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how many seconds are required to depositnbsp0149nbspgrams ofnbspcoppernbspmetal from a solution that
start with a 150 ml sample of 45 m hydrofluoric acid what is the ph if you buffer the solution by adding sodium
a 200-l cylinder containing 1134 kg of butane c4h10 was opened to the atmosphere calculate the mass of the gas
a sample of a compound of xenon and fluorine was confined in a bulb with a pressure of 18 torr hydrogen was added to
can anyone explain this scenario step by step i realy need to understand every step in order to succeed in my chemistry
aluminum strips were added to an aqueous hcl solution and the hydrogen gas was collected over water in a burette in
what volume of 500 times 10-3 m hno3 is needed to titrate 10000 ml of 500 times 10-3m caoh2 to the equivalence
describe the procedure for the determination of the ph of a solution given the hydroxide anion concentration
a student didnt notice that her pipet tip was broken she used the pipet properly but it consistently delivered 470 ml
if you spill a little of the benzoic acid as you mix it with the lauric acid will the molecular weight that you
a no has a bond energy of 632 kjmol but the energy of each n-o bond in no2 is 469 kjmol using lewis dot diagrams
write the chemical equation representing the electron affinity of oh including relevant state
several routine or newer sample pretreatment methods have been discusses for analytical quantitative chemistry such as
describe what is better for cleaning when a hard water is used a soap or a detergent and
what is the balance equation for complete combustion of the following hydrocarbons a butane b
sulfur hexafluoride a volatile conservative pollutant is continuously discharged into a stream having constant
a current ofnbsp637times104nbspanbspis passed through an electrolysis cell containing
a hydrogen fuel cell gas chamber is 1 l calculate the volume of water needed to produce 1 lnbsphydrogen gas assuming
o2 g h20 l mg snbsprarr mgoh2 s unbalanced overall reactiona write the balanced half reactions at the cathode and
the pesticide parathion is applied to a field on a sunny day parathion reacts via photolysis sunlight with water
1 if the water is in equilibrium with the co2g in atmosphere what is the ph of the water given henrys constant kh
a rock originally had 4800 atoms of 40-k and no 40-ar it now has 400 atoms of 40-k assuming that the only chemical
you have determined that your sample is an ester with a molecular mass of approximately 104 gmolnbsphow many c and o
the d line in the spectrum of sodium is a doublet at 5890 and 5896 nm calculate the minimum number of linesmm needed in