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Calculate the boling point of a solution prepared by adding 11.5 g naphthalene (C10H8) to 250.0 g of benzene. Naphthalene is a non-electrolyte solute, and benzene is an organic solvent that exhibits a boiling point of 80.10 C and has a kb=2.5C/m.
In a synthesis experiment you obtain a sample of product on which you do a melting point determination and find a melting point range of 108.0 to 114.3 degrees Celsius. The sample is supposed to be benzoic acid.
if 5.00 ml of a solution containing .0400 m iron is placed in a 100.0 ml volumetric flask and filled to the mark with
You are given a worked wooden item from an archaeological dig believed to date to during the last glaciation. As such, the artifact would be another piece of evidence.
Explain how you would recommend controlling exposures for a chemical when no occupational exposure limit (OEL) has been established.
A 3.5514 g of a chromium oxide was found to contain 2.4299 g of chromium and 1.1215 g oxygen. What is the empirical formula for this chromium oxide
would that be the same kind of functional group linking monosaccharides in long chain polysaccharides
What volume of oxygen gas is required to react completely with 1.32 mol of iron according to the following reaction at 0 C and 1 atm
Problem- 2C2H6 (g) + 7O2 (g) ? 4CO2(g) + 6H2O (g) ?H = -1560 kJ How much energy (in kJ) is released if 15.6 g of ethane undergoes combustion
How do you synthesized 3-bromo-3-methyl-2-butanol from 2-methyl-2-butene from the following regents: PBr3, Br2/H2O, NaBr, NaH, HBr/NaBr, Br2/hv. This a three step process.
Caculate the pH of a solution that has 40.00 mL of 0.0900 M NH3 and 0.1000 M HCl is being added at a volume of 35.95 mL
what is the condensed structural formula for 22-dimethyl
Analysis of an unknown substance showed that it has a moderate melting point and is a good conductor of heat and electricity in the solid phase. Which of the following substance would have those characteristics
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