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What is the balanced equation for a reaction between potassium iodide and lead II chloride
if 2.0 g of helium gas and 5.46 g of oxygen gas are mixed togeher, what is the mole fraction of helium in the solution?
A paint mixture containing 25.0 wt% of a pigment and the balance water sells for $18.00/kg, and a mixture containing 12.0 wt% pigment sells for $10.00/kg. If a paint retailer produces a blend containing 17.0 wt% pigment, for how much ($/kg) should..
A buffer that contains 0.55 M base, B, and 0.30 M of its conjugate acid, BH+, has a pH of 8.94. What is the pH after 0.0020 mol HCl is added to 0.25 L of this solution.
How many milliliters of 0.105 M HCl are needed to titrate 50.0 mL of a solution that contains 1.25 g of NaOH per liter?
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrangement give 2-methyl-2-butanol as the MAJOR product.
a piston has an external pressure of 10.0 atm. How much work has been done is the cylinder goes from a volume of 0.180 liters to 0.630 liters
Calories given off when 83g of water cools from 48 degrees Celsius to 27 degrees Celsius.
The enthalpy of fusion of methanol (CH3OH) is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol?
Calculate the entropy of fusion of a compound at 20 oC given that enthalpy of fusion is 45 kJ/mol at its melting point of 162 oC and Cp of liquid
What is the theoretical amount of oxygen required for the fuel mixture? What amount of air is added to the fuel mixture?
What volumes of the 0.10 M HA and 0.10 M NaA solution should be mixed to prepare the buffer?
what mass in grams of adipic acid C4H8(COOH)2 will neutralize 28.2 ml of .188 M NaOH at the phenolphthalien endpoint? (adipic acid is diprotic)
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