Review - 2nd Semester

Answer the question on the last slide.

What does chemistry call the reactant (ingredient) that is limiting the reaction?

For the balanced equation shown below, if the reaction of 29.8 grams of C₂H₃OCl produces 6.31 grams of H₂O, what is the percent yield?

4C₂H₃OCl + 9O₂ => 8CO₂ + 6H₂O + 2Cl₂

_{Round the percent to the tenths place and use the percent icon}

If a gas at 25.0 °C occupies 3.60 liters at a pressure of 1.00 atm, what will be its volume at a pressure of 2.50 atm? If a gas at 25.0 °C occupies 3.60 liters at a pressure of 1.00 atm, what will be its volume at a pressure of 2.50 atm?

Put units for credit

5.00 L of a gas is collected at 100. K and then allowed to expand to 20.0 L. What must the new temperature be in order to maintain the same pressure.

Put units for credit!!

A flexible container at an initial volume of 5.120 L contains 8.500 mol of gas. More gas is then added to the container until it reaches a final volume of 18.10 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container. Put units for credit.

What is the pressure exerted by 2.3 mol of a gas with a temperature of 40. °C and a volume of 3.5 L?

The ideal gas constant is R = 0.0821 L*atm/mol*K

Find out the molarity of a solution made by dissolving 25.0 g of HCl in water to make 150.0 ml of solution?

Use the unit symbol in your answer

How much 0.50 M sugar solution will you need to make 250 ml of 0.2 M sugar solution?

Use the unit symbol in your answer

Use the Table of Ions on the last slide to name HClO₄

Use the table of ions to write the chemical formula for hydroselenic acid

Name H3AsO3

What is the name of the base containing calcium?

What is the chemical formula for a base containing calcium?

What is the weakest base on the pH scale on the last slide?

What is the strongest acid on the slide labeled - THE pH SCALE?

Find the pH if the H+ concentration is 0.0001 moles per liter.

Find the molarity of a solution of hydrochloric acid, HCl with a pH of 1.5

A 158.6 g sample of sodium absorbs 30 joules of heat. The specific heat capacity of sodium is 1.23 J/(g·°C).

By how much did the temperature of this sample change, in degrees Celsius?

Use the THERMOCHEMICAL EQUATION slide to answer this question.

How many grams of water are produced if 10000 kilojoules of energy are given off?

Use the unit symbol in your answer

What is the atomic number of the isotope that is produced from Th-241 during beta decay?

Which type of nuclear process requires the splitting of a nucleus?