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If your front lawn is 24 ft wide and 20 ft long and each square foot of lawn accumulates 1450 new snow flakes every minute, how much snow (in kilograms) accumulates on your lawn per hour? assume an avg snow flake has a mass of 2.00 mg
When 350.0 mL of 0.45 M benzoic acid is titrated with 0.15 M NaOH, what is the pH of the solution after 200.0 mL of base has been added? The pKa for benzoic acid is 4.19
Which of the following does not have higher exp. S (entropy) than calculated S in pure H20, Which of the following effects is explained through ion pairing
A baseball weighs 220 g. Top speed for a professional pitcher is about 100 mph when he throws a fast ball. Find the de Broglie wavelength (in nm) associated
For propane, C3H8, the standard enthalpy of combustion of the gas is -2220 kJ/mol and the standard enthalpy of vaporization of the liquid is +15 kJ/mol. Calculate the standard enthalpy of combustion of the liquid.
How much heat must be applied to a 18.3 g sample of iron (s=0.449J/(g x *C) in order to raise its temperature from 23.8*C to 356.6*C
explain the mechanism of reaction so I understand the reason behind it. Secondly, would the iron chloride undergo syth. as an uncatalized reaction as it acts as an idicator?
the summit of Mt. Humphreys, the highest point in Arizona, is 12,600 ft. How many meters is this
Complete and balance the following neutralization reaction, name the products, and write the net ionic equation.
A solution contains 35 g of NaCl per 100.0 g of water at 25 degrees Celsius. Is the solution saturated, unsaturated, or supersaturated
A 50.0mL volume of 0.15M HBr is titrated with 0.25M KOH. Calculate the pH after the addition of 19.0 mL of KOH.
calculate the percentage of empty space in 1 mole of water at 25 c. the volume of a molecule of water can be taken as the sum of the volumes of the two hydrogen atoms and the oxygen atom.
calculate the volume in L occupied by 0.345moles of a sample of h2(g) at a pressure of 3.90 atm and a temperature of -163C.
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