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oksano4ka [1.4K]
3 years ago
12

What is the approximate mass of 72 cm3 of silver, if the density is 10.5 g/cm3?

Chemistry
2 answers:
aleksandrvk [35]3 years ago
6 0

Answer:

To approximate the mass of silver, we use the data on density and the volume of the substance. Density is the mass of a substance over the volume it occupies. This given is 10.5 g/cm3 density and a volume of 25 cm3. We multiply the two to get 262.5 grams of silver.

77julia77 [94]3 years ago
5 0

Answer:

<h3>The answer is 756 g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of silver = 72 cm³

density = 10.5 g/cm³

We have

mass = 10.5 × 72

We have the final answer as

<h3>756 g</h3>

Hope this helps you

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Answer:

Coefficient of H_{2}O in the balanced equation with smallest possible integer is 6.

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Balance Ca: 3Ca(OH)_{2}(aq.)+H_{3}PO_{4}(aq.)\rightarrow Ca_{3}(PO_{4})_{2}(s)+H_{2}O(l)

Balance PO_{4}  : 3Ca(OH)_{2}(aq.)+2H_{3}PO_{4}(aq.)\rightarrow Ca_{3}(PO_{4})_{2}(s)+H_{2}O(l)

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Balanced equation: 3Ca(OH)_{2}(aq.)+2H_{3}PO_{4}(aq.)\rightarrow Ca_{3}(PO_{4})_{2}(s)+6H_{2}O(l)

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