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expeople1 [14]
3 years ago
15

What is the molar mass of CH2O2?

Chemistry
2 answers:
Citrus2011 [14]3 years ago
6 0

Answer:

46

Explanation:

Flauer [41]3 years ago
5 0
<em>M CH₂O₂:</em>
mC + mH×2 + mO₂×2
= 12g + 1g×2 + 16g<span>×2 = <u>46g/mol</u>

:)</span>
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Above answer is correct
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According to the periodic table, which statement correctly describes the change from a neutral atom of an element to its ion?
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A 75 g piece of gold (Au) at 1000 K is dropped into 200 g of H2O at 300K in an insulatedcontainer at 1 bar. Calculate the temper
Arturiano [62]

Answer:

the final temperature is T final = 308 K

Explanation:

since all heat released by gold is absorbed by water

Q gold + Q water = Q surroundings =0 (insulated)

Assuming first that no evaporation of water occurs , and denoting g as gold and w as water , then

Q gold = m g*cp g* ( T final - T initial g)

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m= mass

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thus

Q gold + Q water = 0

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T final = (m g*cp g* T initial g+ m w*cp w* T initial w)/(m g*cp g+ m w*cp w)

replacing values and assuming cp w = 1 cal/gK = 4.816 J/gK and cp g = 0.129 J/gK (from tables), then

T final =  (75 g*0.129 J/gK* 1000 K + 200 g * 4.816 J/gK * 300 K )/(75 g*0.129 J/gK*+ 200 g * 4.816 J/gK ) = 308 K

T final = 308 K

since T boiling water = 373 K and T final = 308 K , we confirm that water does not evaporate

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3 years ago
What is the difference between concentrated acid and a weak one?
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While,

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What creates a thermocline?
vredina [299]

Answer:

here are the answers to all the questions on the quiz Phytoplankton

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phytoplankton

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are the answers

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Hope this helps!

did the quiz and got 100%

May I get braineist pls

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