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Problem- 1) Determine the %KHP in an unknown sample (mass = 645 mg) that required an average of 15.27 mL of 0.0988 M NaOH to reach the endpoint. Show calculations.
2) If you prepared a solution of KOH by weighing out 6.255 g of solid KOH that had a purity of 87.5% and then diluted this to a final volume of 1 L in a volumetric flask, what would be the %KHP in an unknown sample (mass = 0.601 g) if it required 21.36 mL of KOH titrant to reach the endpoint? Show calculations.
I am needing of complete solution for this problem please help me out to get right solution
Describe the preparion of 1.00 liters of a 1.00 M acetate buffer, pH 6.00, starting from a 17.40 N solution of glacial acetic acid
Please do not respond to this post as this is a duplicate post. The same question has been posted twice by mistake and there is no need for a response to this.
The coinage metals -- copper, silver and gold -- crystallize in a cubic closest packed structure. Utilize the density of silver (10.5 g/cm3) as well as its molar mass (107.9 g/mol) to compute an approximate atomic radius for silver.
Calculate the number of milliliters of stomach acid neutralized by 1 tablespoon of milk of magnesia (1 tablespoon = 3 teaspoons).
If sealed glass bottle containing an organic solvent is dropped and breaks, pieces of glass may be propelled outwards because of build-up pressure that forms in the bottle. explain which is more dangerous a liquid pentane or liquid decane
Write a balanced equation for the acid-base reaction between benzoic acid and KOH. Using a pKa table, predict which way the equilibrium is favored.
Question- Apple wood is known to be one of the best firewoods available. It produces a hot, aromatic fire and little ash. You are interested in determining the amount of heat available from a cord of apple wood
Chlorine was previously identified as a catalyst in the breakdown of ozone into oxygen gas. Using the enthalpy of reaction for two reactions with ozone, determine the enthalpy of reaction for the reaction of chlorine with ozone.
the system h2g i2g ?? 2 hig is at equilibrium at a fixed temperature with a partial pressure of h2 of atm a partial
In this experiment a hot metal block at 100oC is added to cold water in a calorimeter. The heat lost by the metal block equals the heat gained by the water and the two end up at the same temperature.
Question- Determine the pH of a solution that contains 0.15 M HNO2 and 0.20 M NaNO2. For HNO2, Ka=5.1*10-4. Provide complete answer.
What is the de Broglie wavelength in cm, of a 11.9 g hummingbird flying at 1.12 102 mph? (1 mile = 1.61 km.)
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