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Washing soda is often added to detergent formulations to make the wash water more basic. What is the formula of the NONHYDRATED form of washing soda? Does it increase or decreased the pH of the wash water?
When 76.0 grams of calcium and 36.9 grams of nitrogen gas undergo a reaction that has a 90.0% yield what mass of calcium nitride is formed?
A solution is prepared by dissolving 17.75 g Sulfuric acid (H2S04;MW = 98.0g/mol) in 93.2 g of water. If the density of the solution is 1.1094g/mL, what is the molarity of the sulfuric acid?
One mole of an ideal gas is heated from 100 C to 322.4 C at constant VOLUME. Report the heat added (in kJ and three significant digits) to this gas to achieve this heating
Given Ksp {Fe(OH)2}= 1.6x10-14 and Kb(NH3)=1.8X10-5. What concentration of ammonia is necessary to start to precipitate ferrous hydroxide {Fe(OH)2} from a solution of 0.0030M FeCl2
Identify the statements that accurately describe how hydrogen ion concentration relates to energy production in oxidative phosphorylation.
Calculate deltaH and deltaS for the transformation pb (s,25 degrees) (arrow) pb(l,400 degrees). What is the standard entropy of pb(l) at 400 degrees?
calculate the molarconcentration of oxygen in water at 25 celsius for a partialpressure of 0.23 atm. the henry's law constant for oxygen
Which choice is closest to the longest wavelength that will remove an electron from the n=3 level of the hydrogen atom? (hint: what would you use for the value of nfinal when the electron is completely removed from the atom?)
2H2S (g) + 3O2 (g) → 2H2O (g) + 2SO2 (g) If 3.50 g of H2S are used in the above reaction, what will be the theoretical yield of water in grams.
What is the theoretical yield of aspirin if 153 kg of salicylic acid is allowed to react with 179 kg of acetic anhydride?
A 2 mL solution containing 1.40 uCi/mL is injected into the blood stream of a patient. After dilution, a 1 mL sample is withdrawn and found to have an activity of 2.9 * 10-4uCi. Calculate the blood volume,
Hydrogenation of carbon double bonds C=C (i.e. adding a hydrogen on each carbon atom and thus reducing the double bond into a single bond: H-C-C-H) is a very common process in organic and polymer chemistry
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