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A student is given a solution containing 0.932 g of an unknown acid, H2A(aq) To determine the molar mass of the acid, the student titrates the sample using a 0.481 M solution of KOH(aq).
-Write the balanced equation for the reaction taking place. Include states of matter.
-If 28.9 mL of KOH is required to consume the acid completely, calculate the moles of H2A.
-Calculate the molar mass of H2A.
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A 10.0 mL sample of liquid bleach is diluted to 100. mL in a volumetric flask. A 25.0 mL aliquot of this solution is analyzed using the procedure in this experiment. If 12.1 mL of 0.30 M Na2S2O3 is needed to reach the equivalence point, what is th..
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the specific rotation of r--glyceraldehyde is 8.7. if the observed specific rotation of a mixture of r-glyceraldehyde
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A 0.1000 m aqueous solution of a weak acid, HA, is 1.5% ionized. At what temperature does it freeze? Kf for water = 1.86°C/m.
If the initial concentration of A=2.5 mol/L, the initial [B]=1.4 mol/L, and the rate =0.29 moles of product per liter per minute (M/min). Calculate the rate constant K to 2 decimal places.
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