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a 5 g antacid tablet listing aluminum hydroxide aloh3 as its active ingredient requires 13860 ml of 01111 m
1 vanillin is an organic compound containing ch and o combustion of 105g of vanillin produces 243g co2 and 050 of h2o
a diamond is forever is one of the most successful advertising slogans of all time but is it true for the reaction
a dilute aqueous solution of h2so4 solution is to be concetrated with solution containing 90 h2so4 by mass solution b
under constant pressure conditions a sample of hydrogen gas initially at 880 degree c and 950 l is cooled until its
using the boltzmann distribution calculate the ratio of electrons at the bottom of the conduction band to those at the
1 calculate the ph of a solution that is 15 m na2hpo4aq and 44 m na3po4aq not sure how to solve it the ka1 of h3po4 is
to measure calcium in breakfast cereal 05216g of crushed cheerios were ashed dissonved in 6m hcl quantitatively
write equations to show how a buffer made up of equimolar amounts of acetic acid ch3coohm and acetate ch3coo- would
how come the reaction of terminal alkynes and alkenes with kmno4 would yield a carboxylic acid and carbon dioxide why
a certain amount of gas at 280 degrees c and at a pressure of 900 atm is contained in a glass vessel suppose that the
a gas evolved during the fermentation of glucose wine making has a volume of160 l when measured at 220 degree c and
calculate the ph during the titration of 200 ml of 025 m hbr with 025 m koh after 1990 ml of the base have been
dry ice is solid carbon dioxide a 0149 g sample of dry ice is placed in an evacuated 477 l vessel at 260 degree c
dissolving 349 g of an impure sample of calcium carbonate in hydrochloric acid produced 635 l of carbon monoxide
the empirical formula of a compound is ch at 2000 degrees c0193 g of this compound occupies 972 ml at a pressure of 740
assume you dissolve 0235g of the weak acid benzoic acid c6h5cooh in enough water to make 001ml of solution and then
a use the dipole moments of hf and hcl hf 108 d hcl 182 together with the percent ionic character of each bond hf 20
if you are given a 026 g piece of sodium metal to react with water how many moles of hcl would it take to neutralize
consider the dimerization 2a to a2 with forward rate constant ka and backward rate constant kb a derive the following
950 g of 00 degree c ice is added to exactly 100g of water at 600 degree c when the temperature of the mixture first
draw a picture of the following cell and write reduction half-reactions for each electrodeptsfe3 aqfe2aqcro72-aqcr3
if 840 kj of heat is needed to raise the temperature of a sample of metal from 15 degrees celsius to 20 degrees celsius
the solubility of alf3 is 67 gms of alf3 per liter of solution the density of a saturated alf3 solution is 1grm per ml
a sample of 6820 g of an unknown compound containing barium ions ba2 is dissolved in water and treated with an excess