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calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor
consider dissolving ammonium nitrate nh4nos s for which hcircle 253 kjmol if 133 grams of ammonium nitrate are
a pesticide sprayer got stuck while trying to ford a stream flowing at a rate of 136 ls pesticide leaked into the
redox titrations are used to determine the amounts of oxidizing and reducing agents in solution for example h2o2 a
a volume of 900ml of aqueous potassium hydroxide koh was titrated against a standard solution of sulfuric acid h2so4
a scientist wants to make a solution of tribasic sodium phosphate na3po4 for a laboratory experiment how many grams of
the following five beakers each containing a solution of sodium chloride also known as table salt were found on a lab
if ethyl benzoate is treated with phenyl magnesium bromide 11 ratio a one to one mixture of ethyl benzoate and
how many grams of oxygen are needed to react with 250g of mg how many grams of mgo will
if 012 m of h2so4 and 012 m hc1 were used to titrate the same amount of soda ash and the consumed volume of h2so4 was
the assay of a soda ash sample was reported as 6521 na2co3 express the carbonate content in terms of percent co2 and
the soda ash in your analysis was assumed to be pure na2co3 how would the volumes change if some of the na2co3 were
the soda ash in your analysis was assumed to be pure na2co3 if some of the na2co3 is replaced by an equal number of
a concentration cell consists of two h2h half cells half cell a has h2 at 087 atm bubbling into 020 m hcl half cell b
1 for the 942 mmol of benzoin what is the minimum amount in mmol of nabh4 needed for this reduction look at balanced
a solution of l-alanine 400 ml is brought to ph 8 and treated with excess formaldehyde the solution now requires 250 ml
what is the iupac substitutive name of the organic product formed in the reaction between cyclohexanol and phosphorus
on the basis of the general solubility rules given in the table predict the identity of the precipitate that forms when
consider the dissolving of ammonium nitrate nh4no3 s for which hdeg 253 kjmol if 133 grams ofammonium nitrate are
suppose the burning of magnesium becomes uncontrolled it burns brightly how will this procedural error affect the
for the average person a ldl chlesterol value is less than 200mgdl 200mg of ldl cholesterol per dl of blood what is
calculate the heat capacity of a calorimeter if the combustion of 5000 g of benzoic acid led to a temperature increase
to prevent the presence of air noble gases are placed over highly reactive chemicals to act as inert blanketing gases a
calculate the heat capacity of a calorimeter if the combustion of 4664 g of benzoic acid led to an increase in