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The NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. Explain what is the pH of a solution that is 0.037 M in NH4Cl?
What is the theoretical yield of carbon dioxide. What is the percent yield of carbon dioxide
What does it this mean according to the amount of pyrene and TiO2 added , the surface coverage (mol/g) could be caculated so if i have pyrene/TiO2= 50mg how can i caculate the surface coverage. water 50ml. it is sufrace coverage= 2x10^-5 mol/g
Calcium carbide, CaC2 reacts with water to form acetylene. CaC2(s)+2H2O(l) ==> C2H2(g)+ Ca(OH)2(s)
WHen dimethyl ether (CH3OCH3) is burned, 1450 kj of heat are released per mole. How much heat is released when 3.89 grams of dimethyl ether is combusted
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 J/g ^\circ {\rm C} and that of steam is 1.84 J/g ^\circ {\rm C}. q=?kJ
At a certain concentration of reactants the rate of appearance of water in the following reaction is 0.26 M/s.
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O, is a chiral compound, contains ONLY one functional group, and is a(n) alkane.
What is the [H3O+] in a solution that has a pOH of 2.29? Use E notation and 3 significant figures. Is the solution 1.95X10^12? show me how you got it as well
the amount of product (3.80 mol P2O5) formed from the given amount of phosphorus and excess oxygen. In Part B, you found the amount of product (3.40 mol P2O5) formed from the given amount of oxygen and excess phosphorus.
How many moles of CaF2 will dissolve in 3.0 liters of 0.150 M NaF solution? (Ksp for CaF2 = 4.0 x 10-11).
What is the pH change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.140 M with no change in volume?
a helium-filled balloon of the type used in long-distance flying contains 1.2 107 l of helium. let us say you fill the
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