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Given the following: heat of fusion of ice = 80.0 cal/g; specific heat of ice = 0.480 cal/g; and specific heat of water = 1.00 cal/g. Calculate the amount of heat required to melt 30.0 g of ice at 0°C.

Which of the following gases would diffuse about one-third as fast as helium gas, He?

What volume of a 10.00% (w/v) solution of sugar is needed to provide 2.00 g of sugar?

Which of the following has the highest electronegativity?

How many electrons are in a neutral atom of carbon-13 (13C)?

Which of the following elements contains a total of 10 “s” electrons?

The graphs of and are shown below.  What is the total area of the shaded region?  (Hint: don’t get confused by the area below the x-axis. Recall from the notes “top – bottom”, which may vary by interval)   Round your answer to three decimal places.

According to the Fundamental Theorem of Calculus (FTC) part 2, if is an antiderivative of , then

Equilibrium:The following question(s) refer to the equilibrium given below in which all reactants and products are gases. CH4 + H2O CH3OH + H2 + heat Indicate the effect of the changing condition on the position of equilibrium. Refer to Equilibrium. Remove H2 from the mixture.

Calculate the volume in liters of 3.50 moles of gas at STP.