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Problem- What hydrogen ion concentration should be required to dissolve 0.10 M MgF2 if the Ksp for magnesium flouride is 6.8*10^-9and Ka for HF is 6.5*10^-4?
Write your solution in appropriate format and provide references
Explain what happens when a mineral acid reacts with an amine. State the equation showing how an amine reacts with HCl.
A solution is prepared by dissolving 17.2g of c2h6o2 in .500kg of h2o. The final volume of the solution Is 515ml. Calculate percent by mass.
ropes 3 m and 5 m in length are fastened to a holiday decoration that is suspended over a town square. the decoration
A 25.00 mL sample of the weak acid, propionic acid, HPr, of unknown concentration was titrated with 0.104 M KOH. The equivalence point was reached when 35.31 mL of base had been added. The concentration of the original HPr is
A Snickers® candy bar contains 280 Calories, of which the fat content accounts for 120 Calories. What is the energy of the fat content, in kJ
solid lithium hydroxide reacts with gaseous carbon dioxide to form solid lithium carbonate and liquid water. what mass
What is the rate of the reaction if the concentration of CH3Br is doubled. B. What is the rate of the reaction if the concentration of NaOH is halved
solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. Write a balanced chemical equation for this reaction.
A copper refinery produces a copper ingot weighing 131 lb. If the copper is drawn into wire whose diameter is 8.25 mm, how many feet of copper can be obtained from the ingot?
Consider a Carnot Cycle that operates between heat-reservoirs temperatures of 200 C and 50 C. If 200 kJ of heat is added for the first stage of the cycle, determine the (1)thermal efficiency, (2) the work done per cycle,
Intended for a particular isomer of C8H18, the subsequent reaction produces 5113.3 kJ of heat per mole of C8H18(g) consumed under standard conditions.
The remaining white solid in the filter paper has ammonia water poured through it. This turns the precipitate in the filter paper black. The new filtrate is treated with hydrochloric acid (HCl), giving a white precipitate. What metal ion or ions a..
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