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At STP, 50.0 mL of a gas weighs 0.301g and is found to be 47.4% sulfur and 52.6% chlorine. What is the molecular formula of the gas?
What mass of carbon dioxide (in kg) is produced upon the complete combustion of a typical tank of propane containi 18.9 L. The density of the propane is 0.621 g/ mL Hint: begin by writing a balanced rquation for the combustion reaction.
The final temperature of the water in the calorimeter was 24.2 deg C. What is the heat capacity of the calorimeter?
Calculate the total mass of the protons and electrons in 19/9F. Use 1.007825 amu as the mass of 1/1H(mass of a proton and an electron). Express your answer in atomic mass units to 6 significant figures
The calorimeter constant is 27.8J/°C. Write the balanced chemical equation and calculate the amount of heat released by the experiment
If all the energy obtained from burning 1.29 pounds of propane (fuel value is 11.09 kcal/g) is used to heat 124.5 kg of water at an initial temperature of 21.5 °C, what is the final temperature
databases are an excellent tool for effectively using customer relationship marketing crm but there are three problems
The soution in contact with the graphite electrode consists of dissolved Sn(NO3)2. The solution in contact with the copper electrode consists of dissolved CuNO3.
The concentraion of comercially availble concentrated nitric acid is 70.0 percent by mass, or 15.9M. Calculate the density of the solution (Please explain in detail how to find density) Density in g/mL
Calculate the overall energy changes (in kJ/mol) for the formation of MgF and MgF2 from their elements. The lattice energy for MgF2 is + 2952 kJ/mol.
n basic solution it gives ClO3- and ClO2- ions. 2ClO2(aq) + 2OH-(aq) ? ClO3-(aq) + ClO2- (aq) + H2O. To obtain the rate law for this reaction, the following experiments were run and, for each, the initial rate of the reaction of ClO2
What is the molar mass of a gas if 1.15 g of gas has a volume of 225 mL at 0 degrees C and 1.00 atm (STP)
What are the concentrations of the various species of the glutamic acid system in a solution which is at physiological pH 7.40, and a total concentration for all forms equatl to 5.00x10^-3M
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