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MariettaO [177]
3 years ago
8

How is 6.3 written in scientific notation?

Chemistry
2 answers:
Leokris [45]3 years ago
8 0
6.3 × 10^0
In scientific notation, the numerical value without the exponent of 10 must be within the range from 1 to just below 10 (for example, 9.99...). In this case, 6.3 is already within this range, so we just have to multiply it by 1. To get a multiplier of 1 using base 10, we would have to raise 10 to the zeroth power.

nadezda [96]3 years ago
8 0

<u>Answer:</u> The scientific notation for the given numerical value is 6.3\times 10^{0}m/s

<u>Explanation:</u>

Scientific notation is defined as the notation in which a number is expressed in the decimal form. This means that the number is always written in the power of 10 form. The numerical digit lies between 0.1.... to 9.9.....

If the decimal is shifting to right side, the power of 10 is negative and if the decimal is shifting to left side, the power of 10 is positive.

We are given:

A numerical value = 6.3

Converting this into scientific notation, we get:

\Rightarrow 6.3=6.3\times 10^{0}m/s

We know that:

10^0=1

Hence, the scientific notation for the given numerical value is 6.3\times 10^{0}m/s

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Answer:

The mole fraction of ethanol and water in the solution are 0.19 and 0.81 respectively.

Explanation:

The Molar Fraction is a way of measuring the concentration that expresses the proportion in which a substance is found with respect to the total moles of the solution, which are calculated by adding the moles of solute (s) and solvent.

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x_{water} =0.81

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x_{water} +x_{ethanol} = 0.81 + 0.19

x_{water} +x_{ethanol} =1

<u><em>The mole fraction of ethanol and water in the solution are 0.19 and 0.81 respectively.</em></u>

 

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