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Complete a titration of a pure weak triprotic acid and merely see two major pH jumps. One at 10.0mL and one at 15.0mL. Explain at what volume is the other equivalence point?
The equilibrium vapor pressures of water at 25*C and 50*C are 3.16 kPa and 12.51 kPa, respectively. Consider a 1.00 L sample of air at 50*C, with 45% relative humidity, trapped in a rigid cylinder. Suddenly the temperature of the gas is reduced to..
A student added more KSCN solution that instructed when making standard solution. assuming no other errors were made in the experiment
Use this information to calculate the heat of fusion
gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (c6h12o6 ) and oxygen gas.
table salt and sugar are accidentally mixed a 4.90g sample is burned and 2.20-g of co2 is produced. what is the mass
What is the pH of a buffer solution made with 20 g of acetic acid and 30 g of sodium acetate in 450 mL of water? (Ka = 1.8 x 10-5). If concentrated HCl is added, will the pH increase or decrease?
question if a system has 5.00 times 102 kcal of work done to it and releases 5.00 times 102 kj of heat into its
Calculate the pH of a solution formed by mixing 5.00 mL of 0.015 M HBr with 20.0 mL of 0.200 M HCL.
propane c3h8 is burned in a combustion chamber at a flow rate of 25.50 m3min with 30.0 excess air. if the propane and
If I add 1.65 L of water to 112 grams of sodium acetate...What is the molality of NaC2H3O2 in this solution?
5.0 mL of 12 M NH3 is added to 500 mL of 0.050 AgNO3. What concentration of silver ion will exist after equilibrium is established. [Kf for Ag(NO3)2 is 1.5 x 10^7]
Sulfuric acid is added to potassium permanganate. Then hydrogen peroxide is added. Identify the product. Complete the redox reaction and balance it under acidic conditions.
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