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if 01800 g of impure soda ash na2co3 is titrated with 1566 ml of 01082 m hcl what is the percent purity of the soda ash
a compressed gas cylinder contains 100 x 103 g of argon gas the pressure inside the cylinder is 2050 psi at a
an organic compound has a molecular mass of 2942 and contains 8158 carbon by mass how many carbon atoms are in each
aspirin c9h8o4 is a weak monoprotic acid to determine its acid-dissociation constant a student dissolved 200 g of
the mass of a helium atom is 40026amu and its average velocity at 25degc is say using your gu-id example g000abcde
by convention the rate of the reaction is always positive and should be the same regardless of the chemical species
to being your experiment you will calibrate your apparatus by injecting air into a sealed reaction bottle suppose you
a fixed quantity of gas at 29c exhibits a pressure of 745 torr and occupies a volume of 444 l a calculate the volume in
in a ch3-ch-ch2-c-ch2-ch3 with ch3 attached to the ch with ch3 attached to the c and a br attached to the c why are the
in non-ionic compound the two primary sources of intermolecular forces are permanent dipoles and temporary dipoles
you need 100 l of 125m sulfuric acid solution describe how you would prepare this solution from a supply of 600 m h2so4
calculate the bp of a 10 aqueous sodium chloride solution assume this is an ideal solution kb water 520 cm the molar
a 750g sample of potassium nitrate mm101 is dissolved in enough water to make 150 ml of solution the density of the
when measure in a 100cm cuvet a 850 10-5 m solution of species a exhibited of 0129 and 0764 at 475nm and 700nm
buffer solution will be prepared using ch32nh2 and ch32nh conjugate acidbase pairs to prepare the buffer 500 ml of 0084
if silica gel is used for the absorbent what has moved more a polar or nonpolar
the amino acid glycerine h2nch2cooh has 2 equilibrium constants one for the nh3 and one for cooh pka for cooh is 2350
what would be the effect of increasing the temperature of a gas chromatography column during the analysis of a gasous
at 25 deg c vapor pressure of liquid benzene is 952 mmhg while the liquid touluene has a vapor pressure of 284 mmhg the
a solution is prepared from 30g of a non-volatile solute in 10 moles of water the solution has a vapor pressure of 0117
what is the boiling point of an aqueous solution containing 468g of sugar in 350 g of water boiling constant of water
select whether each statement is true of false about the following reaction the reaction is endothermic in the forward
70 moles of nitrogen and 100 moles of water were placed in a 25 liter flask and allowed to reach equilibrium according
calculate the solubility in grams per liter of silver chloride in 0051 m nacl and in 00030 m