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What is the maximum concentration of Cd2+ that can exist in a solution in which the S2- concentration is 2.5 x 10-6? Ksp(CdS) = 8.0 x 10-27
Twenty-five pounds of gas consisting of 40% CO, and 30% H2 are placed in a cylinder 200 ft^3 in volume. What is the a) average molecular weight of the gas?
11.6 mL of 3.0 M sulfuric acid are required to neutralize the OH- in 25.00 mL of NaOH solution. What is the molarity of the NaOH solution
Balance the following equation by the half-reaction method for the pH conditions specified: H2CO (aq) + Ag(NH3)2+ (aq) ? HCO3- (aq) + Ag (s) + NH3 (aq) (basic)
Calculate the pH of a solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 M benzoic acid (Ka = 6.5 x 10-5)
Calculate the volume (in mL) of He collected at STP when 3.60 g of pure 226Ra is stored in a closed container for 135 years.
Calculate the pH for each of the following cases in the titration of .50 mL of .150 M hypochlorous acid, HCLO(aq)
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places.
a solution is prepared by mixing 50.0 ml of 0.24 m pbno32 with 50.0 ml of 1.6 m kcl. calculate the concentrations of
A sample of argon gas collected at a pressure of 761 mm Hg and a temperature of 283 K has a mass of 32.2 grams. The volume of the sample is. answer in L please.
What is the molecular formula of each compound. (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.
What is an indicator and explain how it is used in titration. Enumerate the criteria in choosing the indicator for a specific titration.
For a particular redox reaction Cr is oxidized to CrO42- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution.
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