Chemistry College

5x10-6 mol Na2C2O4 bileşiğinde kaç tane O atomu vardır?
How many oxygen atoms are present in 5x10-6 mol Na2C2O4 ?

Answers

Answer 1

There are 1.204 x 10¹⁹ atoms O

Further explanation  

The empirical formula is the smallest comparison of atoms of compound forming elements.  

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

1 mol of molecule Na₂C₂O₄ :

There are 4 mol of O in 1 mol of molecule Na₂C₂O₄

So for 5 x 10⁻⁶ mol Na₂C₂O₄ :

[tex]\tt mol~O=4\times 5.10^{-6}=2.10^{-5}[/tex]

1 mole = 6.02.10²³ particles , so number of atoms O :

[tex]\tt 2\times 10^{-5}\times 6.02\times 10^{23}=1.204\times 10^{19}[/tex]

Related Questions

What does the chemical formula C3H6O2 tell about a molecule of the compound it represents?

It is made up of 3 atoms of 11 different elements.
It is made up of 11 atoms joined in a straight line.
It is made up of 11 total atoms of 3 different elements.
It is made up of 1 atom composed of 3 different elements.

Answers

Answer:

it number 3 it's made up of total 11 atoms of 3 different elements .

Answer:

c

Explanation:

Which best defines a service? a task that is performed in exchange for payment an object that is acquired a plan that is executed an image that is drawn

Answers

Answer:

a task that is performed for payment

Explanation:

all of the other answers do not pertain to the question

A service is best defined as a task that is performed in exchange for payment.

What is a task?

A task is an activity that needs to be accomplished within a defined period of time or by a deadline to work towards work-related goals, usually done in exchange for payment.

Thus, we can conclude that, a service is best defined as a task that is performed in exchange for payment.

Learn more about task here: https://brainly.com/question/12831236

#SPJ2

Rosie balanced the equation below with the lowest coefficients, however she made a mistake.
2 AgCl + 2 Mg(NO3)2 --> 1 AgNO3 + 2 MgCl2
What was her error and what should the correct answer be?

Answers

Answer:

2 AgCl + Mg(NO3)2 --> 2AgNO3 + MgCl2

Explanation:

This is balanced equation

Cubic zirconia is a substance produced in a laboratory. It looks nearly identical to a diamond. Why is it not a mineral?
It has no definite chemical formula.
It is not crystalline in structure.
It is not a solid.
It is not naturally occurring.

Answers

Answer:

it is not naturally occuring

the last one, not natuslly occuring

What is generally true of atoms with relatively large atomic radii?

Answers

Answer:

Large atoms hold their electrons very tightly. ... Large atoms tend to be found on the right side of their period on the periodic table.

Explanation:

Answer:

Explanation:

Large atoms tend to have a low ionization energy and a low electron affinity.

all of the following are properties of ionic compounds except:

A. Ionic compounds have low melting points,

B. Ionic compounds have high boiling points

C. Ionic compounds conduct electricity when dissolved in water

D. Ionic compounds are solid at room temperature

Answers

Answer:

A

Explanation:

They have generally high melting point compared to covalent compounds because they are formed by electrostatic force of attraction between two opposite charge is not easy to melt them in low melting point.

Ionic compounds have high melting and boiling points. Therefore, option A is not a property of ionic compound. Hence, option A is the correct answer.

Ionic compounds are neutral compounds. Ionic compounds are formed from cations and anions. Positively charged ion (cation) and negatively charged ion (anion) are held together with strong ionic bond.  Some main properties of ionic compounds are,

High melting point and boiling pointsHave definite size and shapeConduct electricity in molten statesoluble in water and not soluble in organic solvents

Thus, we can conclude ionic compounds have high melting and boiling points. Hence, option A is the correct answer.  

Learn more about ionic compounds here:

https://brainly.in/question/6121831

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