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Calculate the amount of heat (q) liberated (or adsorbed) in a yeast brew upon fermentation of 100 g of glucose at 25 Celcious and a pressure of 1 bar (STP).
Predict just the first step that might occur between the polyphenol shown below and Na2CO3
Using the Debye-Hucket equation, calculate the activity coefficients for the acidic and basic forms of bromocresol green, HX- and X2-, for a solution with an ionic strength of u=0.1M.
a compound of C, H and N cotains three elements in the ratio 9:1:3.5 . calculate emipirical formula of compound . if mol. wt = 108 . what is its molecular formula
Which of the following bond moments would cancel the lone pair moment? S=O S-F N-H another lone pair Consider the molecules F2, OF2, PF3, CF4, and BF3. Which molecules have a dipole moment?
What is the solubility of ammonia gas if its partial pressure is increased to 1425 mmHg?
If the initial pressure of the ether is 135 torr, what is its partial pressure after 1420 s? (Note, since the volume and temperature don't change, the pressure is directly related to number of moles and so the pressure can be treated similar to co..
What chemical features and properties of detergents make them better than soap for hard water application?
Assuming the density of water is 1.00g/mL at ambient temperature, what is the exact volume (in mL) of the 250-mL Erlenmeyer flask?
Each hemoglobin combine with 4 O2. If 1.02 g of hemoglobin combine with 1.6 ml of O2 at 37degree c and 724torr. What is the molar mass of Hemoglobin
Compute (a) mass of CuSO4 in 2.26 g of CuSO4*5H2O. (b) Define how many grams of this compound are there in 250mL of 0.075 M solution
what volume of carbone dioxide ,measured at STP,would result from the reaction of 9.786 kg of oxygen with excess pentane
The pH of the solution at the equivalence point, The pH of the solution after 40.0 mL of HCl are added.
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