Ask question

Ask question

All categories

3 years ago

7

A compound X has the following percentage composition 66.7% carbon, 11.1% hydrogen and 22.2% oxygen .Calculate the empirical for

mula of X.The relative molecular mass of X is 72 calculate the molecular formula

1 answer:

Digiron [165]3 years ago

4 0

Explanation:

c. h. o

66.7%. 11.1%. 22.2%

____. ____. ____

12. 1. 16

1.558. 11.1. 1.39. (divide by the smallest)

1. 8. 1

empirical formula=ch8o

You might be interested in

In a solution, when the suspension of one kind of molecules is blended or dissolved with another, the ________ properties are no

Sidana [21]

Answer:

chemical

Explanation:

The chemical properties determine the identity of a substance and are not changed when there is no reaction. In the solution, what takes place is a physical change, which is a change of state (for example, going from solid to aqueous form).

8 0

3 years ago

Organisms can either be made of one cell or made of more than one cell

Alika [10]

Answer:

The statement is true.

Explanation:

Organisms can be unicellular (made up of one cell) or multicellular (consisting of more than one cell).

I hope this helps in any way :)

4 0

3 years ago

In the spring of 1947 a ship carried ammonium nitrate fertilizer blew up while at a harbor in Texas City, Texas

nirvana33 [79]

It was a spring morning of April 16, 1947, was a morning that many citizens of Texas City thought was the end of the world. The French Liberty ship, SS Grandcamp, bearing a cargo of ammonium nitrate fertilizer (over 2300 tons) destined for war-torn Europe, caught fire in the Texas City harbor. The bright ... A little after 9.00 a.m., the Texas City Disaster (as it is popularly known) occurred as the ship Grandcamp exploded.

6 0

3 years ago

As water starts to freeze, the molecules of water

amid [387]

Move more freely :) hope this helps!

8 0

3 years ago

A galvanic cell is set up with two cells containing a cadmium electrode in 0. 250 m cd(no3)2 solution and an iron electrode in 0

Lesechka [4]

The cell potential is 0.01934 V at 25°C.

<h3>What is a galvanic cell?</h3>

A galvanic cell, also known as a voltaic cell, is an electrochemical cell that converts the chemical energy generated by spontaneous redox reactions into electrical energy.

The main components of a galvanic cell are

Anode – Oxidation occurs at the anode

Cathode – Reduction occurs at the cathode

Salt bridge – consists of electrolytes that are needed to complete the circuit in a galvanic cell.

Half-cells – It is important as reduction and oxidation reactions are separated into compartments.

External circuit – it helps in Conducting the flow of electrons between electrodes

At cathode,

$Cd^{2+}(aq) + 2e^-\rightarrow Cd(s)$

At anode,

$Fe(s)+2e^-\rightarrow Fe^{2+}(aq)$

Overall cell reaction

$Fe(s)+Cd^{2+}(aq)\rightarrow Fe^{2+}(aq) + Cd(s)$

$E^o_{cell} = E^o_{cathode} - E^o_{anode}$

= -0.40 -(0.44) = 0.04 V

Nernst equation is given by

$E_{cell} = E^o_{cell} - \frac{2.303RT}{nF} logQ$

At 25°C

$E_{cell} = E^o_{cell} - \frac{0.0592V}{n} logQ$

Here, n = 2 and log Q = log $\frac{0.250}{0.050}$ = 0.699

$E_{cell}$ = 0.01934 V

The cell potential is 0.01934 V at 25°C

Learn more about galvanic cell:

brainly.com/question/13918634

#SPJ4

3 0

1 year ago

Read 2 more answers