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liberstina [14]
2 years ago
13

An archeologist finds a 1.62 kg goblet that she believes to be made of pure gold. She determines that the volume of the goblet i

s 205 mL. Calculate the density of the goblet. I was wondering if it is 1.62/205? It is saying it it incorrect though!
Chemistry
1 answer:
katovenus [111]2 years ago
5 0
The  answer is

<span>The density (D) is quotient of mass (m) and volume (V):
</span>D= \frac{m}{V}
The unit is g/cm³

It is given:
m = 1.62 kg = 1620 g
V = 205 mL = 205 cm³
D = ?

Thus:
D= \frac{m}{V} = \frac{1620g}{205cm ^{3} } = 7.90 g/cm ^{3}

The density of the goblet is 7.90 g/cm³.
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a.
Acids react with bases and give salt and water and the products.

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To balance the reaction equation, both sides hould have same number of elements.

Left hand side,                                             Right hand side,
             
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b. 
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Hence, moles of HCl = moles of NaOH
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5.681 x 10⁻³ mol of HCl was in <span>26.9 mL.

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