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alina1380 [7]
3 years ago
10

Which compound forms from 2 parts of hydrogen and 1 part of oxygen?

Chemistry
1 answer:
lina2011 [118]3 years ago
6 0
Water, H2O, HOH these are all the same compound just worded differently
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The density of the hydrocarbon in part (a) is 2.0 g l-1 at 50°c and 0.948atm. (i) calculate the molar mass of the hydrocarbon. (
Vedmedyk [2.9K]

1. Answer;

=56 g/mol

Explanation and solution;

PV = nRT

nRT= mass/molar mass (RT)

molar mass = (mass/V ) × (RT/P)

                   = Density × (RT/P)

Molar mass = 2.0 g/L × (0.0821 × 323 K)/0.948 atm

Molar mass = 56 g/mol


2. Answer;

Molecular mass is C4H8

Explanation;

Empirical mass × n = molar mass

Empirical mass for CH2 = 14 g/mol

Therefore;

56 g/mol = 14 g/mol × n

   n = 4

The molecular formula= 4(CH2)

    = C4H8


7 0
2 years ago
An astronaut is free-floating in space near a space station and it is not tethered to anything. He has some tools and a fire ext
worty [1.4K]

Hey there

the answers are

A.

and

D. He could spray the fire extinguisher in the opposite direction of the space station


hope this helps

7 0
3 years ago
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What are three (3) rights workers have in the workplace?
Jobisdone [24]

Answer:

The right to refuse work that could affect their health and safety and that of others.

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Explain why pentane has a higher boiling point than butane
creativ13 [48]

Answer: Larger molecules have stronger London forces.

Explanation:

Pentane therefore has a stronger force than butane.

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How do you calculate the relative formula mass of a compound
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Write the formula of the compound.
Write the numbers of each atom in the formula. Insert the relative atomic mass for each type of atom. Calculate the total mass for each element.
Add up the total mass for the compound.
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