Question

A student titrated 38.00 mL of a 0.522 M sodium hydroxide solution with 25.00 mL of...

A student titrated 38.00 mL of a 0.522 M sodium hydroxide solution with 25.00 mL of a 0.785 M hydrochloric acid solution. Which is the limiting reagent? How many mL of excess reactant will remain?

Homework Answers

Answer #1

NaOH + HCl --> NaCl + H2O

38.00 mL of a 0.522 M sodium hydroxide
number of mols = molarity * volume of solution
= 38 ml * 0.522 M

= 19.836 milli mols

25.00 mL of a 0.785 M HCl

number of mols = molarity * volume of solution
= 25 ml * 0.785 M

= 19.625 milli mols

NaOH : HCl is in 1:1 mol ratio; that means 1 mol NaOH neutralizes 1 mole HCl

Here number of mols of NaOH present is more than number of mols of HCl present
this makes HCl as limiting reactant . The reaction will stop once all HCl is consumed
*****Limiting reactant = HCl
*****Excess reactant = NaOH

mols of NaOH excess =19.836 milli mols-19.625 milli mols
= 0.211 milli mols
volume of excess NaOH = number of mols/molarity of NaOH
= 0.211 milli mols/0.522 M = 0.404 ml

Volume of excess NaOH = 0.404 ml
******************************************

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
During a titration experiment, a student titrated 25.00 mL of a 0.100 M sodium hydroxide solution...
During a titration experiment, a student titrated 25.00 mL of a 0.100 M sodium hydroxide solution with 5.10 mL of a 0.250 M sulphuric acid solution. What is the pH of the resulting solution?
In the reaction of hydrochloric acid and sodium hydroxide, 100.0 ml of 0.1234M hydrochloric acid reacts...
In the reaction of hydrochloric acid and sodium hydroxide, 100.0 ml of 0.1234M hydrochloric acid reacts with 50.00ml of 0.5432M sodium hydroxide. Will the final solution be more acidic or more basic? How many mole of excess acid ir base will remain? What is the final (H+) and what is the final pH?
How many mL of a 0.81 M sodium hydroxide solution are required to react completely with...
How many mL of a 0.81 M sodium hydroxide solution are required to react completely with 74 mL of a 0.12 M hydrochloric acid solution? Report your answer to the nearest mL.
If a sample of sodium hydroxide is titrated with 50.00 mL of 0.400 M nitric acid,...
If a sample of sodium hydroxide is titrated with 50.00 mL of 0.400 M nitric acid, how many grams of the base are in the sample?
40.0 mL of 0.200 M Sodium Hydroxide solution is mixed with 25.0 mL of 0.300 M...
40.0 mL of 0.200 M Sodium Hydroxide solution is mixed with 25.0 mL of 0.300 M Magnesium Chloride solution. Calculate the theoretical yield of Magnesium hydroxide and the molarity of the excess reactant following the reaction
A student titrated a 25.00 mL sample of a solution containing an unknown weak, diprotic acid...
A student titrated a 25.00 mL sample of a solution containing an unknown weak, diprotic acid (H2A) with NaOH. If the titration required 17.73 mL of .1036 M NaOH to completely neutralize the acid, calculate the concentration (in M) of the weak acid in the sample.
An unknown diprotic acid was fully titrated with 0.1599 M sodium hydroxide solution to determine the...
An unknown diprotic acid was fully titrated with 0.1599 M sodium hydroxide solution to determine the molar mass of the unknown. If it took 34.98 mL of sodium hydroxide solution to fully react with 0.2518 g of unknown acid, determine the molar mass of the acid (in g/mol). Molar mass of diprotic acid: g/mol
Calculate the pH of a solution prepared by mixing 20.0 mL of 1.00M hydrochloric acid with...
Calculate the pH of a solution prepared by mixing 20.0 mL of 1.00M hydrochloric acid with 10.0 mL of 1.00M sodium hydroxide. (Indicate the limiting reactant and reactant in excess below) please help me with this question step by step, is there any formula to solve this question?
A sample of 9.02 g of solid calcium hydroxide is added to 35.5 mL of 0.260...
A sample of 9.02 g of solid calcium hydroxide is added to 35.5 mL of 0.260 M aqueous hydrochloric acid. Enter the balanced chemical equation for the reaction. Physical states are optional and not graded. A) What is the limiting reactant? B) How many grams of salt is formed after the reaction is complete? C) How many grams of the excess reaction remain after the reaction is complete?
A sample of 8.90 g of solid calcium hydroxide is added to 26.0 mL of 0.190...
A sample of 8.90 g of solid calcium hydroxide is added to 26.0 mL of 0.190 M aqueous hydrochloric acid. Enter the balanced chemical equation for the reaction. Physical states are optional and not graded. A) What is the limiting reactant? B) How many grams of salt is formed after the reaction is complete? C) How many grams of the excess reaction remain after the reaction is complete?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT