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A volume of 40.0g of aqueous potassium hydroxide was titrated against a standard solution of sulfuric acid. What was the molarity of the solution if 25.7g of 1.50M was needed?
Wiki User
∙ 13y ago
M = n ÷ V
M-Molarity (mol/l)
n- moles
V- volume in liters.
Volume cannot be expressed in grams....
Wiki User
∙ 13y ago
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What primary standard is used to titrate against potassium hydroxide?
HCl, hydrochloric acid, is the primary standard used to titrate against potassium hydroxide.
Is potassium hydroxide a gas?
Potassium hydroxide is a solid at the standard room temperature and pressure. It has a melting point around 1200 K.
How to prepare a standard solution of potassium iodate?
it is primary standard........ but before making solution dry it at 120. C
Why KCl is used as standard in conductivity meter?
Potassium chloride is very stable and also fully dissociated in water solution.
Is sodium hydroxide solid?
Yes. Sodium hydroxide is solid under standard conditions, but it is often distributed in an aqueous solution.
WHAT IS THE STANDARD HEAT FORMATION OF POTASSIUM HYDROXIDE (S)?
The standard enthalpy of formation for potassium hydroxide is -425,8 kJ/mol.
What primary standard is used to titrate against potassium hydroxide?
HCl, hydrochloric acid, is the primary standard used to titrate against potassium hydroxide.
Is potassium hydroxide a gas?
Potassium hydroxide is a solid at the standard room temperature and pressure. It has a melting point around 1200 K.
How to prepare a standard solution of potassium iodate?
it is primary standard........ but before making solution dry it at 120. C
What can affect purity of aspirin?
Firstly place 100 to 150 mg of aspirin into a 125 ml conical flask. Next proceed to mix in 15 ml of 95% ethanol solution and add 2 drops of phenolphthalein indicator. Then use the titration method to mix this solution against a standard solution of sodium hydroxide from a burette. Using the value obtained from the titration calculate the molarity of the aspirin. Then calculate the ratio of the observed molarity of aspirin with its theoretical molarity and finally multiply this ratio with 100 to obtain the percentage purity of the aspirin sample.
Which other primary standard can be used to standardize sodium hydroxide other than KHP?
sodium hydroxide is a secondary standard because it absorb the moisture from the air and its concentration will change
What is the solute and solvent of potassium nitrate solution?
The enthalpy of solution of potassium nitrate is +34.9kJ/mol.
How many salt is in a salt solution?
The salt content of a salt solution can be found from the solutions' molarity. Any solution with a salt content can be called a salt solution. There is no one set standard which determines the amount of salt which must be in a solution for it to be a salt solution.
What is the pH of a 0.0001 M solution of potassium hydroxide?
potassium hydroxide: KOH you'll need the Ka of it, Ka = [OH-][K+] / [KOH] ; OH and K have the same concentrations, so they're equal, so they can be represented by x. when you have the concentration of OH then you multiply it by -log[OH-], but then you'd have pOH, so just do 14-[-log[OH-]
How do you make standard Mn solution?
Dissolve a known amount of potassium permanganate in a known volume of demineralized water; calculate the concentration of manganese in the solution.
Why KCl is used as standard in conductivity meter?
Potassium chloride is very stable and also fully dissociated in water solution.
What would be the effect of placing the standard sodium hydroxide in a beaker which contained some residual water in the breaker?
The standar solution is now falsified.
