Lm Chem Test 2 Vocab Abd Concepts 12/6/13

Question 0

What are acids and bases roles in the bronstedlowry theory

Answer 0

Acids donate H and bases accept H

Question 1

Define neutralization reaction

Answer 1

Reactions between and acid and a base, simply put as double replacement, always resulting with water as a product and always balanced

Question 2

How do you get percent composition?

Answer 2

By finding the mass in grams of each element, dividing it by the total mass of the compound or molecule then multiplying by 100 to get the percentage

Question 3

What is an aqueous solution?

Answer 3

A chemical dissolved in water

Question 4

What is avogadro’s #

Answer 4

6.022 x 10 to the 23rd

Question 5

How do you get from grams to moles?

Answer 5

Divide by the molar mass of a single atom or molecule

Question 6

How do you get from moles to grams?

Answer 6

Multiply by the molar mass of a single atom or molecule of the sample

Question 7

How do you get from moles to the number of atoms or molecules in the sample?

Answer 7

Multiply the number of moles in the sample by avogadros #

Question 8

How do you get from the number of atoms/molecules in a sample to the # of moles in a sample?

Answer 8

Divide the number of atoms/m by avogrado’s number