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A current of 3.87 A is passed through a Cr(NO3)2 solution for 1.10 hours. How much chromium is plated out of the solution? in (g)
whats the concentration of the acetic acid solution? If 10.91 mL of an acetic acid solution required 9.78 mL of 1.0439 M NaOH
A gas mixture composed of helium and argon has a density of 0.727g/L at a 755mmHg and 298K .What is the composition of the mixture by volume?
What is the magnitude of the change in pH when 1.8 g of NaOH is added to 1.00 L of a solution that is 0.100 M in NH3 and 0.100 M in NH4Cl?
If a tube contains 4.0 oz of sunscreen, how many kilograms of benzyle salicylate are needed to manufacture 325 tubes of sunscreen?
they are stable molecules with normal bonds and are frequently isolated. d. all reactions involve reaction intermediates, but not all have activated complexes. e. they are intermediate structures which have characteristics of both reactants and pr..
Determine the mass of this substance should evaporate in order to freeze 190 grams of water at 25 degree Celsius initially? It is given that the heat of fusion H 2 O= 334 specific heat of H 2 O= 4.18
What are the molality and mole fraction of solute in a 36.3 percent by mass aqueous solution of formic acid (CH3OH)?
How many grams of Ca(OH)2 are needed to neutralize 3.6 moles of HCl in 655 mL of solution? The molar mass of HCl is 36.46 g/mol. The molar mass of Ca(OH)2 is 74.1 g/mol.
Calculate delta E for the combustion of a gas that releases 195.0 kJ of energy to its surroundings and does 54.5 kJ of work on its surroundings.
An acid solution is 0.120 M in HCl and 0.210 M in H2SO4.What volume of a 0.160 M KOH solution would have to be added to 550.0 mL of the acidic solution to neutralize completely all of the acid.
given the following substances, xenon, ammonia, iodine monochloride, and fluorine, and the following statements,
An archeologist finds a huge monolith in the desert. In order to estimate the weight of this object; he estimates the dimensions of the monolith and removes some chips from the rock with his hammer.
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