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Problem- Calculate the mass of Sodium Acetate(NaCH3COO) you should add to 500 mL of a .150 M solution of Acetic Acid(CH3COO) to buffer a solution at a pH of 4.5
Please show computation work no word count
What will happen when AgNO3 (aq) solution is added to a NaCl (aq) solution? Explain and write the molecular and net ionic equations for the reaction
At 23.6 degrees Celsius, 0.500 L of a solution containing 0.302grams of an antibiotic has an osmotic pressure of 8.34 mmHg. Explain what is its molecular mass
0.102g of an unknown compoud dissoleved in 100. ml of water has an osmotic pressure of 28.1 mmHG at 20 degrees celcius. Calculate the molar mass of the compound.
At body temperature 37 C, Ka for aspirin equals 3 x10^ - 5.If two aspirin tablets, each having a mass of 325 mg, are dissolved in a full stomach whose volume is 1 L and whose pH is 2, what percent of the aspirin is in the form of neutral molecules
CaCO3 (100.1 g/mol) has a solubility of 0.018 g/100 mL in water at 35?C. What is the value of Ksp at this temperature?
it is found that the equilibrium concentrations in a 5.00 L rigid container are [H2] = 0.0500 M, [F2] = 0.0100 M, and [HF] = 0.400 M. If 0.338 mol of F2 is added to this equilibrium mixture, calculate the concentrations of all gases once equilibri..
The standard reduction potential for a substance indicates how readily that substance gains electrons relative to other substances at standard conditions. Consider the following: Ni2+(aq)+2e- -> Ni(s), E red = -0.23 V Cu2+(aq)+2e- -> Cu(s), E red ..
The theoretical value can be computed from the atomic weights of the atoms involved. How
Question- Part 1) A 0.030 M solution was prepared by dissolving dipotassium cysteine, K2C, in water. Then 40.0mL of this solution was titrated with 0.060 M HClO4. Calculate the pH at the first equivalence point.
Find the velocity of an electron emitted by a metal whose threshold frequency is 2.32×1014 when it is exposed to visible light of wavelength 5.10×10?7
Calculate the molar mass of the earth's atmosphere at an altitude of 500 km where the pressure is 1.6 x 10-11 bar, the temperature is, on average, 1580K and the density is 2.2 x 10-12 g/L
4.41-g sample of a salt dissolves in 9.10 g of water to give a saturated solution at 25°C. What is the solubility (in g salt/100 g of H2O) of the salt.
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