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a gas of unknown identity diffuses at a rate of 833 mls in a diffusion apparatus in which carbon dioxide diffuses at
a weather balloon contains 880 moles of helium at a pressure of 0992 atm and a temperature of 25 degc at ground level
a spray can is used until it is empty except for the propellant gas which has a pressure of 1344 torr at 23 degc if the
if it takes 23g of naoh solution to completely neutralize 25 ml of sulfurous acid solution h2so3 what is the
carbonic acid h2co3 is a diprotic acid withka1nbsp 42times10-7nbspandnbspka2nbsp 48times10-11the ion product for water
parta the cloth shroud from around a mummy is found to have a 14c activity of 87 disintegrations per minute per gram of
1nbspcalculate the mass defect of the fluorine nucleus 19nbsp9f the mass of neutral 19nbsp9f is equal to 18998403
what is the correct way to convert grams of a substance to moles of a substancea divide the moles of the substance by
chemical names6 6 unread replies 28 28 repliessulfates sulfites nitrates nitrites-how does one keep all of these
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a student heated 750 ml of water in an aluminum container using an alcohol burner filled with methanol ch3ohthe mass of
what mass in g of butanol c4h10o is required such that its combustion produces 674 g of products the combustion of a
the zinc chloride battery operates on the reaction zn cl2 agrave zncl2 it has been suggested as a possibility for
what is the precipitate when 49 grams of solute are used to prepare 100 ml of calcium
the ionic radii of the ions s2- cl- and k are 184 181 138 pm respectively explain why these ions have different sizes
how does water running over a limestone grave marker change its chemical
a water flow of 400 l s flows in a pipe at a given point a mixture of methanol and water is injected with a 400 mass
concentrated acetic acid is 13 m what is the molarity of an hc2h3o2 solution prepared by diluting 30 ml of
what is the final volume in milliliters when 0747 l of a 399 mv solution is diluted to 212 mva 923 ml nacl solution
calculate the mass percent of a solution that is prepared by adding 539nbspg ofnbspnaoh to 426nbspg ofnbsph2ocalculate
what is the common ion effect and how may the common ion effect be used to prevent the dissolution of certain sparingly
a tank of gasoline contains 80 liters and that its density is 077 kgliter determine how many kg of co2 are produced for
can you help me set up this question one needs to make up 50ml of 01 m mol lif from a solution that is 3 m mol lif what
calculate the coulomb load c and the mass in grams of one mole of
1 consider the following insoluble salt cdoh2 would doing the following make it more soluble or less soluble in water