Which substance is expected to light up the light bulb the least when combined with water in a beaker in an electrolyte demo setup, as presented in this class?

You neutralize 275.0 mL of a 6.00 M hydrobromic acid solution with 150. grams of baking soda (solid sodium bicarbonate). Show all work for every part of this problem, including dimensional analysis, sig figs and units!  Highlight your answer in a readable background color.   A.  (2 pts) Write the balanced molecular equation for this reaction, including states of matter. B.  (4 pts)  Determine the limiting reactant. C.  (6 pts)  What volume (in L) of dry carbon dioxide gas (no water vapor will collect with the CO2) will be produced if the CO2 gas is at 777 torr partial pressure and 32.1°C?  Assume 100% yield. D.  (4 pts)  What volume (in mL) of liquid water is produced by this reaction?  Assume 100% yield, and that the density of water is 0.997 g/mL.

3.0 moles of N2 gas are placed inside of an empty balloon.  6.0 moles of O2 gas are then placed inside of the same balloon, which has now doubled in volume compared to when it contained only the N2 gas.  The temperature of the balloon has not changed.  Which of these statements is most likely to be true?

An inflated balloon has a volume of 151 L at sea level (1.00 atm), and is allowed to ascend until the pressure is 0.761 atm. During ascent, the temperature of the gas falls from 35°C to -14°C.  What is the volume of the balloon at its final altitude?

75.0 grams of solid sodium hydroxide is dissolved in 1.000 L of 20.0°C water in a coffee cup calorimeter.  What is the final temperature of the water, in °C? Show all work, and highlight your answer in a readable background color. 

A gas-filled balloon has an initial volume of 3.53 L at 2.30 atm and 61°C.  What is the final volume (in L) of the balloon if the pressure and temperature are adjusted to 76.3 kPa and 8°C? Show all work, and highlight your answer in a readable background color.

The combustion of liquid carbon disulfide produces carbon dioxide gas and sulfur dioxide gas.  What volume (in L) of sulfur dioxide gas is produced along with 83.1 kJ of heat under standard thermochemical conditions?  Assume 100% yield. Show all work, using dimensional analysis wherever possible, and highlight your final answer in a readable background color.

At a particular temperature and pressure, the effusion rate of HCl gas is 813 particles per minute.  What is the effusion rate of steam at that same temperature and pressure?

Which of the following is most likely to be insoluble in water?

(3 pts possible, question will show as being out of 0 pts) Given the following data: Ca(s) +   O2(g)   —>   CaO(s)