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geniusboy [140]
3 years ago
12

The proprietor of a rock shop insists that a nugget is pure gold. if the nugget occupies a volume of 5.40 ml, what would its mas

s have to be if it were truly pure gold? (density gold = 19.3 g/ml)
Chemistry
1 answer:
statuscvo [17]3 years ago
7 0

Density of gold = 19.3 g/mL

Density can be calculated from volume and mass of a substance as follows,

Density = \frac{Mass}{Volume}

Given the volume of gold nugget = 5.40 mL

Calculating the mass of gold nugget from density and volume:

Density = \frac{Mass}{Volume}

Mass = Density * Volume

5.40 mL * 19.3 \frac{g}{mL} =104.22 g

Therefore, the mass of the nugget is 104.22 g

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a compound has a molar mass of 129 g/mol if its empirical formula is C2H5N then what is the molecular formula
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A compound has a molar mass of 129 g/mol .

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Answer: 72 grams of O_2(g) are needed to completely burn 19.7 g C_3H_8(g)

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To calculate the number of moles, we use the equation:

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