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The temperature of a block of copper metal (molar mass 63.55 g mol-1) fell by 8.52 K when the copper block released 64.5 J of heat. What is the mass of the copper block?
Calculate the specific heat capacity of this sample of mercury if The amount of energy required to heat 2.00 grams Hg from 50 degrees C to 85 degrees C is 9.87 J.
A canister is filled with 320 g of ice and 100 gm of liquid water, both at 0 C . The canister is placed in an oven until all the H_2O has boiled off and the canister is empty.
aluminum and oxygen react to form aluminum oxide. How many L of oxygen at 296K and 1.4 atm of pressure are necessary to form 3.25g of aluminum oxide.
Using a sample of 30.0 mL of Kr(g), is at 25°C and 756 mmHg. Calculate the new volume if the temperature is decreased to -125°C and pressure is decreased to 325 mmHg .
if the initial concentration of the reactant in a first-order reaction A-> products is 0.64 mol/L and the half-life is 30.0 s. what is the concentration after 60 s.
Determine the mole fraction of sodium chloride(NaCl) in the solution if this solution is formed by mixing 17.0 grams of sodium chloride NaCl in 85.0 grams of Water?
HCl + NaOH = NaCl + H2O If 200 mL of a .20 M HCl solution is consumed in the above reaction, how many grams of each product would be produced.
At a certain temperature, the equilibrium constant for the reaction 2HI(g)39. At a certain temperature, the equilibrium constant for the reaction 2HI(g) H2(g) + I2(g) is 0.49.
How many carbon dioxide in kilograms is produced upon the complete combustion of 18.9 L of propane(Many home barbecues are fueled with propane gas
The water level in a graduated cylinder initially at 211 rises to 282 after a piece of lead is submerged. What is the mass in grams of the lead.
Determine the value of the solubility-product constant if solubility of T3U2 =4.24× 10-20 mol/L.?
A solution is prepared by dissolving 396g of sucrose (C2H22011) in 624g of water. What is the vapor pressure of this solution at 30 degrees.
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