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What is the stoichiometric coefficient for oxygen gas when the following reaction is balanced using the smallest whole number coefficients?
C4H10(g) + O2(g) → CO2(g) + H2O(g)
prove from the first principles and basic material balance considerations that the chemical potentials of two phases at
If you had to choose one type of epithelial tissue that is more important than the others, what would you select? Explain.
A 50.0 mL aqueous solution containing 1.08g of a blood plasma protein (a molecular compoud) was found to have an osmotic pressure of 5.85 mmHg at 25degreesC. What is the molar mass
Nitrogen gas can be obtained either from reduction of ammonia gas or from air. State giving reasons which of the two sources you would recommend to an industria
Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C?
Draw the conj acid of this base and use its structure to explain why it is so basic (resonance forms may help). The pKa of the conj acid is about 26. What is the pKb of the free base?
If a patient ingests 220 ml of a saturated barium sulfate solution, how much toxic Ba+2 ion has the patient consumed?
Consider the following two reactions: A (arrow) 2B Delta H rxn = 456.7 kJ/mol A (arrow) C Delta H rxn = -22.1kJ/mol
When 189.4 g of ethylene (C2H4) (molar mass= 28.05 g/mol) burns in oxygen to give carbon dioxide and water, how many grams of CO2 (molar mass= 44.01 g/mol) are formed? C2H4 + 3O2 --> 2 CO2 + 2H2O
A powder contains benzoic acid mixed with starch. A student finds that a 2.96 g sample of the powder needs 39.91mL of a 0.096M sodium hydroxide solution for the acid to be neutralized. Explain what is the percent by mass of benzoic acid in the pow..
Radiation with a 58.4 nm of wavelength interacts with a H 2 (hydrogen atom)and induces the ejection of an electron then determine the kinetic energy of the departing electron express your answer in eV?
Calculate the molarity of a solution made by adding 21.7 mL of concentrated potassium hydroxide (34.5 % by mass, density 1.46 g/mL) to some water in a volumetric flask
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