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explain what are the concentrations of h3cit h2cit- and hcit2- in a sample of lemon juice that has a ph of 230 also a
depict a lewis structure for urea h2 nconh2 define the compound primarily responsible for the smell of urine define the
suppose 1892ml of na2s2o3 solution were necessary to titrate the iodine formed from 2095ml of a 00100m kio3 solution
define a piece of metal weighing 515g at a temperature of 493 degc was placed in a calorimeter in 2000 ml of di water
compute the maximum number of grams of nh3 that can be produced by the reaction of n2 with 300 g h2reaction n2g 3 h2g
explain when 286 g of nas react with excess f2g to form nafs at standard state conditions 69 kj of heat are evolved
assume two chemical reactions are linked together in a means that the o2 produced in the first reaction goes on to
if a 295 ml sealed container at 25 degc contains 080 g of a gas at 680 torr define what is the molar mass of the
while you mix iron and hcl why does the chemical reaction begin slowly and then suddenly
a 500 ml sample of 053 m benzoic acid c6h5cooh and a weak monoprotic acid is titrated with 048 m naoh compute the ph at
explain how many liters of s03 g are produced at 25c and 10atm from the combustion of 10kg of coal which is 10s by
while 15 g of baking soda nahco3 is added to 4000 ml of vinegar an aqueous solution of ch3cooh at 5 concentration by
explain a distillate was collected between 78-82 degrees c at sea level define the reported boiling point was 80
while 14 g of baking soda nahco3 is added to 5500 ml of vinegar an aqueous solution of ch3cooh at 5 concentration by
react 1 mol of als with enough cl2g to entirely react and form the expected product s define how much cl2 is consumed
1 the ph of a 010 m hcn solution is 52explain what is cn- and what is hcnwhere do h and cn- ions come fromexplain what
a solution prepared by dissolving 200 mg of insulin in water as well as diluting to a volume of 500ml gives an osmotic
state a beaker contains 100 ml of 00640 m h2so4 define what volume of 00470 m koh solution is needed to exactly
if a sodium oxalate na2c2o4in solution is oxidized to co2g by mno4- which is reduced to mn2 a 503ml volume of a
classify the principal conjugate acidbase pair and compute the ratio between them in a solution that is buffered to ph
if trinitrotoluene tnt is synthesized from toluene and nitric acidc7h8 3 hno3 c7h5n3o6 3 h2osuppose a student mixed
compute the concentration of a solution prepared by adding up enough water to 23 g of sucrose c12h22o11 to make a total
nitric acid is not merely a strong acid however also a strong oxidizing agent in the hot concentrated acid solution the
explain when sodium metal comes into contact with water hydrogen bubbles out of the solution presenting a potential
if titration of 30 ml sample of acetic acid is performed by dropwise addition of 068 m naoh a total of 879 ml of the