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Exactly 20.00 mL of standard 0.1171 M Ca(OH)2 are titrated with a solution of citric acid, H3C6H5O7. If 17.43 mL of the citric acid solution are required to reach the endpoint, what is its molarity? (Hint: In order to calculate the correct answer, you must first determine the balanced equation for the titration reaction.)
A solution of water (1.86) and glucose freezes at 3.95. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 .
Fluorite, a mineral of calcium, is a compound of the metal with fluorine. Analysis shows that a 2.26 g sample of fluorite contains 1.50 g calcium. Calculate the following. (a) mass of fluorine in the sample
Suppose a piece of silver jewlery contains 5.00 * 10^22 of silver. how many dozens of silver atoms are in the piece of jewlery.
calculate the molar concentration of all the ions remaining in solution after the reaction has taken place ... Cr(III), hydroxide, potassium, nitrate
Be specific of what type of compound butane is (ionic or covalent). If it isionic, mention which is the cation and which is the anion. Discuss how the ions formed
How many moles of methanol are present in a 150.0 gram sample of methanol,CH3OH
Oxygen gas, generated by the reaction 2KClO3(s) ? 2KCl(s) + 3O2(g), is collected over water at 27°C in a 3.78-L vessel at a total pressure of 730. torr. (The vapor pressure of H2O at 27°C is 26.0 torr.) How many moles of KClO3 were consumed in the..
solving this question helps the student to understand how to find the limiting reactant and how much product is
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2Al(s)+6HCl(aq) yeilds 2AlCl3(aq)+3H2(g). what mass of Al(s) if required to produce 725.5 mL of H2(g) at STP
If a 0.20 M acid with a smaller Ka than benzoic were titrated with the same NaOH, how would the equivalence point pH and volume compare to the equivalence point pH and volume of benzoic acid
What volume of 18.5 C Water must be added together , with a 1.23 kg piece of iron at 68.5 C , so that the temprature of the water in the insulated container such as the temprature remains constant at 25.6 C
Following the instruction for the standardization of sodium hydroxide a student took 3.5 gms of KHP (MWt 204.2g/mol) and titrated the solution formed with the given sodium hydroxide solution.
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