Chemistry Answers

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    i.       How many kilojoules of heat are absorbed when 0.46 g of chloroethane (C₂H₅Cl, boiling point 12.3˚C) vaporizes at its normal boiling point? The molar heat of vaporization of chloroethane is 26.4 Kj/mol.

Determine the minimum volume of 0.50 mol/L calcium chloride solution required to precipitate 14 g of calcium carbonate when mixed with excess sodium carbonate

Mole of Ar atoms moving at 650 m/s

Arsenic and oxygen react together to form arsenic oxide.  A sample of arsenic contains 0.4774 g, and a sample of oxygen contains 0.2043 g.  What is the formula of the arsenic oxide formed?

Stomach acid is approximately 0.137 M HCl. Using your average number of moles of CaCO3 per antacid tablet, what volume of stomach acid will a tablet neutralize?

Container A holds 727 mL

727 mL of an ideal gas at 2.50 atm.

2.50 atm. Container B holds 159 mL

159 mL of a different ideal gas at 4.90 atm.

4.90 atm.

If the gases are allowed to mix together, what is the resulting pressure?\

Determine the pressure in atm exerted by 1 mole of methane in a 2.44mL bulb at 25°c using vanderwaals equations

Which atomic orbital is spherical in shape?

0.125L of 0.05M Ba(OH)2