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The root-mean-square (rms) speed of a sample of molecules was found to be 1.8*10^3 m/s at 25.0 degrees C. After heating, the rms speed was found to be 4.6*10^3 m/s. What was the temperature of the sample after heating?
When 36.8g of benzene reacts with an excess of chlorine gass, the acual yield of 38.8g what is the percentage yield?
Which of the following has the highest number of Calories?
An oligomeric protein has a molecular weight of 168000. A 420 mg sample was treated with an excess of 1-fluoro-2,4-dinitrobenzene (Sanger\'s reagent) until the reaction was complete
The assay for Xase has just been worked out, and you have a preparation of cells rich in this enzyme. Given the required equipment and supplies, how would you proceed
A gaseous mixture of O2 and N2 contains 30.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 505mmHg ?
Important information about Redox titration, How do I calculate the moles of iron (ore sample) and how do I calculate the mass percent of iron in the ore from this problem
The solubility of silver chromate, which has a Ksp equal to 9.0e-12 at 25 degrees celsius, is determined in water and in two different solutions. Predict the relative solubility of silver chromate in the three solutions
Why can the nature of the metal salt precursor be changed during the epoxide addition method so easily without altering
What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with 0.400 L of 0.260 M NaI. Assume the reaction goes to completion.
The air pressure in the tires of an automobile is adjusted to 37 psi in SanDiego, where the air temp is 68F. The air in the tires is at the same temp as the atmosphere
the phosphorylation of 2 moles of ADP to ATP and has a deltaG= -135 kJ/mol. What is the deltaG for the conversion of glucose into lactic acid?
Find the pH and percent dissociation of a 0.100 M solution of a weak monoprotic acid having the following Ka value. Ka = 1.0 x 10^-5
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