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You require a buffer with pH of 4.50. You have 1.00L of a solution of 1.80M acetic acid. How many grams of solid sodium acetate (NaC2H3O2, molar mass 82.0g/mol) must be added to give the pH of 4.50? The pKa of acetic acid is 4.74. Show all your work please.
Basically I did a lab on excel with given data from the instructor. Explain which part of the curve changes as Ksp is varied and why
If you started a reaction with 2.00mmol of cyclopentanone (0.18ml) and 8.00mmol of benzaldehyde (0.81ml) what is the theoretical of the final product dibenzalcyclopentanone
Draw the structure of diacetylferrocene. comment on the distribution of the two acetyl groups over the two aromatic rings: are they likely to be on the same ring or on different rings? Clearly explain your rationale.
a student collects 31.8 mL of argon gas at a temperature of 21 Celsius and a pressure of 755 mmHg. What is the volume of argon at STP?
A cube of osmium metal 1.500cm on a side has a mass of 76.31g at 25°C. Calculate the mass of 0.1500L of benzene at this temperature.
A mixture of CaCO3 and CaO weighing 0.705 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.474 g.
250-ml erlenmeyer flask : Contains 20.0 g sucrose, 2.0 g yeast, 175 ml DI water, and 20.0ml Pasteur's salts. The flask is fit with a one-hole rubber stopper with a glass tube leading to a beaker. Determine theorectical yield in grams and milliters ..
A 25.0-mL sample of 0.150 M butanoic acid is titrated with a 0.150 M NaOH solution. What is the pH before any base is added? The Ka of butanoic acid is 1.5 x 10-5.
Given that the 50.0 mL of 0.12 M weak acid is titrated with 0.20 M NaOH and Ka = 1.8x10-5, calculate the predicted volume of base (Vb) needed to be added to achieve a pH of 7.00.
Draw Lewis structures to determine which of the following compounds exhibit resonance. Enter the letters corresponding to all those compounds which exhibit resonance
what happens to the entropy of the system upon opening the valve between the flasks? 1. The entropy remains the same. 2. There is too little information to assess the change. 3. The entropy decreases. 4. The entropy increases.
a brick is initially 12.67 cm high and an aluminum can is initially 12.68 cm high. by how much must their
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