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svp [43]
3 years ago
7

A student titrates an unknown amount of potassium hydrogen phthalate (KHC8H4O4, abbreviated as KHP) with 21.30 mL of a 0.1161 M

NaOH solution. KHP (molar mass
Chemistry
1 answer:
schepotkina [342]3 years ago
7 0

Answer:

0.5050g of KHP were titrated

Explanation:

<em>... (molar mass = 204.22 g/mol) has one acidic hydrogen. What mass of KHP was titrated (reacted completely) by the sodium hydroxide solution?</em>

<em />

The KHP is a salt used as standard to determine concentrations of bases as NaOH solutions. The reaction that occurs is:

KHP + NaOH → KP⁻Na⁺ + H₂O

<em>Only 1 hydrogen is acidic. Only 1 hydrogen reacts with NaOH</em>

In the reaction you can see that 1 mole of NaOH reacts per mole of KHP

To find mass of KHP we need to determine its moles finding moles of NaOH (The moles of KHP required to reach endpoint = Moles of NaOH added):

<em>Moles NaOH:</em>

21.30mL = 0.02130L * (0.1161mol / L) = 0.002473 moles of NaOH = Moles KPH

With mass of KHP and its molar mass we can solve the mass of KHP:

0.002473 moles of KHP * (204.22g/mol) =

<h3>0.5050g of KHP were titrated</h3>
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8 0
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Read 2 more answers
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What happens if metal is in acid?<br> I'm having a blank
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5 0
2 years ago
Cho biết độ tan của NH4Cl trong nước ở 20oC và 70oC lần lượt là 37,2 g/100 gam nước và 60,2 gam/100 g nước. Hòa tan 166,8 gam NH
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What is the minimum amount of 6.0 M H2SO4H2SO4 necessary to produce 25.0 g of H2(g)H2(g) according to the reaction between alumi
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2.083 Liters of 6.0 M solution sulfuric acid is required. This solved using molecular calculations and Titration.

Solution: 2Al(s)+3H_2SO_4(aq) = Al_2(SO_4)_3(aq)+3H_2(g)

Moles of hydrogen gas =  \frac{25}{2} = 12.5 mol

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<h3>What is Titration?</h3>
  • Titration, commonly referred to as titrimetry, is a typical quantitative chemical analysis method used in laboratories to ascertain the unidentified quantity of an analyte .
  • Titration is frequently referred to as volumetric analysis because it relies heavily on volume measurements. The titrant or titrator is a reagent that is prepared as a standard solution.
  • To determine concentration, a solution of the analyte or titrand reacts with a known concentration and volume of the titrant. The titration volume is the amount of titrant that has responded.
  • Titrations come in a variety of forms with various protocols and objectives. Redox and acid-base titrations are the two most typical types of qualitative titrations.

To learn more about titration with the given link

brainly.com/question/2728613

#SPJ4

8 0
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