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Problem- A sample of a compound contains 20 g of Element A and 30 g of Element B. If the atomic weight of A is 60 g/mol and 40 g/mole for B, what is the empiral formula of the compound? Can you do this step by step
Answer all three questions and provide required steps
question a glycine buffer is prepared by mixing 100 ml of 1.0m glycine ph 6.0 with 100 ml of 0.5m naoh and 300 ml of
The absorbance of the solution was 0.685 at 415nm and 0.513 at 455nm. What were the percentages of titanium and vanadium in the alloy?
How many atoms of He gas are present in a 450 mL container at 35°C and 740 mmHg
Construct a molecular orbital system for the basis set as the basis set, considering linear , bent , and cyclic gemetries
If 10.2 g of ammonium carbamate is introduced into a 0.500 L container, what is the total pressure inside the container at equilibrium
How much heat is required to convert 83 g of nitrogen gas to NO2 at constant temperature and pressure in the presence of excess oxygen
Four liters of water are equilibrated with a gas mixture containing carbon dioxide at a partial pressure of .3 atm. Henry's law constant for H2CO3* solubility is 2.0 g/L-atm.
The precipitation of aluminum hydroxide, Al(OH)_3 (K_sp)=1.3 x 10^{-33}), is sometimes used to purify water. At what pH will precipitation of Al(OH)_3 begin if 5.70 lb of aluminum sulfate, Al_2(SO_4)_3, is added to 2050 gallons of water (with a ne..
a hypothetical element has two stable isotopes one has a mass of 106.9051 amu with an abundance of 48.183% the other isotope has a mass of 108.9048 amu with an abundance of 51.825% what is the average atomic mass of this element
1. partition functions for particle in the boxconsider the he atom again with the three wave functions that you do not
Question- The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. But given the same kinetic energies, a lighter molecule will move faster than a heavier molecule.
discuss the various ways that the Fischer esterification reaction can be run to maximize conversion to ester.
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