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Calculate the concentration of OH- and the pH value of an aqueous solution in which [H3O+] is 0.014M at 25°C. Is this solution acidic, basic or neutral?
Suppose you have a solution that might contain any or all of the following cations: Cu2+, Ag+, Ba2+, and Mn2+. Addition of HCl causes a precipitate to form.
Draw and name all dienes of molecular formula C5H8. When E and Z isomers are possible, draw and name each stereoisomer
Considering the given equation 4 C3H5N3O9---> 6 N2+ 12 CO2 + 10 H2O + O2,This reaction generates many gaseous products and a large amount of heat determine what is the maximum amount of Oxygen.
Which element formed, according to the theory of the Big bang, before the first generation of galaxies formed
it takes 261 kj/mol to eject electrons from a certain metal surface. what is the longest wavelenght of light(nm) that can be use to eject electrons from the surface of this metal via the photoelectric effect?
At 580 nm the wavelength of its maximum absorption, the complex FeSCN2+ has a molar absorptivity of 7X10^3 L cm-1 mol-1 calculate
What volume of ammonia gas could be produced at 100% yield when 3.7 moles of hydrogen reacts with 1.3 moles of nitrogen
In the following conditions calculate the moles of hydrogen and the pressure in each flask where the volume is negligible. Each flask is originally 275K with .455 mols of hydrogen gas and .7atm of pressure. Then one flask is heated to 500K while t..
Problem- Place the following gases in order of decreasing average molecular speed at 34?C: Ne, HBr, SO2, NF3, CO.
When sodium reacts with water, 255 mL of hydrogen gas forms along with sodium hydroxide. What mass of sodium is needed for this reaction?
The combined stream fed into the evaporator. The concentrated stream that leaves the evaporator contains 49.4 % K2CrO4 by mass. This stream is fed into a crystallizer, in which it is cooled, causing crystals of K2CrO4 to precipitate as well as the..
When a person with hypoventilation is placed on a ventilator, an air mixture is delivered at pressures that are alternately above the air pressure in the person's lung, and then below. How will this move oxygen gas into the lungs, and carbon dioxi..
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