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Virty [35]
2 years ago
11

Which of the following substances best conducts electricity in an aqueous solution? CH3OH

Chemistry
1 answer:
lapo4ka [179]2 years ago
5 0

Answer:

KCI

Explanation:

I took the test

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There are 8.6 x 1025 atoms in a block of Tin (Sn). How many moles is the block of Tin?
zysi [14]

Answer:

142.8096978mol

Explanation:

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2 years ago
Which of the following answers is true for the following statement?
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it is either "aweak acid or a lousy (or very weak) acid"

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4K + O2 + 2K20<br> Which statement is true?
Jet001 [13]

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yes 4K + O2 ------>2K20 is true.

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What is an Atom?<br><br> What are the 5 most common elements that make up the human body?.
dalvyx [7]
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6 0
2 years ago
Linolenic acid (C18H30O2 - M.W. = 278.42 g/mol) reacts with hydrogen gas according to the equation: C18H30O2 + 3H2 (g) → C18H36O
Ludmilka [50]

Answer:

2.53 L is the volume of H₂ needed

Explanation:

The reaction is: C₁₈H₃₀O₂ + 3H₂ → C₁₈H₃₆O₂

By the way we can say, that 1 mol of linolenic acid reacts with 3 moles of oxygen in order to produce, 1 mol of stearic acid.

By stoichiometry, ratio is 1:3

Let's convert the mass of the linolenic acid to moles:

10.5 g . 1 mol / 278.42 g  = 0.0377 moles

We apply a rule of three:

1 mol of linolenic acid needs 3 moles of H₂ to react

Then, 0.0377 moles will react with (0.0377 . 3 )/1 = 0.113 moles of hydrogen

We apply the Ideal Gases Law to find out the volume (condition of measure are STP) → P . V = n . R . T → V = ( n . R .T ) / P

V = (0.113 mol . 0.082 L.atm/mol.K . 273.15K) 1 atm = 2.53 L

4 0
3 years ago
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