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A solution prepared by dissolving 20.0 mg of insulin in water as well as diluting to a volume of 5.00ml gives an osmotic pressure of 12.5 mm Hg at 300 degree kelvin. Explain what is the molecular weight of insulin?
One mole of an ideal monoatomic gas initially at 300 K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. The molar heat capacity for constant volume for the gas is 32VCR=. Calculate dU, dH, q, w, and the final temperatur..
Show the overall reaction of racemic 3-bromohexane from (E)-3-hexene by entering the structures of the products and reactants in the template provided. (E)-3-hexene (S)-3-bromohexane (R)-3-bromohexane
Use the Henderson-Hasselbalch equation to calculate the pH of a 250 mL solution of 0.3 M acetic acid (pKa = 4.76; assume it is initially fully protonated)
group 2a metal carbonates can react with hydrochloricacideaccording to the overall reactionm?co3s
Predict the shape and polarity of each of the following molecules. Assume all bonds are polar: a) a central atom with four identical bonded atoms and no lone pairs. b) a central atom with three identical bonded atoms and one lone pair. c) a centra..
if the melting point of the compound is unknown the melting point measurement could take an exceedingly long time if
properties of subatomic particles.1. fill in the missing relative masses and relative charges for each of the subatomic
At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure
How many grams of aluminum oxide are produced when 50.3g aluminum react, When 0.510 mole aluminum is reacted in a closed container with 7.90g oxygen, how many grams of aluminum oxide can form?
A 0.7120g specimen of iron ore was brought into solution and passed through a Jones reductor. titration of the Fe(II) produced required 39.21 mL of 0.02086 M KMnO4. express the results of this analysis in terms of (a) percent Fe and (b) percent Fe..
Oxalate ion, C2O4 2-, and permanganate ion,MnO4 -1,react in aqueous basic solution to give carbonate ion, CO3 2-, AND solid manganese dioxide,MnO2. What is the complete and balanced equation
sodium reacts with hydrogen gas. how many grams of sodium are needed to react with 2.50 l of hydrogen measured at stp?
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