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captain kirk of the starship enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship. the combination is the pH of solution A, descibed below, followed by the pH of solution C. (example: if the pH of solution A is 3.47 and that of solution C is 8.15, then the combination to the safe is 3-47-8-15.) the chemist must determine the combination using only the information below (all solutions are at 25.0 Celcius):
solution A is 50mL of a 0.100M solution of the weak monoprotic acid HX
solution B is a 0.0500M solution of the salt NaX. it has a pH of 10.02
solution C is made by adding 15.0mL of 0.250M KOH to solution A
what is the combination of the safe?
Maria wants to plant a small tomato garden in her yard. She bought 25 tomato plants, and she has read that ideally tomatoes are planted in a square grid
What exactly is the reduction of alkynes? I just understand that it is a method for synthesizing alkenes. Why are the leaving groups for E2 reactions not as good as E1 reactions?
What is the maximum amount of silver chloride that can be formed? IN GRAMS b.What is the FORMULA for the limiting reagent?
25g of a hydrocarbon undergoes complete combustion leading to the formation of 77 g of CO2. What is the % of carbon in the hydrocarbon?
If 13.5g of (NH_4)_2SO_4 is dissolved in enough water to form 230mL of solution, what is the molarity of the solution.
61.0 mL of a solution(1.60 M) is diluted to a volume of 208 mL. A portion of that solution(104-mL) is diluted using 121 mL of H 2 O. determine the final concentration?
Synthesis of a Liquid Crystal, experiment in which added 500 mg of cholesterol to 1.5 mL of dry pyridine. Then added 1.7 mmol of benzoyl chloride and heated the mixture.
Even with a drying tube, leaving phenylmagnesium bromide exposed to air will eventually lead to its decomposition. Why? What is the product of this decomposition pathway?
how many moles of Ba(OH)2 are present in 165ml of 0.600M Ba(OH)2.
the partial pressure of oxygen in air at sea level is 0.21 atm. using the data in table 13.2, together with henry's law, calculate the molar concentration of oxygen, in the surface water of a mountain lake saturated with air at 20 degrees celcius ..
If 125 cal of heat is applied to a 60.0 g piece of copper at 24C, what will the final temperature be? The specific heat of copper is 0.0920cal/(g x C).
how many moles of oxygen are required to react completely with 5 mol C8H18?
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