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Korolek [52]
3 years ago
5

A miner finds a small mineral fragment with a volume of 11.5 cm3 and a mass of 57.4 g. what is the density of that mineral fragm

ent?
Chemistry
2 answers:
DiKsa [7]3 years ago
7 0

Answer:

5 g/cm^3

Explanation:

the density (amount of mass in a given volume) formula is

d=\frac{m}{v}

Data

m= 57.4 g\\v= 11.5 cm^3

Replace in the formula the data

d=\frac{m}{v}\\d=\frac{57.4g}{11.5 cm^3}\\d= 5 g/cm^3

slega [8]3 years ago
3 0
Density = mass/volume
= 57.4/11.5
= 4.99 g/cm^3
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Answer:

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Explanation:

Hello there!

In this case, according to the given chemical reaction, it is possible for us to calculate the produced grams of nitrogen monoxide by starting with 25.0 g of nitrogen via their 1:2 mole ratio and the molar masses of 30.1 g/mol and 28.02 g/mol, respectively and by some stoichiometry:

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How many grams of ag can be formed from 5.50 grams of ag2o in the equation: 2ag2o (s) → 4ag (s) o2 (g)?
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From the given balanced equation we have find out the amount (in gm) of Ag formed from 5.50 gm of Ag₂O.

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We know, molecular mass of Ag₂O= 231.7 g/mol, and atomic mass of Ag= 107.8 g/mol. Given, mass of Ag₂O=5.50 gm. Number moles of Ag₂O=\frac{5.50}{231.7}= 0.0237 moles.

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Therefore, 5.50 g Ag₂O produces 5.11 g of Ag as per the given balanced chemical reaction.


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