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You have a sample of CO2 in flask A with a volume of 30.0 mL at 20.7 oC and a pressure of 101 kPa. To find the volume of flask B, the gas is transferred to it where the pressure is 68.5 kPa at a temperature of 27.9 oC. What is the volume of flask B?
Calculate the equilibrium constant, Ka for the acid, HA if, at equilibrium, the pH of a 2.3 M solution of HA is 1.62
An unknown organic compound is mixed with 0.5190 g of naphthalene crystals to give a mixture having a total mass of 0.5959 g. The mixture is heated until the naphthalene melts and the unknown substance dissolves.
If 116g of butane burns in the presence of 320g of oxygen how much carbon dioxide will be produced
Predict just the first step that might occur between the polyphenol shown below and Na2CO3
How much heat is required to warm 227 g of ice from -44.5°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C.
Describe briefly four types of batteries. In your description, include the redox reactions
Will a precipitate of Cu(OH)2 form when 18.00 mL of 0.010 M NaOH is added to 1.000 L of 0.010 M CuCl2
Calculate the kg of fuel used for 100 kg mol of outlet ?ue gas and the kg mol of air used. (Hint: First calculate the mol O2 added in the air, using the fact that the N2 in the ?ue gas equals the N2 added in the air. Then make a carbon balance to ..
An unknown gas effuses through a porous barrier at a rate that is 0.752 times the rate of Ar (g) under the same conditions. Which of the following is the unknown gas. Cl2 (g) He (g) O2 (g) N2 (g) H2 (g)
Describe the procedure for preparation of 250 cublic cm of aqueous sulphamic acid of accurately known concentration.
Formic acid, shown below, is a monoprotic acid, circle the acidic hydrogen. write the formula of the conjugate base after the acidic hydrogen is lost?
Calculate the amount of energy present in the following photons and find the region of electromagnetic spectrum for each.
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