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a sample of KHC2O4 weighing 0.717g was dissolved in water and titrated with 23.47 mL of an NaOH solution. caluculate the molarity of the NaOH solution.
What is the pH of a solution that results from diluting 0.30 mol acetic acid (CH3CO2H) and 0.20 mol sodium acetate (NaCH3CO2) with water to a volume of 1.0 L?
How much limestone must be decomposed by heating to produce 250.0 grams of lime, CaO?assuming that the limestone contains 95.0% pure CaCO3.
how many moles of NaCl would be made by combining 20,000 moles of Na with 2 moles of Cl
Chemical Kinetics - Show that only the reactants of the slow step of a reaction are found in the rate law of the reaction - which of the two steps is slower and which substance (if any) is probably an unstable intermediate?
Calculate the pH during the titration of 30.00 mL of 0.1000 M KOH with 0.1000 M HBr after 30.26 mL of the acid
ow many milliliters of 0.200 M NaOH will be required to titrate 8 mL of 0.479 M H2SO4
An injection containing 10.0pg 10 5 B was injected into a patient suffering from a brain tumor. The patient was irradiated by a neutron gun at the site of the tumor.
Calculate the heat needed at 0 degrees celsius to make each of the following changes of state. kilocalories to freeze 285 of water.
Important information about Nitration, Explain why nitration of 1,4-dichloro-benzene yields the mononitro derivative while N,N'-diacetyl-1,4-phenylenediamine forms
Two gas tanks are linked by a connecting tube of negligible volume with a valve. One contains 15 L of nitrogen at 7.2 atm of pressure. The other contains 8.3 L of helium at 4.1 atm of pressure.
A gas originally occupies 20L at 24.7 psia and 5 C. What would the pressure be if the volume changed to 4.77ft3 and the temperature was 82 F? Give the answer in atmospheres.
what is the density of a block of marble that occupies 285 centimeters cubed and has a mass of 636 grams? answer in units of g/centimeters cubed.
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