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what is the coefficient of br- when the following redox equation is correctly balanced show the balanced equation bro-
which of the following solutions has a concentration of 020 m a 10994 g lithium sulfate dissolved in 50 ml water b 103
the enthalpy of activation of a first order reaction is 123kjmol the rate constant at 80 c is 173x10-2 s-1 what is the
which of the following correctly describes the observed result when gas particles attract each other 1 the gas behaves
dissolving 464g of an impure sample of ca carbonate in hcl produced 109l carbonate measured at 20 degree c at 747 mmhg
a 19l l flask at 17degree c contains a mixture of n2 heand ne at partial prassuer of 0261 atm for n2 is 0195 atm for he
to obtain the formation constant of a 11 complex absorbance data in a 100 cm pathlength cell at various ligand
the rate constant of the reaction between co2 and oh - in aqueous solution to give the hco3- ion is 15 1010 1mmiddots
how much limestone in kilograms is required to completely neutralize a 42times109l lake with a ph of
what minimum volume of 140m hydrochloric acid would be required to completely dissolve a 7000g iron
how many grams of cl2 can be prepared from the reaction of 800g of mno2 an 250 g of hcl according to the following
a sample of h2 gas 20 l at 35 atm was combined with 15 l of n2 gas at 26 atm pressure at a constant temperature of 25
a fixed amount of gas at 250 degc occupies a volume of 866 l when the pressure is 629 torr use charless law to
a place the following gases in order of increasing average molecular speed at 300 k co sf6 h2s cl2 hbr use the
hydrogen has two naturally occurring isotopes 1h and 2h chlorine also has two naturally occurring isotopes 35cl and
a gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions it
for the following electrochemical cell cuscu2 aq 00155 mag aq 150 mags write the net cell equation phases are optional
calculate the mass of iodine that will react completely with 400 g of aluminum al to form aluminum iodid
place the following gases in order of increasing average molecular speed at 25degc ne hbr so2 nf3
what are the mole fractions of each component in a mixture of 510 g of o2 744 g of n2 and 126 g of h2 o2 n2 h2 b what
a mixture of gases contains 135 g of n2 264 g of h2 and 238 g of nh3 if the total pressure of the mixture is 164 atm
a mixture of gases contains 077 mol n2 035 mol o2 and 012 mol co2 if the total pressure of the mixture is 148 atm what
what is the empirical formula of a compound containing c h and o if combustion of a 175g sample of the compound yields
a mixture containing 0543 mol heg 0343 mol neg and 0132 mol arg is confined in a 700-l vessel at 28degc a calculate the