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as k2o dissolves in water the oxide ion reacts with water molecules to form hydroxide ions write the molecular and net
a stock solution is prepared by adding 30 ml of 17 m nano2 to enough water to make 49 ml how many moles of no2- are in
it takes 782 j to raise the temperature of 456 g lead by 113 degrees c calculate the specific heat capacity of
a corrosion potential of -0299 v versus sce was measured for a corroding alloy what was the potential versus sceagagcl
a solution was prepared by mixing 4000 ml of 0130 m hno3 and 13600 ml of 0200 m hno3 calculate the molarity of the
states to draw the 2 chair conformers of cis-1-ethyl-4-ispropylcyclohexane indicate which one is the most stable and to
which of the following undergoes nucleophilic substitution by the sn2 mechanism at the fastest rate1
phenol commonly known as a carboxilic acid was used by josheph lister as an antiseptic for surgery in 1865 its
what is the name of the product that results when 4-methylcyclohexane is treated with 2 ethnolic pbp
a gas mixture is composed of 00856 mol of ne and 00254 mol kr what is the mass percent of kr in this
common brass is a copper and zinc alloy containing 370 zinc by mass and having a density of 848 gcm3 a fitting
when heated calcium and hydroxide and ammonium chloride react to produce ammonia gas water vapor and solid calcium
naturally occurring iodine has an atomic mass of 1269045 a 123849- sample of iodine is accidentally contaminated with
you wish to prepare 100ml of a buffer solution that is 025 m in carbonic acid ph 725 you have solid h2co3 and solid
for the molecule ch3cooch3 indicate the orbitals involved in the bonding of the carbon and oxygens draw a picture to
acetic acid is a weak acid ch3co2haq ch3co2-aq haqwhen pure hclo4 a strong acid is added to the aqueous solution of
consider the reaction represented by the equation2so2g o2g 2so3g for the system at chemical equilibrium which of the
hypothetical protein the positive charged guanidinium group of r21 was with in 23a of the side chain carboxylate of
a 100-g sample of solid nh4cl is heated in a 400-l container to 900k at equilibrium the pressure of nh3g is 110
for the reaction given below 100 moles of a and 300 moles of b are placed in a 100-l containerag 2bg cgat equilibrium
if you have a 255 mm solution of acetone in 500 ml of cyclohexane what is the concentration of this solution in
based on the structure of the compound why is benzoic acid and p tert butylphenol soluble a mixture of ethanol and
calculate delta e for a system that absorbs 7440 kj of heat from its surroundings and does 2770 kj of work on its
melting point of a mixture a b was measured to be higher than any of the melting points of pure individual components
a swimming pool is 2731 yards long and 3755 feet wide the pool is filled with water from a hose that has a flow rate of