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Calculate the Calorimeter Constant if 25 g of water at 50 C was added to 25 g of water at 25C with a resulting temperature of 35 C?
Determine the standard reaction enthalpy for the partial combustion of methane to carbon monoxide according to the following reaction:
Write the overall cell reaction of each. Identify the anode and cathode of each. Arrange the three metals in order of decreasing ease of oxidation(most easily oxidized metal first
Consider the reaction CaCN2 + 3H2O ->CaCO3 + 2NH3 . How much NH3 is produced if 187 g of CaCO3 are produced?
A green leaf has a surface area of 2.10 cm^2. If solar radiation is 1150 W/m^2, how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
Luminol is a reagent used to detect blood at crime scenes. A technician prepares a stock solution by adding 6.0 g of luminol (molar mass=177 g/mol) to 50.0 mL of H2O.
A quanity of oxygen gas was collected over water at 30 c in a 475 mL container. The pressure in the container was measured to be 105 kPa. How many grams of oxygen gas were collected?
How many molecules of carbon dioxide are produced when 123 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
Consider a solution formed by mixing 48.0 mL of 0.100 M H2SO4, 36.0 mL of 0.100 M HOCl, 25.0 mL of 0.200 M NaOH, 2 mL of 0.100 M Ca(OH)2, and 10.0 mL of 0.150 M KOH. Calculate the pH of this solution.
CaCN2 + 3 H2O -> CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25M . The concentration of Cu^2+ in one of the half-cells is 1.5×10-3 . What is the concentration of Cu2+ in the other half-cell?
A voltaic cell is based on the reaction Sn + I2 = Sn2+ + 2I-.
How much work is done in kilojoules for the reaction of 6.40 of acetylene at atmospheric pressure if the volume change is -2.76.
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