1. How Is Molar Mass Calculated And Why Is It Useful?
Moles
1.How is molar mass calculated and why is it useful?
You have to multiply the atomic weight of each element by the number of atoms that it contains in a compound. Molar mass is useful because its used to change a measurement of mass to an amount of a substance such as the number of particles.
2.Define a mole in chemistry and give 3 examples equivalent units that are used in chemical calculations.
A mole measures the amount of a substance. Three examples that are equivalent to a mole is molar mass, 22.4L, 6.02x10^23 (avogadro’s number).
Gas Laws
3.How is the combined gas law used to calculate differences in pressure, temperature and/or volume for a fixed amount of gas?
The combined gas law is P1V1/T1=P2V2/T2 and this equation is used to find the difference …show more content…
When a base and acid creates a reaction forming water and a salt.
9.How does the pH scale and the concentration of a solution related?
The higher the pH level, the lower the concentration level will be of a substance therefore the pH scale and concentration of a solution will have an inverse relationship.
10.Describe the differences in Acids and Bases?
Acids are substances that have a pH lower than 7 on the pH scale, and they donate their hydrogens. Bases are solutions that have a pH higher than 7 on the pH scale, and they accept hydrogen ions.
11.What are the differences in the Arrhenius Theory and the Bronsted-Lowry Theory?
The Arrhenius Theory states that acids in a solution produces hydrogen ions and bases make hydroxide ions in a solution. The Bronsted-Lowry Theory says that an acid is a hydrogen ion (proton) donor while a base is a hydrogen ion (proton) acceptor. Arrhenius Theory thought that hydroxide ions were always in a base, and when it dissolves in water, the hydroxide ions would be released. But the Bronsted-Lowry Theory stated that a base accepts a proton to a molecule, so it’s similar to being the reversed to an
1.How is molar mass calculated and why is it useful?
You have to multiply the atomic weight of each element by the number of atoms that it contains in a compound. Molar mass is useful because its used to change a measurement of mass to an amount of a substance such as the number of particles.
2.Define a mole in chemistry and give 3 examples equivalent units that are used in chemical calculations.
A mole measures the amount of a substance. Three examples that are equivalent to a mole is molar mass, 22.4L, 6.02x10^23 (avogadro’s number).
Gas Laws
3.How is the combined gas law used to calculate differences in pressure, temperature and/or volume for a fixed amount of gas?
The combined gas law is P1V1/T1=P2V2/T2 and this equation is used to find the difference …show more content…
When a base and acid creates a reaction forming water and a salt.
9.How does the pH scale and the concentration of a solution related?
The higher the pH level, the lower the concentration level will be of a substance therefore the pH scale and concentration of a solution will have an inverse relationship.
10.Describe the differences in Acids and Bases?
Acids are substances that have a pH lower than 7 on the pH scale, and they donate their hydrogens. Bases are solutions that have a pH higher than 7 on the pH scale, and they accept hydrogen ions.
11.What are the differences in the Arrhenius Theory and the Bronsted-Lowry Theory?
The Arrhenius Theory states that acids in a solution produces hydrogen ions and bases make hydroxide ions in a solution. The Bronsted-Lowry Theory says that an acid is a hydrogen ion (proton) donor while a base is a hydrogen ion (proton) acceptor. Arrhenius Theory thought that hydroxide ions were always in a base, and when it dissolves in water, the hydroxide ions would be released. But the Bronsted-Lowry Theory stated that a base accepts a proton to a molecule, so it’s similar to being the reversed to an