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fredd [130]
3 years ago
7

Convert 7.801,000,000 to scientific notation. x10 what is the exponent for that​

Chemistry
1 answer:
nikklg [1K]3 years ago
7 0

Explanation:

7,801,000,000 = 7.801 × 10^9

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How much energy (heat) is required to convert 52.0 g of ice at –10.0°C to steam at 100°C? Specific heat of ice 2.09 J/g • °C Spe
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Answer: The energy (heat) required to convert 52.0 g of ice at –10.0°C to steam at 100°C is 157.8 kJ

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Using this formular, q = [mCpΔT] and = [nΔHfusion]

The energy that is needed in the different physical changes is thus:

The heat needed to raise the ice temperature from -10.0°C to 0°C is given as as:

q = [mCpΔT]

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And for fusion at 0°C is called Heat of fusion and would be given as:

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q = 52.0 / 18.02 x 6.02

q = 17.38 kJ

And that required for vaporization at 100°C is called Heat of vaporization and it's given as:

q = n ΔHvaporization

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