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how many atoms and elements are there in C2H5OH?
A bu?er was prepared by mixing 1.0 mole of ammonia and 1.0 mole of ammonium chloride to form an aqueous solution with a total volume of 1.00 liter.
A solution contains 0.021 M Cl? and 0.017 M I?. A solution containing copper (I) ions is added to selectively precipitate one of the ions. At what concentration of copper (I) ion will a precipitate begin to form
What is the molarity of a solution made by dissolving 6.64 g of sodium acetate in water and diluting to 750. mL. (molar mass NaC2H3O2 is 82.0 g/mol.)
What is [Mn2+] when Ecell reaches 0.055 V. What are the equilibrium concentrations of the ions
The solubility of N2 in blood can be a serious problem (the "bends") for divers breathing compressed air (78% N2 by volume) at depths greater than 50 ft. Find the volume (in mL) of N2, measured at 25degrees celsius and 1.00 atm, released per liter..
The energy released during the combustion caused a 14.2 degree Celsius increase in the temperature of 200.0mL of water in the calorimeter. Compute the mass of peanut burned.
Three gases (8.00 g of methane,CH4 , 18.0 g of ethane, C2H6, and an unknown amount of propane,C3H8) were added to the same 10.0L- container. At 23.0 °C, the total pressure in the container is 4.10 atm. Calculate the partial pressure of each gas in..
Write the chemical reaction for: KH2PO4/K2HPO4 buffer solution + NaOH (aq) and Write the chemical reaction for: KH2PO4/K2HPO4 buffer solution + HCl (aq)
The largest estimate for the amount of water on the moon is currently 1000parts per million (i.e 1000g water per 1000000g of salt). if the moon is made primarily of a pyroxene mineral with formula Fe2Si2O6 what is the "formula" of the hydrate with..
Explain what is the formula of a compound that contains hydrogen as +1, sulfur as +4 and oxygen as -2? Define how to do this
suppose that 35.55 mL of permanganate solution is required to titrate 1.2055 grams of iron ammonium sulfate hexahydrate. calculate the concentration of the permanganate solution.
How many grams of acetone are in 1384 mL of a 4.01 M aqueous solution of acetone. The formula for acetone is C3H6O.
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