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A 1.0 L solution has a mixture of 0.05 M NaH2PO4 (pKa = 6.86) and 0.10 M Na2HPO4. How much 1.0 M NaOH should be added to bring the solution to pH 7.4?
An object has a mass of 5.95g. Assuming the density of water is 1 g/mL, what is the volume of the object including air?
Draw and name all dienes of molecular formula C5H8. When E and Z isomers are possible, draw and name each stereoisomer.
How many moles of each are present in the eq mixture b)Calculate the equilibrium constant
What effect would the incomplete drying of a sample (for example, the incomplete removal of a recrystallization solvent) have on the melting point
The Ksp for PbSO4 = 2.53 X 10-8. What is the molar solubility of PbSO4 in a 4.20M solution of gallium sulfate?
An automobile gasoline tank holds 35 kg of gasoline. When the gasoline burns, 88 kg of oxygen is consumed, and carbon dioxide and water are produced.
How many moles of NaBrO should be added to 1.00 L of .050 M hypobromous acid (HBrO) to form a buffer solution of pH 9.15. Assume o volume change occurs when the NaBrO is added.
how many metric tons of oxygetn are combined in a sample of pitchblende that contains 2.3 t of
Calculate the ratios of the different kinds of protons in a compound with an integral ratio of 6 : 4 : 18.4 (going from left to right across the spectrum).
In the purification process, the organic layer is washed sequentially with 2 M NaOH, water, and saturated aqueous sodium chloride. What is the purpose of each of these washes and why is cold 2 M NaOH recommended
Using kinetic molecular theiry of gases to explain each of the following: a) A container of nonstick cooking spray explodes when thrown into a fire; b) The air in a hot air balloon rise. c) You can smell the odor of cooking onions from far away.
If you wanted to make a 3 liter solution of 500 mM formic acid buffer at pH 3.9 how many grams each of sodium formate (MW=68g/mol) and formic acid (MW=46g/mol) would you add
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