Lm Chem Test 2 Vocab Abd Concepts 12/6/13
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What are acids and bases roles in the bronstedlowry theory
Acids donate H and bases accept H
Define neutralization reaction
Reactions between and acid and a base, simply put as double replacement, always resulting with water as a product and always balanced
How do you get percent composition?
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
What is an aqueous solution?
A chemical dissolved in water
What is avogadro’s #
6.022 x 10 to the 23rd
How do you get from grams to moles?
Divide by the molar mass of a single atom or molecule
How do you get from moles to grams?
Multiply by the molar mass of a single atom or molecule of the sample
How do you get from moles to the number of atoms or molecules in the sample?
Multiply the number of moles in the sample by avogadros #
How do you get from the number of atoms/molecules in a sample to the # of moles in a sample?
Divide the number of atoms/m by avogrado’s number