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A 45- piece of ice at 0 is added to a sample of water at 20. All of the ice melts and the temperature of the water decreases to 0. How many grams of water were in the sample?
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16.
what is heat capacity. write a simple procedure for determining the heat capacity of your calorimeter
how many liters of water vapor can be produced if 13.3 liters of methane gas ch4 are combusted if all measurements are
What is the the structures of both products and how can you distinguished them using IR spectroscopy?
The rate constant for a certain reaction is = 5.70×10-3 s^-1. If the initial reactant concentration was 0.650 M, what will the concentration be after 14.0 minutes.
How many mL of a 2.0 M solution of NaOH would bve needed in order to have 0.500 mol of NaOH? (Molar mass of NaOH is 40.0 g/mol)
Calculate the equilibrium partial pressures of the reactants and products if the initial pressures are Ppcl5 = .5400 atm and Ppcl3 =.430 atm
During a period of discharge of a lead-acid battery, 402g of Pb from the anode is converted into PbSO4.
The net reaction is C6H1206(s) -> 2 C2H50H(l) + 2 C02(g) Calculate the mass of glucose required to produce 1.00 L of CO2 measured at P = 1.00 atm and T = 300. K.
A 2 mL sample was taken of a solution of barium iodate at 10 degree C. the sample was mixed with 2 mL of 0.5 M KI and 2 mL of 1M HCl. The transmittance of the mixture was read and compared to a calibration curve which indicated a concentration of ..
if the initial water level in the graduated cylinder is 21.2 ml and the level rises to 27.7 ml after the object is placed in the cylinder, what is the volume of the object?
Calculate the density of a sphere that has a circumference of 2.00 inches and weighs 100.0 gms. (c = 2pi r) (V = 4/3pi r^3)
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