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You know that a number 8 less than 60 is the number 52. So, you could rewrite your answer from the previous part as, "What number can you multiply by 4 to get 52?" This is just the definition of 52 divided by 4! So, what is the number you are looking for?
calculate how many grams of the product form when 2.6g of CaO completely reacts CaO(s)+CO 2 (g)?CaCO 3 (s) For the reaction, calculate how many grams of the product form when 2.6g
If you have 230 mL of water at 25 deg celcius and add 140 mL water at 95 deg celcius. What is the final temperature of the mixture?
Calculate the pH of the buffer after the addition of 1.5 g of HCl (36.5 g/mol). (Ka of HNO2 = 7.1x10^-4.)
describe the location of the carbon electrons. the answer is 3 unpaired electrons in sp2 orbitals and one unpaired electron in a 2p orbital
Five structural isomers have the formula C6H14. Where needed, draw the structure and give the IUPAC name of all five isomers
Automobile airbags contain solid sodium azide, NaN3, that reacts to produce nitrogen gas when heated, thus inflating the bag. Calculate the value of w (work) for the following system if 11.8 g of NaN3 reacts completely at 1.00 atm and 22 °C.
Diisopropyl ether reacts with concentrated aqueous HI to form two initial organic products (A and B). Further reaction with HI produces organic product C from product B
An atom is ionized so that it has only one electron. When the electron drops from the n = 4 shell to the n = 1 shell, an X-ray of wavelength 101.20 pm is emitted. What is the atomic number?
consider a reaction in which ferric oxide is converted to iron and gaseous oxygen. If this reaction is only 83% efficient and the ferric oxide is only 87.5% pure, what mass of ferric oxide is required to make 3 moles of iron
Determine what is the mass percent yield from 2.57 grams of Sb in excess Sulphur , if 1.56 g of Sb 2 S 3 is obtained?
Rate constants for the decomposition of acetaldehyde were measured at five different temperatures. A plot of ln k versus 1/t gave a slope of -2.09*10^4 K. What is the activation Energy for this reaction
What is the activation energy for a reaction if its rate constant is found to triple when the temperature is raised from 300 k to 310 k.
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