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A solution is made by dissolving 26.42g of (NH4)2SO4 in enough H2O to make 50.00mL of solution.
a. What is the molar mass of (NH4)2SO4?
b. What is the molarity of this solution?
Calculate the order of the reaction with respect to reactant C, the reaction rate constant, the overall order of reaction, and write the rate law for the reaction.
Draw a Lewis structure for acyl chloride R-C(=O)-Cl and state its 3D-structure around the central atom (C). R is an acyl substituent.
The concentration of Mg2+ in seawater is 0.052 M. What is the pH when 95% of the magnesium ions will be precipitated as the hydroxide salt. (Ksp, Mg(OH)2 is 8.9 x 10-12).
Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (CH3)3N=4.19 at 25 degrees C
Gold can be hammered into extremely thin sheets called gold leaf. If a 202-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft multiplied by 1.0 ft, what is the average thickness of the sheet in meters?
An aqueous solution of nickel acetate is electrolyzed for 3 hours with a 1.8 ampere current. What mass of nickel is produced?
A quantity of HI was sealed in a tube, heated to 425C, and held at this temperature until equilibrium is reached. The concentration of HI in the tube at equilibrium was found to be 0.0706 moles/liter
What are the concentrations of OH- and H in a 0.00075 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation.
A 50.0 ml sample of 0.100 M HNO3 is titrated with 15.0 ml of 0.200 M NaOH. What is the pH of the resulting solution, a) 1.00
A 0.20M of acetic acid, CH3COOH, at a temperature of 25degC has pH of 2.73. Calculate the hydrogen ion concentration
Determine an expression for the rate of decomposition in terms of elementary reaction rate constants and reactant and productconcentrations. What is the reaction order with respect toethylene epoxide
the resulting solution is analyzed in a sample container that is 1dm long? The specific rotation of (R)-2-butanol is -13.9 degrees mL g-1dm-1.
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