1. Intro to General Chemistry

A small flask and stopper is found to weigh 23.994 g. It is carefully filled with water and reweighed. The new weight is 50.00 g. If the water density is taken as 1.000 g/ml, what is the volume of the flask?

A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 1.70 g/mL, 1.75 g/mL, 1.66 g/mL, and 1.68 g/mL. How should she report the average density of her measurements, including the uncertainty?

Calculate the temperature in °C of nitrogen gas (N2) with a density of 2.28 kg/m³ at a pressure of 2 atm. (Assume ideal gas behavior and use R = 0.0821 L·atm/mol·K for calculations.)

Calculate the number of atoms in a copper rod with a length of 9.85 cm and a radius of 1.05 cm. The density of copper is 8.96 g/cm³. (The volume of a cylinder is V = πr²l.) Express the number of atoms to three significant figures. Assume the molar mass of copper is 63.55 g/mol and Avogadro's number is 6.022 × 10²³ atoms/mol.

Greg has a blood volume of 5.9 qt. If the density of blood is 1.06 g/mL, what is the mass, in grams, of Greg's blood? (Note: 1 qt = 946.353 mL)

In an experiment, you combine water (density = 1.00 g/mL) and hexane (density = 0.66 g/mL) in a beaker to make a mixture with a total volume of 354.4 mL and a total mass of 312.9 g. Water and hexane do not mix. What is the volume of water in the mixture?

Pb has a density of 11.3 g/cm³. What is the mass of a cube of lead with a length of one side equal to 50.0 mm?

The density of a sample of wine is 1.08 g/mL. If a Salmanazar of wine is 9.00 liters, what is the weight of 3.67 Salmanazars of wine in ounces?

What is the density (in g/mL) of a 1.0 kg mass in 1500.0 mL?

What is the density (in kg/L) of a material that has a mass of 430.0 g in 0.125 L?

What is the density of a 9.343 gram piece of metal that causes the level of water in a graduated cylinder to rise from 50.0 mL to 53.5 mL?

What volume (in mL) of a soft drink that is 10.5% sucrose (C12H22O11) by mass contains 78.5 g of sucrose? (The density of the solution is 1.04 g/mL.)

Which formula is used to calculate the density of a substance?

How do you calculate the mass of water in a given volume measured in cubic yards, given the density of water is approximately 1 g/cm³?

Silver has a density of 10.49 g/cm³. What is the density of silver in kg/m³?