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Alexxandr [17]
3 years ago
12

Why is it important to keep good records during a scientific investigation?

Chemistry
1 answer:
love history [14]3 years ago
5 0

Answer:

everything needs to be documented in case you need to come back to it and to have evidence for yourself and others. as they say if it is not documented it wasn't done

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The density of a pure substance is its mass per unit volume. The density of cresol has been measured to be 1024 g/L . Calculate
Ierofanga [76]

Answer: The mass of 405 ml of cresol is 415 grams

Explanation:

Density is defined as the mass contained per unit volume.

Density=\frac{mass}{volume}

Given : Density of cresol = 1024 g/L

Volume of cresol = 405 ml = 0.405 L   ( 1L=1000ml)

Putting in the values we get:

1024g/L=\frac{mass}{0.405L}

mass=1024g/L\times 0.405L=415g

Thus mass of 405 ml of cresol is 415 grams

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