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dlinn [17]
4 years ago
11

The measurement 0.41006 gram, rounded to three significant figures, is expressed as

Chemistry
1 answer:
atroni [7]4 years ago
3 0

Answer:

option B = 0.410 g

Explanation:

The given measurement have five significant figures 41006. this measurement can be rounded to three significant figures i.e, 0.410 g.

All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

Leading zeros are not consider as a significant figures. e.g. 0.03 in this number only one significant figure present which is 3.

Zero between the non zero digits are consider significant like 104 consist of three significant figures.

The zeros at the right side e.g 2400 are also significant. There are four significant figures are present.

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Given :

Number of molecules of C_4H_2F_7I.

To Find :

How many moles are in given number of molecules.

Solution :

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n = \dfrac{5.4\times 10^{24}}{6.022\times 10^{23}}\\\\n = 8.97 \ moles

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3 years ago
When a kettle is placed on the stove and water begins to boil, the hotter water at the bottom begins to rise and the
My name is Ann [436]

Answer:

The cooler water is denser

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Convection drives the boiling of water placed on a stove in a kettle.

During convection, heat is circulated by density differences in portions of a fluid.

Convection is a form of heat transfer in fluids especially gas and liquid.

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Give the electronic configuration of carbon atom.​
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