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Explain desalination by Electro-dialysis process. What are the advantages of this process.
Find delta H for HCl(g) given H-Cl bond enthalpy = +431 kJ·mol-1;
Solve an equilibrium problem (using an ICE table) to calculate the of each of the following solutions. 1) 0.12 M HF pH = ? 2) a mixture that is 0.12 M in HF and 0.12 M in NaF Explain And show work please
use the concept of electron configurations to explain why the number of alence electrons in metals tends to be less then the number in most nonmetals.
You are titrating a 50.0mL solution of calcium hydroxide with phosphoric acid. if it takes 15.00mL of 0.0360 M phosphoric acid to reach the equivalence point what is the concentration (in M) of the calcium hydroxide solution
a 125 g metal block at a temperature of 93.2 Celsius degree was immersed in 100. g of water at 18.3 celsius degree. given the specific heat of the metal (Cp = 0.900 J/g Celsius), find the final temperature of the block and the water.
You need to synthesize m-chloropropylbenzene however you have to start with benzene as your source of the aromatic ring. Depict the other organic compound you would pull off of the lab shelf to start the synthesis.
How many kilocalories are needed to vaporize 20.0g of H2O(l)? Also, How many kilocalories are released when 20.0g of H2O(g) is condensed?
Suppose A 5.0mL sample of vinegar was titrated with 7.2mL of 0.55 M NaOH(aq). If the density of the vinegar solution is .00 g/mL, explain what is the mass percent of acetic acid present
An automobile gasoline tank holds 36 kg of gasoline. When the gasoline burns, 95 kg of oxygen is consumed, and carbon dioxide and water are produced.
The manager of amedium-sized office hired a fire prevention specialist to give the annual fire training for their employees. In a pretest of the audience, the specialist said that lithium, sodium and potassium fires cannot be extinguished effectivel..
A buffer solution contains 0.10 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L. (a) What is the pH of this buffer? (b) what is the pH of the buffer after the addition of 0.02 mol of KOH? (c) What is the pH of the buffer after the addi..
Calculate the pH of 0.300 L of a 0.500 M NaHSO3 / 0.300 M Na2SO3 buffer before and after the addition of the following solutions. Assume that the volume remains constant.
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