Which branch of chemistry is concerned with the detection or identification of substances present in a sample and their amount?

Chemistry

1 answer:

Verizon [17]3 years ago

6 0

Answer:

The <u>detection</u> of iron in a mixture of metals for example , or in a compound such as magnetite, is a branch of analytical chemistry called qualitative analysis. <u>Measurement</u> of the actual amount of a certain substance in a compound or mixture is termed quantitative analysis.

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A piece of wood near a fire is at 23°C. It gains 1,160 joules of heat from the fire and reaches a temperature of 42°C. The speci

Molodets [167]

Answer:

35.578g or 36g if you round

Explanation:

Q=mc ∆∅ where ∅ is temperature difference

1160= m x 1.716 x (42-23)

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m=35.578g

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4 years ago

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tankabanditka [31]

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3 years ago

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lubasha [3.4K]

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3 years ago

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lakkis [162]

Answer:

Final temperature: 659.8ºC

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Explanation:

First, considering both initial and final states, write the energy balance:

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$dw=Pdv$