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how many liters of H2 would be formed at 628 mm Hg and 14 degrees celcius if 22.5g of zinc was allowed to react
if you used 8900 kilojoules you expend in energy in one day to heat 49000g of water at 19 C what would be the rise in temperature.
If 101 g of CaO and 261 g of NH4Cl are mixed, what is the maximum possible yield of NH3?What mass of the excess reactant remains after the maximum amount of ammonia has been formed?
In 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a national record at that time.
150.g of NaCl completely dissolves (producing Na+ and Cl- ions) in 1.00k of water at 25.0C. The vapor pressure of pure water at this temperature is 23.9torr.
When maleic acid is heated to about 100C it forms maleic anhydride, however fumaric acid requires a much higher temperature (250-300C) before it dehydrates
Lyzozyme(The protein) unfolds at a transition temperature of 75.5 degree celsius, the standard enthalpy of transition = 509 kJ/mol. Compute the entropy of unfolding of this protein at the temperature of twenty five degree celsius
A 5.0 ml sample of vinegar was titrated with 7.2 ml of 0.55 M NaOH. if the density of vinegar solution is 1.00g/ml, what is the mass percent of acetic acid present.
Large quantity of ammonia are burned in the presence of platinum catalyst to give nitric oxide as d first step in the preparation of nitric acid.
A 4.000-g sample of the metal nitrate M(NO3)2 was dissolved in water and treated with excess aqueous sodium sulfate. The sulfate salt that formed weighed 3.318 g. Determine the identity of the metal.
A 97 gram solution of silver nitrate contains 14 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
Compute KP at this temperature If the pH of an aqueous solution is 8.23, what are the hydrogen- and hydroxide-ion concentrations of this solution?
Calculate the mass (g) of pure Na3AsO4 (s) and volume (mL) of 1.50 M HCl that are required to make 100.0 mL of a buffer solution at a pH of 6.80 and an H2AsO4-(aq) concentration of 0.100 M
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