All categories

2 years ago

An alcohol is 70.57 % C and 5.935 % H by mass. The rest is oxygen. What is the empirical formula of the alcohol?

Chemistry

1 answer:

Butoxors [25]2 years ago

6 0

The empirical formula of the alcohol is C₄H₄O

To solve the question given above, we'll begin by calculating the percentage of oxygen in the compound. This can be obtained as follow:

Carbon (C) = 70.57 %

Hydrogen (H) = 5.935 %

<h3>Oxygen (O) =? </h3>

O = 100 – (C + H)

O = 100 – (70.57 + 5.935)

O = 100 – 76.505

Finally, we shall determine the empirical formula of the compound. This can be obtained as follow:

Carbon (C) = 70.57 %

Hydrogen (H) = 5.935 %

Oxygen (O) = 23.495%

<h3>Empirical formula =?</h3>

Divide by their molar mass

C = 70.57 / 12 = 5.881

H = 5.935 /1 = 5.935

O = 23.495 / 16 = 1.468

Divide by the smallest

C = 5.881 / 1.468 = 4

H = 5.935 / 1.468 = 4

O = 1.468 / 1.468 = 1

Therefore, the empirical formula of the alcohol is C₄H₄O

Learn more: brainly.com/question/19667938

You might be interested in

Calcium must lose two electrons to get a full outer shell. what is the name of the group to which calcium belongs

11111nata11111 [884]

The answer to this question would be: alkaline earth metal

Alkali earth metal is the second column group of the periodic table. In this group, the element has 2 extra electrons in their outer cells. That is why most of this metal has 2+ charge.
Their neighbor is the alkali metal which was the first column of the periodic table. The name is similar so don't confused and mix them each other.

4 0

3 years ago

A balloon is filled to a volume of 1.6 L at 278 K. The balloon is left outside overnight and the temperature has dropped to 253

german

Explanation:

Charles' law gives the relationship between the volume and the temperature of the gas. Mathematically,

Volume ∝ Temperature

i.e. $\dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}$

We have, V₁ = 1.6 L, T₁ = 278 K, T₂ = 253, V₂=?

$V_2=\dfrac{V_1T_2}{T_1}\\\\V_2=\dfrac{1.6\times 253}{278}\\\\V_2=1.45\ L$

So, the new volume is 1.45 L.

6 0

2 years ago

Cells get energy from food to sustain the life of the organism.

Sati [7]

The answer is B hope this helped

4 0

3 years ago

Read 2 more answers

Why do we not know yet if we live in multiverse

kherson [118]

The people of he world believe and they don't believe.

I,myself, think we do land don't live in multiverse.

Why: Because in science I hear that there are many universes out there that need to b explored.

Not: Because if we did, don't you think that Astronauts and the U.S. would try and find different universes.

I hope I helped you!:)

4 0

3 years ago

For a steel stack that exhausts 1,200 m3/min of gases at 1 atm and 400 k, calculate the inner diameter if you are designing for

bonufazy [111]

The inner diameter for a steel stack that exhausts 1,200 m3/min of gases at 1 atm and 400 k is 1.45 m

<h3>What is Stack Height ?</h3>

Stack height means the distance from the ground-level elevation at the base of the stack to the crown of the stack.

If a stack arises from a building or other structure, the ground-level elevation of that building or structure will be used as the base elevation of the stack.

Given is a steel stack that exhausts 1,200 cu.m/min of gases

P= 1 atm and

T= 400 K

maximum expected wind speed at stack height of 12 m/s

The formula for the diameter of chimney

$\rm d=\sqrt{\dfrac{4Q}{\pi v} }$

Q =1200 cu.m/min

= 1200 * 0.0166 = 19.92 cu.m/sec

Velocity = 12m/s

$\rm d=\sqrt{\dfrac{4\times 19.92}{3.14*12} }\\$

d= 1.45 m

Therefore The inner diameter for a steel stack that exhausts 1,200 m3/min of gases at 1 atm and 400 k is 1.45 m.

To know more about Stack Height

brainly.com/question/24625453

#SPJ4

8 0

2 years ago