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Lynna [10]
3 years ago
8

Can someone help me with problem 21.105? Many thanks!

Chemistry
1 answer:
Reika [66]3 years ago
3 0
The correct answer is 1 to the 3rd power
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8. How much heat is released when 85.0 g of steam condense to liquid water?
sergeinik [125]

Answer:

199920J

Explanation:

Given parameters:

Mass of steam  = 85g

Unknown:

Heat released when the liquid is condensed  = ?

Solution:

The heat released by the substance is given as;

         H  = mL

H is the heat released

m is the mass

L is the latent heat of steam  = 2352J/g

Heat released  = 85 x 2352  = 199920J

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3 years ago
Calculate the molarity of 29.0g of ethanol (C2H5OH) in 545 mL of solution.
BigorU [14]
Molar mass ethanol:

C2H5OH = 12 x 2+ 1 x 5 + 16  + 1 =  46.0 g/mol

volume = 545 mL in liters: 545 / 1000 => 0.545 L

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29.0 / 46.0 => 0.6304 moles

M = n / V

M = 0.6304 / 0.545

M = 1.156 mol/L

hope this helps!


5 0
3 years ago
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Does the following compound contain a polyatomic ion? Na2SO4<br> Yes<br> No
seropon [69]
The answer is yes I believe so.
8 0
3 years ago
What is the relationship between the location of volcanoes and earthquakes?
alexandr1967 [171]

Answer:

i think it is A

Explanation:

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Convert 100,000,00. milligrams to kilograms
aivan3 [116]

Answer:milliliters to kilograms

Weight of 1000 milliliters (ml) of pure water at temperature 4 °C = 1 kilogram (kg).

Explanation:

hope this helps have a nice night ❤️❤️❤️

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