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The minimum daily requirement for vitamin C is 60 mg per day. What percentage of this requirement is in one cup (240 mL) of fresh and week-old orange juice.?
a 1.505 g sample of unknown was dissolved in 50 ml of benzenedensity 0.879 gml solution had melting point of 4.70
Draw the conformations of 2,2-dimethylbutane looking down the C2-C3 bond clearly labeling the dihedral angle for each conformer. Name eash conformer . Rank all the conformation in descending order from highest to lowest.
The vapor-pressure lowering upon forming solution can be utilized for determining molecular weight of nonvolatile solutes. Consider a solvent with known P1* and molar mass M1. Upon adding m2 kg of a solute tom1 kg of the solvent, the solution vapo..
You collected a water sample from your shower containing 3.2mM Ca2+ and 1.1 mM Mg2+ whats the hardness of water in terms of CaCO3/L.
If the enthalpy of vaporization of CH2Cl2 is 29.0 kJ mole-1 at 25.0 oC and the entropy of vaporization is 92.5 J mole-1 K-1 , calculate a value for the normal boiling temperature of CH2Cl2
Explain why the benzyl carbocation is more stable than the allyl carbocation?
determine the weight in grams of sodium dihydrogen phosphate nah2po4.h2o fw 138.01 and disodium hydrogen phosphate
Determine whether each of the examples or phrases describes an essential amino acid, a nonessential amino acid, or both essential and nonessential amino acids. A table of amino acids can be found here.
If the electrochemical cell is allowed to operate as a gavanic cell, which solution species will be oxidized, which solution species will reduce. write the sybolic representation for the galvanic cell.
What is the importance and why do companies need Project Management Office in today's changing and complex business environment?
A gaseous mixture of O2 and Kr has a density of 1.184 g/L at 385 torr and 300. K. What is the mole percent O2 in the mixture?
What advantages does liquid chromatography have over TLC. and what advantages does liquid chromatography have.
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