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Chemistry, 14.07.2020 19:01 veronica022
HELP ASAP if you're good at gen chem I /AP chem: A student wishes to prepare a solution with a final concentration of Na+ = 0.50 M and a final concentration of HCO3– = 0.10 M by taking some NaOH and some trona (Na2CO3•NaHCO3•2H2O) and diluting with water to a final volume of 1.00 L. How much NaOH and trona are required? the answer is 0.05 mol NaOH and 0.15 mol trona, but I just don't understand how in the world to get there!?
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Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
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HELP ASAP if you're good at gen chem I /AP chem: A student wishes to prepare a solution with a final...
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