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what is the mass in grams in 2.28 mol of each of the following: a) N2, b)SO3, c)C3H6O3, d)Mg(HCO3)2, e)SF6. Please use significant figures.
she measures the freezing point of the solution to be 2.7 oC; that of pure cyclohexane is 6.5 oC. cyclohexane has a Kf of 20.2 oC/m. caclculate the molar mass of the compound
If 3.67 g of CO2 (MW = 44 g/mol) gas is introduced into an evacuated 3.58 L flask at 65 deg. C, what is the pressure inside the flask?
The action of bacteria on meat and fish produces a poisonous compound called cadaverine. As its name and origin imply, it stinks!
how long it will take the same ammount of gaseous I2 to effuse from the same container under identical conditions.
calculate the molality, molarity, and mol fraction of HF in a solution made by dissolving 5.0g of HF in 250g of water
A sample of 54.7 g of HCl gas is dissolved to make 1L of solution. What is the molarity of the solution?
The rate constant of a reaction is 4.7 10-3 s-1 at 17°C and the activation energy is 33.6 kJ/mol. What is the value of k at 75°C.
what should this person do from this point on to get a reasonable yield of 1-octanol?
Calculate the pH of a buffer formed by mixing 60. mL of 0.10 M lactic acid with 88 mL of 0.24 M sodium lactate.
vitamin tablet contains 125 mg of vitamin C (C6H8O6). How many vitamin C molecules are contained in the tablet?
A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the mass
Irradiation of di-t-butyl ketone in a solution of carbon tetrachloride produces pivaldehyd (2,2-dimethylpropanal), chloroform, isobutene, t-butyl chloride, and carbon Monoxide. Suggest a mechanism which accounts for the formation of each product.
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