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andreev551 [17]
3 years ago
11

1. How many times will a mole of paperclips (think giant paperclip chain) stretch around the equator of the

Chemistry
1 answer:
max2010maxim [7]3 years ago
3 0
Yea, it’s either earth (1 paperclip=0.030 m earths circumference = 4x10m)
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** worth 20 points + brainliest **
Bad White [126]

Answer : The correct option is, (D) 83^oC

Solution :

Formula used :

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

where,

Q = heat released = -1300 J

m = mass of water = 40 g

c = specific heat of water = 4.18J/g^oC      

\Delta T=\text{Change in temperature}  

T_{final} = final temperature = ?

T_{initial} = initial temperature = 91.0^oC

Now put all the given values in the above formula, we get the final temperature of water.

-1300J=40g\times 4.18J/g^oC\times (T_{final}-91.0^oC)

T_{final}=83.2^oC\approx 83^oC

Therefore, the final temperature of the water is, 83^oC

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1. Si

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The chemical formula for methanol is: Calculate the molar mass of methanol. Round your answer to decimal places.
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