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spin [16.1K]
3 years ago
7

Plz help me i have to give this by today pls...........

Chemistry
1 answer:
vfiekz [6]3 years ago
7 0
I need a a picture or the question
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A sample of marble has a volume of 6 cm3 and a density of 2.76 g/cm3. What is its mass?
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Determine the molecular formula of a compound that is 49.48% carbon, 5.19% hydrogen, 28.85% nitrogen, and 16.48% oxygen. the mol
Softa [21]
To determine molecular formula, we first need to find out its empirical formula,
Carbon. Hydrogen. Nitrogen. Oxygen
Mass. 49.98g. 5.19g. 28.85g. 16.48g
Mole. 4.165. 5.19. 2.06. 1.03
Divide 4. 5. 2. 1
by
smallest
So by comparing the mole ratio from the table above, i hope u understand the table
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so
(C4H5N2O) n= 194.19
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n= 2
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7 0
3 years ago
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