Rita divides Avogadro’s number (approximately 6.02214 mc002-1.jpg 1023) by 2.055 to calculate the number of atoms in a sample. W
hich expression gives her result to the correct number of significant figures?
2 answers:
Answer:
2.930 x 10^23 is the correct answer
When we have Avogadro's number with four significant figures 6.022 x 10^23
and we have also this number 2.055 is also with four significant figures so,
the number of atoms = Avogadro's number / 2.055
= 6.022 x 10^23 / 2.055
= 2.930 x 10^23
and we can see that the result is number with four significant figures
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Explanation:
Answer:
cm3 = 2500.0 g / 10.5 g/cm3 = 238 cm3
Answer:
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Explanation:
The answer is B. Centrifugation
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