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What will the pH be if 0.910 g of NaOH (40.00 g/mol) is added to 500.00 mL of a 0.500 M acetic acid/acetate buffer with an initial pH of 4.59? The Ka for acetic acid is 1.8 x 10-5.
Calculate the pH of each of the following strong acid solutions (Remember in dilution M1V1 = M2V2 for part (b)). a. 5.00 mL of 1.00 M HCl diluted to 0.570 L
How many mL of 5.0 M NaOH can be added before its buffering capacity is exhausted?
Give a theoretical explanation for the difference between the boiling point of propane and wax. Describe and explain the relationship between the size of hydrocarbon molecules and their boiling point
Please explain the following technical terms used in mass spectrometry: a) Molecular ion,
When optically active B was treated with CrO3 in pyridine, an optically inactive sample of A was obtained. Heating A with hydrazine in base gave hydrocarbon C, which, when heated with alkaline KMnO4, gave carboxylic acid D. Identify compounds A, B..
calculate the pH of the buffer after the addition of 0.15 mL of 6M HCl based on the known value of Ka for acetic acid
An enclosure of volume 0.398 L has a partial pressure of O2 of 3.50 10-6 torr at 30.°C. What mass of magnesium will react according to the following equation. 2 Mg(s) + O2(g) → 2 MgO(s)
The specific heat of a certain type of cooking oil is 1.75 J/(g·°C). How much heat energy is needed to raise the temperature of 2.69 kg of this oil from 23 °C to 191 °C
Fusion of boric acid with sodium oxide forms a borate salt, Na2BO7. Without writing complete equations, find the mass (in grams) of B5H9 required to form 156g of the borate salt by this reaction sequence.
If each of the following gas samples have the same temperature and pressure, which sample has the greatest volume? A) 1 gram of O2 B) 1 gram of Ar C) 1 gram of H2 D) all have the same volume E) not enough information
The solubility of oxygen in lakes high in the rocky mountains is affected by the altitude. If the solubility of O2 from the air is 2.67 x 10^-4 M ar sea level (1.00 atm) and 25 degrees C
What would be the speed of the following particles if they had the same wavelength as a photon of green light (? = 500.0 nm)? Proton (mass = 1.673 × 10-24 g) Neutron (mass = 1.675 × 10-24 g) Electron (mass = 9.109 × 10-28 g) Alpha particle (mass =..
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