Question 23 of 30 A solution of phosphoric acid ($H_3PO_4$) with a known concentration of 0.250 M $H_3PO_4$ is titrated with a 0.800 M NaOH solution. How many ml of NaOH are required to reach the third equivalence point with a starting volume of 72.0 ml $H_3PO_4$, according to the following balanced chemical equation: $H_3PO_4$ + 3 $NaOH$ ? $Na_3PO_4$ + 3 $H_2O$

          Question 23 of 30
A solution of phosphoric acid ($H_3PO_4$) with a known concentration of 0.250 M $H_3PO_4$ is titrated with a 0.800 M NaOH solution. How many ml of NaOH are required to reach the third equivalence point with a starting volume of 72.0 ml $H_3PO_4$, according to the following balanced chemical equation:
$H_3PO_4$ + 3 $NaOH$ ? $Na_3PO_4$ + 3 $H_2O$

Question 23 of 30
A solution of phosphoric acid (H3PO4) with a known concentration of 0.250 M H3PO4 is titrated with a 0.800 M NaOH solution. How many ml of NaOH are required to reach the third equivalence point with a starting volume of 72.0 ml H3PO4, according to the following balanced chemical equation:
H3PO4 + 3 NaOH ? Na3PO4 + 3 H2O

Added by Ralph C.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Dominique Jan Tan

06/01/2023

Step 1

Given: Volume of H3PO4 = 72.0 mL To convert mL to L, divide by 1000: Volume of H3PO4 = 72.0 mL / 1000 = 0.072 L To calculate the moles of H3PO4, use the molarity: Moles of H3PO4 = 0.072 L * 0.250 M = 0.018 mol Show more…

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Please do the dimensional analysis for this and start with one number. Question 23 of 30: A solution of phosphoric acid (H3PO4) with a known concentration of 0.250 M H3PO4 is titrated with a 0.800 M NaOH solution. How many mL of NaOH are required to reach the third equivalence point with a starting volume of 72.0 mL H3PO4 according to the following balanced chemical equation: H3PO4 + 3NaOH -> Na3PO4 + 3H2O STARTING AMOUNT: 72.0 mL H3PO4 ADD FACTOR: 0.800 M NaOH ANSWER: 6.75 mL NaOH RESET: 0.250 M H3PO4 0.001 L NaOH 7.50 mL H3PO4 0.0675 mol NaOH 1 L NaOH 2 mol H3PO4 1000 mL NaOH 67.5 g NaOH 22.5 mol H3PO4 MH3PO4, M NaOH, mL NaOH, g NaOH, mol H3PO4, g H3PO4, mL H3PO4, mol NaOH, L NaOH, L H3PO4