Gravimetric Stoichiometry Unit Final

Question 1

what are the 4 reaction assumptions?

Answer 1

reactions are spontaneous, fast, quantitative and stochiometric

Question 2

what do the coefficients of balacned equations show

Answer 2

the number of moles of each substance within the reaction

Question 3

what is stoich based on

Answer 3

assumptions made regarding reactions as they are written on paper

Question 4

what does percent yield show

Answer 4

how much function of reactant are we getting as a product compared to how much we are predicting

Question 5

percent yeaild formula

Answer 5

percent yeild = (actual yield/predicted yield) x 100

Question 6

whats an excess reactant

Answer 6

reactant who still has some entities left over after the reaction has finished

Question 7

what does greater then 100% yeild mean

Answer 7

an error occurred, wasn’t ideal conditions, or something unexplainable happened

Question 8

how to get mass of excess reactant

Answer 8

subtract the mass of excess reagent consumed from the total mass of excess reagent given

Question 9

what are the 5 main characteristics of an ionic compound

Answer 9

high melting point, conductive, soluble in water, hard and brittle, retention of crystal shape

Question 10

what are the 4 mian characteristics of molecular compounds

Answer 10

low melting points, generally soft, not conductive, not typically soluble

Question 11

whats the acronym for remembering how to name acids

Answer 11

my ride has hydraulics. I ate something icky. sprite is delicious.