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How many moles of solute particles are present when 0.25 moles of CaSO4 is dissolved in water?
Two gases, oxygen (28.8 grams) and carbon monoxide (19.0 grams), are confined in a container at a pressure of 640.0 torr. Calculate the partial pressure of carbon monoxide in torr.
What is the hydronium ion concentration of a 0.500 M acetic acid solution with Ka = 1.8 x 10-5? The equation for the dissociation of acetic acid is: CH3CO2H(aq) + H2O(l) H3O+(aq) + CH3CO2-(aq)
Using active extraction (changing the polarity) and a gravity filtration to remove a component, describe how you would obtain pure naphthoic acid from this mixture.
Using all the inorganic reactants neccessary and only CH3I and acetylene as carbon based compounds, make (2S,3R)-2,3-butanediol. Show both a retrosynthesis and forward synthesis.
A gas has a volume of 590 mL at a temperature of -55.0C. What volume will the gas occupy at 30.0C.
what do you think Does it mean that their properties also differ from a classical model of matter?
find ratio of the atomic mass of silicon to hydrogen if every 100g of sih4 contains 87.45g of si and 12.55g of h.some
a backpacker wants to carry enough fuel to heat 2.9 kg of water from 27 degrees c to 100.0 degrees c. if the fuel he
Calculate the [H3O+] concentration in 0.45 M solution of barbituric acid, HC4H3N2O3. Ka for barbituric acid is 1.0 X10 ^-5.
constitutionally isomeric ketones that have the molecular formula C4H8O2
1.20 moles of a nonelectrolyte is dissolved in 1000 g of water. What is the value of the freezing point depression of this solution, given that Kf for water is 1.86 C/m?
explain the main concept behind the VSEPR theory of molecular shape. how do both number and type of electron pairs influence the shape of a molecule?
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