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Calcium chloride (CaCl2; very soluble) has been sold as a more effective de-icer than NaCl to spread on icy sidewalks. What would be the ionic strength of a solution that was 0.031 M CaCl2?
CaCl2 (s) Ca2+ (aq) + 2 Cl- (aq)
Determine the volume of 0.375 mol of C4H10 gas under the same temperature and pressure conditions?
The metal used to make the US nickel coin is an alloy of 75% copper and 25% nickel. What maximum mass of alloy could be produced if only 450 kg of nickel and 1180 kg of copper were on hand?
Fully explain why this series of reaction will produce the 3,5-dibromotoluene and direct bromination of toluene produces the 2,4-dibromotoluene.
at 710. mm hg a sample of nitrogen gas occupies 625 ml what volume does the gas occupy if the temperature constant and the pressure increases to 760. mm hg
what is the dosage of quinine when a 170lb adult takes a 400.0 mgtablet? Express in ug quinine per kg of body weight.
A 35.0-mL sample of 0.20 M LiOH is titrated with 0.25 M HCl. What is the pH of the solution after 23.0 mL of HCl have been added to the base?
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?
what is the balanced equation with notations for steam reacting with solid carbon to form the gases carbon monoxide and hydrogen.
Calculate the pH of a solution prepared by dissolving 0.30 g of BaO in enough water to make 0.800 L of solution.
What quantity of heat would be evolved if 75.00g of mercury (Hg=200.59), (O=16.00) was burned in oxygen?
1.00 mole of pure NOCl and .907 mole of pure Cl2 are placed in a 1.00-L container. Calculate the equilibrium concentration of Cl2(g).
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity'
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