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Calculate the molarity of the following solutions:
a) 5.6 mol of sodium chloride dissolved to form 25 L of solution.
b) 5.6 g of sodium chloride dissolved to form 25 L of solution.
c) 5.59 kg of calcium chloride dissolved to form 15.9 L of solution.
d) 1.5 mg of silver nitrate dissolved to form 55 mL of solution.
What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 30.00 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive. Ka = 1.8 × 10-5 for CH3CO2H.
Write an overall, balanced equation for the reaction of Na2SO3 with CH3CO2H, and name the reactants and products.
mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
A 1.43-L flask is filled with propane gas (C3H8), at 1.00 atm and -23.0°C. What is the mass of the propane in the flask?
when 2.74 g of Ba(s) reacts with O2(g) at 298 K and 1 atm to form BaO(s), 11,100 J of heat is released. what is the delta H of formation for BaO(s) in kJ/mol?
Which of the following alkenes can exhibit cis-trans isomerism?
A sample of H2SO4 contains 1.11 grams of H (1.01 g/mol). How many moles of H2SO4 (98.02 g/mol) are present?
When you heat up popcorn, it loses water explosively and it pops. suppose a kernel of corn, weighing 0.125 grams weighs only 0.106 grams after popping.
When (R)-2-bromobutane reacts with NaOCH3, the product will have what stereochemical configuration?
Starting with 3.30 moles of HBr in a 12.0 L reaction vessel, calculate the concentration of H2, Br2, and HBr at equil.
A compound made of elements from group 2A ("M" below) and group 6A ("X" below) of the periodic table would be expected to have a formula
What is the percent dissociation of ascorbic acid if the solution has a pH = 5.50 and a pKa = 4.10?
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