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0.22 g sample of volatile compound , containing C,H and Cl only on combustion in O2 gave 0.195 g CO2 , and 0.0804 g H2O . If 0 .12 g of the compound occupied a volume of 37.24 ml at 105 oc and 768 mm Hg pressure , calculate molecular formula of compound.
The professed "D-line" of the sodium emission spectrum has a wavelength of 5893 Angstroms. Presuming the emission is due to an electron transition between two consecutive energy levels, compute the energy levels involved
Lead metal is added to 0.100M Cr3+(aq), Pb(s) + 2Cr3+(aq) -> Pb2+(aq) + Cr2+(aq)
What is the value of x in the formula for the hydrate? (hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate compound equals the moles of anhydrous compound)
0.74 L of a 0.41 M solution is diluted to a final volume of 3200 mL. What is the resultant molarity?
How many grams of sodium bicarbonate and sodium carbonate, respectively, are needed to make 3 liters of 0.075 M buffer, pH 10.500
What is the difference between the virial equation of state and the SRK equation of state? When would you use one versus
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.80 g of sodium carbonate is mixed with one containing 5.43 of silver nitrate.
Gas in a tank contains a poison at a concentration (CT), but the gas is leaking into the surrounding room at a rate of T cm3/min. Meanwhile, an air conditioner brings fresh air into the room at a rate of A cm3/min.
a solid,is thought to be either zinc or lead(2)nitrate.how are we going to determine the identity of the solid?
What is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants?
Calculate the concentrations of all species present, the pH, and the pecent dissociation of HCN
what volume will a 300.0 mL sample of gas at STP occupy when the pressure is doubled at constant temperature
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