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When lithium metal is heated strongly in an atmosphere of gaseous nitrogen, the product formed contains 59.78% Li and 40.22% N. Determine the empirical formula of the compound.
calculate the flow rate of solution B neede to concetrate 300 ibm/hr of 55% H2SO4 (solution A) and the resulting flow rate of solution C
A 62g piece of ice at 0 degrees C is added to a sample of water at 6 degrees C. All of the ice melts and the temp of water decreases to 0 degrees C. How many grams of water were in the sample?
from the IR, 1H NMR spectrum and uv values decide what functional groups are present in the compound and deduce any other structural information you can, such as existance of conjugation in the carbonyl compound.
A reaction has an activation energy of 32 kj/mol. If the temperature of the reaction doubles from 45 to 90 degrees by what factor will the ratio of the rate constants, k2/k1,change
How many moles of HC2H3O2 are diluted to 59.37 mL? B)What is the Molarity of the diluted solution? What is the concentration after the dilution of the following?
How many grams is that. How long can one 100W light bulb run off of one gram of U235.
Use IR tables to locate absorption bands of the stretching frequencies of the alkyne C
which reaction has the greatest increase in entropya. 2h2o-gt 2h2 o2b. 2h2o-gt 2h2 o2c. h2og-gt h2old. h2ol-gt
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively.
What mass of this substance must evaporate in order to freeze 170 of water initially at 23? (The heat of fusion of water is 334 the specific heat of water is 4.18 .
tablets of ki were distributed to people living around chernobyl seven days after the nuclear reactor explosion
Next calculate molar internal energy and molar heat capacity assuming vibrational energy levels are not significantly populated at 298 K and do not contribute to molar heat capacity and molar internal energy. Calculate percent error for each molar..
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