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A sample helium gas takes up 1021 ml at 679 mmHg. For a sample at a consistent temp find out the volume of helium at 745 mmHG?
Calculate the equilibrium constant kc for a reaction occuring at a temp 0f -19 degree C and when delta G of 1.6 KJ/mol(use R =8.314 J/mol and 273 for kelvin conversion)
What is the total number of compounds, stereoisomers included, designated by the general name dichlorocyclopentane
A buffer was formed by mixing 50.0 mL of 0.206M NH4Cl(aq) with 45.0 mL of 0.222M NH3(aq) {Kb (NH3) = 1.8 x10-5 } . What is the pH of this buffer solution?
The hydrogen is slightly acidic, and it is often used as a primary standard for acid-base tritations because it is solid and air-stable, making it easy to weigh accurately. Its molecular formula is KHC8H4O4. Calculate how many mL of NaOH solution ..
what is the conclusion for determination of percent composition in hydrated compound
What is the pH of the buffer that result when 12 g of NaH2Po4 and 8.00 g of NaHPO4 are diluted with water to a volume of 0.50 L. ( Ka of H2PO4- = 6.2*10^-8 , the molar masses of NaH2PO4 and Na2HPO4 are 120.0 g/mol and 142.0 g/mol respectively).
Calculate the standard reduction potential for the reaction for the reaction Cu(III) to Cu(II).
Calculate the hydronium-ion concentration and the pH of a 0.0059 M solution of chloroacetic acid. Ka is 1.3 10-3.
Chloroform, a substance once used as an anesthetic, has a density of 1.483g/ml at 20 "c. How many Milliliters would you use if u needed 9.37g
The bicarbonate buffering system is one of the major pH regulating mechanisms in your blood. which of the following is not a compound formed in th transport of carbon dioxide via this buffering system.
Calculate the maximum yield of benzocaine, in grams, that you could obtain in this experiment based on the amount of p-toluidine used in step 1.
10 M solution of chloroacetic acid, ClCH2CO2H, has a pH of 1.95. calculate Ka for the acid.
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