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Problem- What is the molar solubility of AgCl in 0.40 M NH3? Ksp for AgCl is 1.8*10^-10 and Kf for Ag(NH3)2+ is 1.7*10^7.
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Benzoic acid, HC7H5O2, is a weak monoprotic acid. 10.81 g of sodium benzoate, NaC7H5O2, which is the conjugate base, is placed in a 0.500 L beaker and its pH is measured. It is found the pH of the solution is 8.69.
A 12V automotive lead-acid battery. Each anode/cathode pair in this schematic cutaway produces a voltage of about 2V. Six pairs of electrodes are connected in series, producing12V.
A reagent is sold a s a solution that is 60% by mass. What is the molality of the solution if the molar mass of the reagent is 90.0g
If it takes 91.7 min for the concentration of a reactant to drop to 20% of its initial value in a first-order reaction, what is the rate constant for the reaction in the units min-1? min-1
When sodium carbonate dissolves in water, the carbonate ion CO3^2- acts as a base. write a balanced equation for the reaction of the carbonate ion with water.
Which of the following statement is true. and why. a. Exothermix processes decrease the enthrophy of the surroundings. b. Enthrophy is not temperature dependent
2 O3 (g) ? 3 O2 (g) (rate expression)
Utilizing the concentration of the stock stearic acid solution and the volume of one drop, Compute the number of moles of stearic acid in the monolayer film
How much water must be added to 516 mL of 0.181 M HCl to produce a 0.128 M solution? (Assume that the volumes are additive.)
The value of nD20 for a mixture can be approximatedas the weighted average of the refractive indices ofthe individual components. For a heptane/alpha-pinene mixture nD20 (mixture)=VheptanenD20 (heptane) + VpinenenD20 (pinene)
Compute and then plot the concentration of oxygen each day for a period of five days starting with a concentration of 8 mg/L. Utilize a rate constant of 0.35 d-1.
The osmotic pressure of blood at normal body temp of 37 deg C is 7.65 atm. Sometimes it is necessary to add a saline (NaCl) solution by intravenous injection to a patient in the ER.
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