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The molar mass of cellulose is approximately 6.0 x 105 g/mol and the molar mass of a soluble starch is on the order of 4.0 x 103 g/mol. The monomer unit in both of these molecules has the emperical formula C6H10O5. The uits are about 5.0 x 10-10 m long. About how many units occur in each molecule, and how long are the molecules of cellulose and starch as a result?
A mixture of nitrogen and oxygen gas is collected by displacement of water 30 degrees celsius and 700 torr Hg pressure. If the partial pressure of nitrogen is 550 torr Hg, what is the partial pressure of oxygen? (Vapor pressure of H2O at 30 degree..
Calculate the work associated with the compression of a gas from 121.0L to 80.0 L at constant pressure of 20.7 atm.
The rate constant for a certain reaction is K = 8.90×10^-3 . If the initial reactant concentration was 0.950 M, what will the concentration be after 14.0 minutes.
silicon si has three naturally occurring isotopes 28si 29si and 30si. determine the number of protons neutrons and
A rigid container of O2 has a pressure of 388kPa at a temperature of 713K. What is the pressure at 273K.
Below are five statements about the temperature dependence of a reaction rate constant K. Which one statement holds true for most chemical reactions
which salts are more effective for cold and hot packs kno3 nh4no3 mgso4 cacl2 mgcl2? which are most cost effective?
A certain human gene was shown to have only 80% of its DNA sequence identical to that of an ape, but its corresponding protein sequence has 95% identity
A compound A(C6H6) undergoes catalytic hydrogenation over lindlar catalyst to give a compound B, which in turn undergoes ozonolysis followed by workup with aqueous H2O2 to yield succinic acid and two equivalents of formic acid.
Which compund shown with its dipole moment is expected to exhibit the smallest percent ionic character
considering this given equation as 2no o2 --gt 2no2 this is believed to occur by the mechanism 2no--gt n2o2
Use the de Broglie relationship to determine the wavelengths of the following objects: an lithium atom moving at 2.5*10^5m/sUsing Heisenberg's uncertainty principle,
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