AP Chemistry Topic 1.1-1.4

Front

What is the formula to convert grams to moles?

Back

Front

What is a cation?

Back

A cation is a positively charged ion that has lost one or more electrons.

Front

How do you calculate the percent mass of an element in a compound?

Back

Front

What is the molar mass of water (H2O)?

Back

The molar mass of water (H2O) is 18.016 g/mol.

Front

How many hydrogen atoms are in (NH4)2CrO4?

Back

There are 8 hydrogen atoms in (NH4)2CrO4.

Front

What is the significance of isotopes in chemistry?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons, affecting their mass and stability.

Front

What is the molar mass of copper (Cu)?

Back

The molar mass of copper (Cu) is approximately 63.55 g/mol.

Front

Define molar mass.

Back

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol).

Front

What is the difference between an anion and a cation?

Back

An anion is a negatively charged ion, while a cation is a positively charged ion.

Front

How do you determine the most abundant isotope from a mass spectrum?

Back

The most abundant isotope is indicated by the highest peak in the mass spectrum.