chapters 5 and 6

Question 1

conversion from celsius to fahrenheit

Answer 1

F=(9/5•C)+32

Question 2

convert fahrenheit to celsius

Answer 2

C=(F-32)•5/9

Question 3

celcius to kelvin

Answer 3

K=C+273

Question 4

kelvin to celsius

Answer 4

C=K-273

Question 5

kevin to fahrenheit

Answer 5

F=(1.8•(K-273))+32

Question 6

fahrenheit to kelvin

Answer 6

K=(F+457.87)•5/9

Question 7

what are the sig fig rules for addition/subtraction

Answer 7

use the least number of decimal places for the sig fig amount

Question 8

sig figs for multiplication/division

Answer 8

use leat number of sig figs total

Question 9

mass percent formula

Answer 9

grams of solute/grams of solution •100

Question 10

find empirical formula

Answer 10

convert all elements to moles then divide but the smallest amount of moles calculated and thats how many of each element for the formula

Question 11

find molecular formula

Answer 11

find the empirical formula and figure out its mass. then divide the mass of the unknown molecular formula and whatever number you get you mutiply your entire empirical formula by that

Question 12

limiting reagent calculation

Answer 12

convert the given grams to grams of product you want then whichever element yielded the least amount is the limiting reagent

Question 13

calculate excess reactant remaining

Answer 13

you take the original amount given for the limiting reagent and convert that to grams of the other reactant. then you subtract that number from the amount of the other reactant originally given

Question 14

when can you use McVc=MdVd

Answer 14

for dilution problems only

Question 15

how to write net ionic equation

Answer 15

figure out what splits up and what doesnt (SA and SB and solubility rules)
then cross out ions that appear on both sides of the equation

Question 16

acid is a proton _____

base is a proton_____

Answer 16

donor, acceptor

Question 17

oxidation number of an element

Answer 17

0

Question 18

oxidation number of O

Answer 18

-2

Question 19

oxidation number of H

Answer 19

+1

Question 20

oxidation number on monotomic ion

Answer 20

oxidation number is equal to the charge assigned

Question 21

oxidation number of fluorine

Answer 21

-1

Question 22

calculate titration stuff

Answer 22

convert ml of substance not being looked for to mol of that substance. then convert those moles to moles of the substance you want and then take that number and divide it by the volume of the liquid given to you

Question 23

strong acids

Answer 23

hydrogen chloride(HCl), hbr, hi, HNO3, HClO4, HCLO3, h2so4

Question 24

strong bases

Answer 24

NaOh, Koh, ca(oh)2, ba(oh)2

Question 25

sodium, potassium, and ammonium are_____

Answer 25

soluble

Question 26

all nitrate acetate chlorate and perchlorate are ____

Answer 26

soluble

Question 27

chloride, bromide, and iodide salts are soluble except

Answer 27

lead, silver, or mercury

Question 28

hydroxide and oxygen not soluble except

Answer 28

sodium potassium or barium

Question 29

sulfide salts arent soluble unless

Answer 29

sodium potassium or barium or ammonium

Question 30

carbonate salts not soluble unless

Answer 30

sodium potassium or ammonium