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Dissolving 3.00g of an impure sample of calcium carbonate in hydrochloric acid produced .656L of carbon dioxide (measured at 20.0 degrees Celcius and 297mmHg). Calculate the percent by mass of calcium carbonate in the sample.
The direction I was headed with this is trying to calculate the molality with what I have here and I used a 1:1 ratio for the C2H6O2 and the water, but that gives me .06206 kg/mol. What is the boiling point of the radiator fluid
In an experiment to determine the formula of a salt M2( SO4)3 x XH2O a sample of 2.239g of the sample was reacted with BaCl2. After filtration and drying the sample of BaSO4 weight 3.329g
what is the molar concentration of nitrous acid in a solution with a volume of 276 mL containing 17.1 grams of hydrogen nitrite?
Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s-1. What is the half-life for this reaction
show the photoelectron spectrum of N2.Assign short and long progression band.. which one is adiabatic band. give your explanation on basis of FCP. No google copy- paste thing please.
n2go2glt-gt2nog kc 1.7x10-3calculate the equilibrium concentrations if the initial concentrations are 2.31 m n2 and
calculate the minimum volume in litres of aqueous sodium hypochlorite solution 12.5 12.5g100ml that would be needed to
The equilibrium constant Kp is measured (at an unspecified temperature) to be 0.66 for the reaction:
A buffer that is 0.210 M in acid, HA, and 0.172 M in the potassium salt of its conjugate base, KA, has a pH of 4.66. What is the pH of the buffer after 150. mL of 0.359 M LiOH is added to 0.950 L of this buffer? Assume that the volumes are additiv..
a sample of cl2 gas at a pressure of 645 mmhg is transferred to a new container having a volume one-third of the
A 100 liter air tank housed in a gas station ruptured suddenly and air originally at 5atm escaped to the surroundings at 1atm and 25°C. Find ?S of air, had it been let out slowly in a reversible manner
the molar mass is not identical, the molar mass of Br2 is only 159.80 g/mol compared to 162.35 g/mol for ICl F: ICl is polar while Br2 is nonpolar
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