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The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g=9.8 ~\rm m/s^2). If an object's mass is m=10.~\rm kg, what is its weight
The antibacterial agent sulfamethoxazole is an unionized acid with a pKa of 5.0. What is the ratio of this drug in buffered gastric fluid of pH 3.0. What is the percent ionized to unionized
Determine what is the exact volume of the 250-mL Erlenmeyer flask express your answer (in mL)?
A CONTAINER HOLDS 7.62L OF N2O(g) at 4.06atm in equilibrium at 25C with 5.82L of an aqueous solution of N2O(aq).
Liquid dimethyl disulfide (CH3SSCH3) flows through a pipe with a mass flow rate of 29.0 g/s. Given that the density of dimethyl disulfide
Derive an expression for the subsequent concentration of sodium chloride c in terms of c0, t, Q, and V. Make a sketch of c versus t and label the main features.
An unidentified organic compound X, containing C,H, and O was subjected to combustion analysis. When 228.4 mg of pure X was burned 627.4 mg of CO2 and 171.2 mg of H2O were obtained.
What is the molarity of the solution that was prepared by dissolving 3.2 g of sulfuric acid in water to a total volume of 500 mL
Calculate the molarity of Ba(OH)2 solution if a55.00 mL portion of this solution
what would be two examples of reductive alkylation of N-methylbenzylamine and formaldehyde
The volume of a certain gas sample is 235 mL when collected over water at a temperature of and a pressure of 698 mmHg. What will be the volume of this gas sample when measured dry at a standard pressure? The vapor pressure of water at this tempera..
The temperature of a block of copper metal (molar mass 63.55 g mol-1) fell by 8.52 K when the copper block released 64.5 J of heat. What is the mass of the copper block?
Calculate the molar solubility of calcium hydroxide in a solution buffered at each of the following pH's.
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