The mixture of alcohol and water is a homogeneous mixture where the components are thoroughly mixed and cannot be separated by naked eyes.
The easiest way to separate alcohol from water is by boiling the mixture. The boiling point of alcohol is lower than that of water. Therefore, alcohol will turn into steam before water. This steam can easily be condensed into a separate container.
To calculate the amount of the compound in the units of grams, we need to first obtain for the molar mass of the compound. We calculate as follows:
MgCl2 = <span>24.31 + (2 x 35.45) = 95.21 g/mol
</span><span>340 g MgCl2 ( 1 mol / 95.21 g ) = 3.57 mol MgCl2
Hope this answers the question. Have a nice day.</span>
The frequency of a 4,600 cm wave is 652 Hz
Frequency is the number of waves that pass a fixed point in unit time
Here given data is
Wave = 4,600 cm = 4.6 × 10⁸ nm
We have to calculated frequency = ?
Frequency =v = c/λ
Frequency = 3×10⁸m / 4.6 × 10⁸ nm
Frequency = 652 Hz
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<u>Answer:</u> The final temperature of the sample is 62.66°C
<u>Explanation:</u>
To calculate the amount of heat absorbed, we use the equation:
where,
Q = heat absorbed = 16.7 kJ = 16700 J (Conversion factor: 1 kJ = 1000 J)
m = Mass of the sample = 225 g
c = specific heat capacity of sample = 
= change in temperature = 
Putting values in above equation, we get:
Hence, the final temperature of the sample is 62.66°C
The answer is:
:Avoid lying down after eating
That should help
