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The Ksp of Ba3(Po4)2 is 6.0 x 10^-39. How many grams of Ba3(PO4)2 can be dissolved in 250mL of solution before the solution become saturated? Molar Mass of Ba3(PO4)2 = 601.9 g/mole
Calculate the theoretical yield for the reaction if .80g of succinic anhydride and excess aniline was used. Whis is the percent yield if a student isolates 0.9g of succinimide
Find the equilibrium concentrations of A and B for a = 2 and b = 2. Assume that the initial concentration of A is 1.0 M and that no B is present at the beginning of the reaction.
Calculate the pH of the buffer prepared by mixing 35.0mL of 0.15M HC2H3O2 with a 25.0mL of 0.10M NaC2H3O2. K(a) for HC2H3O2 = 1.8 x 10^-5
How do you calculate the force of water hitting a concrete cylindrical pole. The velocity of the water is 2 ft/s, the depth of the water is 10 ft, and diameter of the pole is 3 ft. So what would be the total force exerted on the pole by the water?
Based on Liquid Chromatography, how can I changed if the capacity value and selectivity value and resolution value is not in the proper range?
We are enabling the trans to cis isomerization of E-1,2,-bidenzoylethylene by irradiating the alkene with light. Why does light allow for the isomerization. What does light do to the alkene.
In the titration of a weak base (0.100 M piperazine, 40 mL) with a strong acid (0.100 M HCl). Calculate the pH values between 0 mL Va and 100 mL in 10 mL steps. The two Ka values of piperazine are 4.65 x 10^-6 and 1.86 x 10^-10
Wine is made by adding yeast to grape juice. What concentration of glucose in grams per liter must the grape juice contain to produce wine that is 11% ethanol by volume? (take the density of ethanol to be 0.789 g/mL^-1) C6H12O6(aq)----> 2CH3CH2OH(..
A chemist burns a a saltine cracker in a calorimeter containing 2.0 kg of water. The water temperature increases from 25.0°C to 29.7°C. Calculate the heat content of the cracker in J per cracker.
Select the IR frequency and number of NMR signals that is diagnostic for either isomer a or isomer b. Isomer A: cyclopentanecarboxamide Isomer B: 6-hydroxyhexanenitrile
Write a Lewis structure for each atom or ion. Draw the particle by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons and nonbonding electrons.
What is green chemistry. how does it relate to heating A mixture of sodium carbonate and sodium bicarbonate (lab)
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