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ozzi
2 years ago
6

a block of platinum 6.00 cm long, 3.50 cm wide and 4.00 cm thick has a mass of 1802 g. what is the density of platinum?

Chemistry
1 answer:
KATRIN_1 [288]2 years ago
6 0

find the volume first

Volume = 6cm x 3.5cm x 4cm

= 84ml

Density of platinum:

1802 gram/84ml = 21,4 g/ml

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Answer:

1. V2.

2. 299K.

3. 451K

4. 0.25 x 451 = V2 x 299

Explanation:

1. The data obtained from the question include:

Initial volume (V1) = 0.25mL

Initial temperature (T1) = 26°C

Final temperature (T2) = 178°C

Final volume (V2) =.?

2. Conversion from celsius to Kelvin temperature.

T(K) = T (°C) + 273

Initial temperature (T1) = 26°C

Initial temperature (T1) = 26°C + 273 = 299K

3. Conversion from celsius to Kelvin temperature.

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Final temperature (T2) = 178°C

Final temperature (T1) = 178°C + 273 = 451K

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