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anyanavicka [17]
3 years ago
12

What is the difference between mass number and atomic mass (sometimes also called atomic weight)? Boron has an atomic mass of 10

.811. What does this mean?
Chemistry
1 answer:
RUDIKE [14]3 years ago
3 0

Answer:

<h3> I think....atomic mass: it is the average of total masses of isotopes in the element..... mass no: it is the total no.of protons and neutrons in atomic nuclei of abundant isotope in the element</h3>

Explanation:

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Explanation:

The first step to know the material of the chunk of metal is to calculate its density. The general formula for density is P (density) = \frac{m (mass)}{ v (volume)}. Moreover, in this case, it is known the mass is 37.28 g, but the volume is not directly provided. However, we know the water in the graduated cylinder had a volume of 20.0 mL and this increased to 34.0 mL when the chunk of metal is added, this means the volume of the metal is 14 mL (34.0 mL - 20.0 mL = 14 mL). Now let's calculate the density:

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