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PH of solution during titration processQ1: What is the pH of a 0.35 M solution of a weak acid HA with Ka = 1.41×10^-8?
Q2: A 25.0 mL sample of the acid is titrated against 1.9 M NaOH. What is the pH after 5.0 mL of the base has been added?
Q3: What is the pH after 10.0 mL of base has been added?
Q4: What is the pH when 30.0 mL of base have been added?
Compute the amount of heat evolved in the oxidation of 32.0 grams of Fe at the temperature 25 oC and pressure 1 atm pressure ( ΔHfo(Fe 2 O 3 ,s) = -824kJ/mol)
How much heat (in kJ) is required to warm 16.0g of ice, initially at -11.0 C, to steam at 112.0 C? The heat capacity of ice is 2.09 J/g*C and that of steam is 2.01 J/g*C.
compute the enthalpy change, (Delta H), for this reaction per mole of A. suppose that the specific heat =[4.18J/(g*Degrees C) and density=1.00(g/mL)?
How much ice(in grams) would have to melt to lower the temperature 352ml of water from 25degrees celcus to 5 degrees celcus? ( assume the density of water is 1.0g/ml)
What is the heat change of H 2 O If the final temperature of the mixture = 25 degree celsius?
determine how many grams of CaH 2 are required to generate 145 Litres of hydrogen gas if the pressure of hydrogen is 825 mm Hg at temperature of twenty one degree Celsius? .
Describe the process design and application - Water and Wastewater Treatment
Considering the given equation 2 C8H18 + 25 O2 --> 16 CO2 + 18 H2O in which The combustion of octane produces carbon dioxide and water , determine the mass of water.
How many grams will remain after 98.0 days if Phosphorus-32 has a half-life of 14.0 days Starting with 6.00g of ,?
determine K for this reaction When a sample of 5.63 grams of pure C 5 H 6 O 3 (g) was sealed into an otherwise empty flask of 2.50 L and heated to 200.
Write down the electron configuration of the B+ ion using the noble gas core notation and What you will expect for the molecular formula, C7H6O2( Benzoic acid) if Determination of The molar mass of benzoic acid
What hybrid orbital would be expected for the central atom in each of the following: Draw the molecular structure of these compounds and label Ï? and Ï?bonds.
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