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a 1000l tank at 89degc is filled with 786g of boron trifluoride gas and 709g of dinitrogen difluoride gas you can
how many seconds will be required to produce 10 g of chromium metal by the electrolysis of a crno33 solution using a
assuming that air is 210 percent oxygen by volume what volume of air in liters at 450 degc and 793 mmhg would be
consider a 065 m column with van deemter parameters a022 mm b217 mm mlmin and c0018 mm minml if it takes at least 85
the plate height in a particularly packed gas chromatography column is characterized by the van deemter equation with
1nbspcalculatenbspthe grams of na2co3nbsprequired to prepare 2500 ml of 0375 m na2co3nbspsolution2nbspthe reaction of
write the balanced equation for the reaction of calcium metal with iron iii nitrate the coefficients on calcium metal
aluminum displaces cobalt from a 02 m solution of cobaltii perchlorate cobalt does not displace chromium from a
a 187 g sample of mg reacts with 800 ml of a hydrochloric acid solution ph -0544 what is the ph of the solution after
write an essay about molecular modelling its uses and applications and use a freely available modelling software from
if it is considered that drinking 800 ml of water per day containing an arsenic concentration equal to the us epa
an empty 100-ml measuring cylinder weighs 132456 gnbsp when filled with rice to the 100-ml mark it weighs 220345 gnbsp
potassium sulfate is commonly used in fertilizers an agricultural researcher in alaboratory measures and weighs a
1 the general public often expects solutions to our environmental issues that have zero risk explain in less than 200
potassium and sodium chloride are similar in charge and they both have the same anion when comparing sodium chloride
for this question imagine that sea water is a 35 mass solution of nacl with a density of 100gml assume full
could someone please help me balance the following redox reaction in a basic solution nbspcus no3-nbsp ogravenbsp
pyridine c5h5n is a weak base pkb 874 with an unpleasant sweet fishy odour in a titration 1750ml of pyridine solution
a how many milliliters of a 072nbspmhclnbspsolution do you need to obtain 00032nbspmolnbspofnbsphclb a flask containing
imagine you are performing a calorimetry experiment using a constant-pressure calorimeter first you calibrate the
analyzed individually two solutes have retention times of 17 s and 21 s with peak widths at half-maximum w12 of 19 s
a 200 g sample of water with a temperature of 32c is added to 50 g water at 55cin an insulated container what is the
why is the freezing point of water set at 32ordmf why does the fahrenheit scale start at
calculate the change in internal energydelta e for a system that is giving off 250kj of heat and is changing from 600l
when 0430 mole of titanium is combusted in a bomb calorimeter the temperature of the calorimeter increases from