NH3(g) + HCO3^(-)(aq), explain the best set of changes to apply in order to increase product yield effectively.
If 25.0 grams of potassium chlorate decomposes, how many grams of gas are released as a product?
if you burn 33.7g of hydrogen and produce 301 g of water, how much oxygen reacted?
If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium? Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC
Write a balanced equation between citric acid (RCOOH) and sodium hydrogen carbonate
calculate the specific heat of a substance if a 35 gram sample absorbs 28 joules as the tempature is raised from 292 kelvin to 313 kelvin.
Identify the element oxidized and reduced in the following redox rxn. Also indicated the number of electrons lost/gained by each atom.
what precipitate would form if calcium chloride, 5% dextrose, 0.9% sodium chloride, and potassium phosphate
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