Chemistry Final Exam Review Pt. 4

Front

What is the volume of 1 mole of any gas at STP?

Back

22.4 L

Front

What is STP in chemistry?

Back

Standard Temperature and Pressure, defined as 0 degrees Celsius (273.15 K) and 1 atm pressure.

Front

What is the relationship between pressure and volume in gases?

Back

According to Boyle's Law, pressure and volume are inversely related at constant temperature.

Front

What is the ideal gas law equation?

Back

PV = nRT, where P is pressure, V is volume, n is number of moles, R is the ideal gas constant, and T is temperature.

Front

What happens to gas pressure when the volume decreases?

Back

The pressure increases, according to Boyle's Law.

Front

What is the molar mass of chromium (Cr)?

Back

51.996 g/mol

Front

How do you calculate the number of moles from grams?

Back

Number of moles = mass (g) / molar mass (g/mol).

Front

What is a balanced chemical equation?

Back

A chemical equation where the number of atoms for each element is the same on both sides.

Front

What is the significance of coefficients in a balanced equation?

Back

Coefficients indicate the relative amounts of reactants and products involved in a reaction.

Front

What is the effect of temperature on gas volume?

Back

According to Charles's Law, volume increases with an increase in temperature at constant pressure.