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How many liters of water are required to dilute 6.23mL of 12.2M HClO4 to make a solution with a pH of 2.34? Write your answer as 1.2E1L
What is the percent yield of lithium nitride if 76.8 g of lithium nitride is recovered from reacting 56.0 g of nitrogen gas with 56.90 g of lithium metal?
Gold chloride,AuCl, has a Ksp of 2.0x10^-13. How many grams of gold are found in 500. ml of a saturated aqueous solution of AuCl
When separating a solid-solid mixture in lab, do the melting points of the two components have to be 30 degrees apart, like with boiling points, to be considered pure, or is it a different range?
Ammonia reacts with oxygen gas to produce water and nitrogen gas. What mass of oxygen gas must be used to react with 19g of ammonia
Calculate the percent yield for a student who completed experiment 27A and collected the following data. Give your answer to two decimal places.
A metal rod has a mass of 17.62 g. A graduated cylinder contains 28.9 mL of water. The metal rod is added to the cylinder. The final water level in the cylinder is 35.1 mL. What is the density of the metal rod?
Determine all equilibrium concentrations, the pH, the pOH and the percent ionization of each of the following acids in water.
What mass of AgBr would precipitate from this mixture? [Hint: Ksp of AgBr = 5.4*10^-13 and Kf of Ag(CN)2 is 1.0*10^21]
What mass of silver is needed to absorb 50.0 cal of heat if the tempature of the sample rises from 24 c to 36.4 c Specific heat of silver
Calculate the theoretical pH of 0.250 M weak acid, HA. Calculate the theoretical pH of a 2.5 x 10-3 M weak acid, HA, that has a Ka value of 1.2 x 10-4. What happens to % ionization of the weak acid as you dilute the acid?
Calculate the maximum number of grams of phosphorus trichloride that could be formed from 44.1 grams P subscribe 4.
prepare 100 mL each of five standard solutions: 2.00 x 10-5, 5.00 x 10-5, 1.00 x 10-4, 2.00 x 10-4, and 5.00 x 10-4 M. These will serve as your analytical standards, which means that their phosphate concentrations must be precisely known.
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