7. How many grams are in 2.75 moles of dinitrogen trioxide, N2
8. How many moles are in...
7. How many grams are in 2.75 moles of dinitrogen trioxide, N2
8. How many moles are in 25.8 grams of calcium phosphate, Ca3(PO4)2?
9. Determine the mass, in grams, of 2.51 x 1024of dinitrogen trioxide, N2O3
10. How many atoms are in a sample of Ca3 mass of 82.47 grams?
11. How many liters are in 4.99 moles of oxygen?
Find the percentage composition for the following compound:
12.sulfuric acid, H2SO4
Calculate the empirical formula for the following compound:
13. 32.4%, sodium, 22.5% sulfur, and 45.15% oxygen
Find the molecular formula for the following compound:
14. The compound has an empirical formula of CH2
and its molecular mass is 70.0 g/mol.
Answers: 1
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How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene
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If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml
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If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
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Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control?
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