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1. The spectral analysis of a chemical compound gave the following composition on a mass basis: 29.1% Na, 40.5% S, 30.4% O. Determine the chemical formula of this substance (i.e., find x, y, and z in NaxSyOz).
2. How many lbm are in 1 lbmole of
a. C12H22O11 (sucrose, a typical carbohydrate).
b. C57H110O6 (stearin, a typical fat).
c. C3032H4816O872N780S8Fe4 (human hemoglobin, a typical protein).
a student reported the follow ing percentages for his unknown mixture 25nh4cl 30 nacl and 50 sio2. assuming that the
The heat of fusion of water is 335 J/g. How much heat would be required to melt 47.5 g of ice?
Compute the boiling point of this solution: 1.00 X 10^2g C10H8O6S2(1,5-naphthalenedisulfonic acid) in 1.00 X 10^2g H2O (nonionizing solute).
The statements in the following multiple choices deal with the concept of equilibrium. Choose the statement which is true. a) At equilibrium the speed of a reaction equals its rate constant.
Explain which of the following statements about quantum theory is incorrect. a) The energy and position of an electron cannot be resolute simultaneously.
Hydration of alkynes (via oxymercuration) gives good yields of single compounds only with symmetrical or terminal alkynes. Draw the major organic product(s) formed when hex-2-yne undergoes hydration in the presence of HgSO4 and H2SO4.
a. Is there sufficient evidence to conclude that the mean airline take off deviation is not zero at the 0.05 level of significance? b. Suppose the executive took a sample of 100 take off deviations and found the same sample mean and standard devi..
How many kilograms of chalcopyrite must be mined to obtain 325g of pure Cu?
What concentration should you make your stock solution of vincristine in order to make this 5uL addition?
The amount of heat needed to raise the temperature of 25 g of a substance by 15°C is 915 J. What is the specific heat of the substance?
Sodium hydroxide can habitually be used in place of sodium bicarbonate but it cannot be utilized in the procedure 2-methyl-2 butanol and hcl because of a complicating side reaction. State a reaction that might occur if NaOH is present.
when you heated the hydrated compound this process starts slowly at first find out the reason behind this?compute k for
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