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Elden [556K]
2 years ago
9

If a girl is 99 lb's and she eats a lb of nacho does that mean she is 1% nacho

Chemistry
2 answers:
castortr0y [4]2 years ago
6 0
Yes, probably! LOL This one got me laughing.
Julli [10]2 years ago
4 0
No. that does not mean that
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What is “monomer” mean?
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Substances which will glow in the dark after being exposed to sunlight are called:
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What quantity of energy, in joules, is required to raise the temperature of 425 g of tin from room temperature, 25.0 °C, to its
Rama09 [41]

Answer:

Total energy required to raise the temperature of 425 g of tin from 298.15 K to 505.05 K and to melt the tin at 505.05 K is 45.249 kiloJoules.

Explanation:

Mass of the tin ,m= 425 g

Heat capacity of the tin ,c= 0.227 J/g K

Initial temperature of the tin ,T_1= 25.0 °C = 298.15 K

Final temperature of the tin, T_2= 231.9 °C = 505.05 K

Let the heat required to change the temperature of tin from 298.15 K to 505.05 K be Q.

Q=mc\times (T_2-T_1)

=425 g\times 0.227 J/g K\times (505.05K - 298.15 K)=19,960.68 J=19.961 kJ

Heat required to melt tin at 505.05 K be Q'

The heat of fusion of tin metal =\Delta H_{fus}=59.2 J/g

Q'= m\times \Delta H_{fus}=425 g\times 59.2 J/g=25,287.5 J=25.288 kJ

Total energy required to raise the temperature of 425 g of tin from 298.15 K to 505.05 K and to melt the tin at 505.05 K is:

= Q+Q' =  19.961 kJ + 25.288 kJ = 45.249 kJ

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How can i convert 850 cals to joules
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Answer:

 

B) One way of solving this is to use dimensional analysis and cancel out grams to find volume.

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Explanation:

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3 years ago
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