2 years ago

Please answer this thanks and have a great day! Xoxo!

Chemistry

2 answers:

IgorC [24]2 years ago

7 0

Answer:

a is ur answer have fun

Explanation:

good luck bro

Ipatiy [6.2K]2 years ago

4 0

I’m gonna say C byee have a good day

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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

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3 years ago

6. What's the structure of PF? Is it polar or non-polar?

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3 years ago

H₃C-Ç=CCH₃ сна сHз (what is the name of this chemical formula)

algol [13]

Answer:2,3 -dimethyl-2-butenr

Explanation:

3 0

3 years ago

Which substance can be decomposed by chemical means?

sweet-ann [11.9K]

Are u sure this is the right option? Well, antimony can be decomposed. Including octane.

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3 years ago

A sample of a pure compound that weighs 60.3 g contains 20.7 g Sb (antimony) and 39.6 g F (fluorine). What is the percent compos

Volgvan

Answer:

The percent composition of fluorine is 65.67%

Explanation:

Percent Composition is a measure of the amount of mass an element occupies in a compound. It is measured in percentage of mass.

That is, the percentage composition is the percentage by mass of each of the elements present in a compound.

The calculation of the percentage composition of an element is made by:

$percent composition element A=\frac{total mass of element A}{mass of compound} *100$

In this case, the percent composition of fluorine is:

$percent composition of fluorine=\frac{39.6 g}{60.3 g} *100$

percent composition of fluorine= 65.67%

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3 years ago