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Explain what is the volume occupied by 29.4g of argon gas at a pressure of 1.20atm as well as a temperature of 456K? Explain would the volume be different if it was 29.4g of helium?
Calculate the solubility of N2 in water at 25 oC in moles/L if the partial pressure of N2 in the headspace above a water sample is 1.65 atm
a 0.0100 l sample of h2so4 sulfuric acid was titrated with 0.150 m naoh. it took 23.3 ml of naoh from the buret --
What is the percent yield of the Sodium borohydride reduction experiment if the final weight of the product is .668 grams, the melting point of the final product is138-141C and there is no participate in the final solution?
A reaction has a rate constant of 0.0686 sec-1; how long will it take (in minutes) until 0.198 mol/L of the compound is left, if there was 0.715 mol/L at the start? (give answer to 3 sig figs using E notation)
a sample of gas is collected over water at a temperature of 28.0degc when the barometric pressure reading is 742.5
The half-life of C-14 is 5730 years. A fossil was analyzed and determined to have a carbon-14 level that is 50.0 % that of living organisms. How old is the fossil?
If 5.0 grams of potassium reacts with 2.24 liters of oxygen at STP what is the limiting reagent. After the reaction, how much excess reagent is left
Explain what volume (mL) of a 7.55M Na2CO3 solution would be necessary to prepare 336.00mL of a 9.60%w/v Na2CO3 solution
The mass of the Earth's Moon is 7.35 x 10^22 kg. what is the mass expressed in megagrams , Mg?
Which of the following, when added in equal molar amounts to the AgOH/water mixture, will lead to the greatest concentration of dissolved Ag+ at equilibrium?
A sample of methane gas (CH4) at 18.8 oC is heated. The pressure increases from 1.78 atm to 2.46 atm, and the volume of the sample changes from 4.09 L to 1.89 L.
A sample of chlorine gas at a pressure of 420 mm Hg and in a volume of 3.50 L was heated from 18.0oC to 45.0oC after being transferred to a container of volume 2.35 L. The pressure in this new container should be about
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