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MA_775_DIABLO [31]
3 years ago
12

How many moles are there in 2.35x10^23 molecules of water

Chemistry
1 answer:
ivanzaharov [21]3 years ago
6 0

Answer:

0.39017 moles

Explanation:

a mole is 6.023×10^23

(2.35×10^23)÷(6.023×10^23)=0.39017

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WILL GIVE BRAINLIEST!!!
Hoochie [10]
Hey there!:

ΔTf = Kf * m

Molar mass glucose = 180 g/mol

number of moles glucose:

n = mass of solute / molar mass

n = 21.5 / 180

n = 0.119 moles glucose

Amount of solvent in kg = 255/1000 = 0.255 Kg

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m = 0.119 / 0.255

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hope this helps!
7 0
4 years ago
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Which of the following compounds are held together by ionic bonds? Water, salt, sugar, carbon dioxide
Vika [28.1K]

Answer:

Salt.

Explanation:

Salt=NaCl

Ionic bonds are made when the two elements are from different sides of the periodic table. On the left, we have our metals. On the right, we have our nonmetals. Sodium is a metal and Chlorine is a gas. Water, sugar, and carbon dioxide are covalent bonds because all the elements are from the right side of the periodic table. Hydrogen is a nonmetal too.

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