9.03x10247. How many atoms of oxygen are in 1.25 mol of NaNO?1 NaNO3 = 6.022x10231.25 X 6.022 X 1023 =6.022 X 1013molecules CO₂ = 15 mol CO₂2ample containing 9.03x10 molecules of CO29.03x1024moted 0₂ (6022x102x063x10247.53 x 1023atoms of Oxygen.8. How many moles (mol) of O2 are in a 13.5 kg sample?13.5kg x 1000kg32g Imol421.875 moles-=(9MOT CO 1H9. A sample contains 82.6 mmol of Mg(C₂H3O2)2. How many moles (mol) of oxygen are in thesample?7.53 x 1023atoms of oxygen)10. How many atoms of carbon are in a 312.5 mg sample of C3H8?312g x 100 = 0.312gmass of G3 H 83125g HaC3 H8 x Imol (3 HB = 0.00708 Smoles.44.11g (3H8125g C3H8 x 3 moi carbon = 0,021255 moles carbonImol C3H8ry: Combining Balanced Chemical Equations and Molar Conversionso make you hungry again!Imol of carbon6.022 X1023 carb6.022x1023хоmoto= 1.28

7) Given, moles of NaNO3 = 1.25 mol Number of Oxygen atoms = ?

Answered: molecules CO₂ 15 mol CO₂ 7. How many…

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molecules CO₂ 15 mol CO₂ 7. How many atoms of oxygen are in 1.25 mol of NaNO? 03 = 6.022x1023 1.25 X JelostmotedD₂

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter3: Molecules, Moles, And Chemical Equations

Section: Chapter Questions

Problem 3.111PAE: 3.111 The chlorophyll molecule responsible for photosynthesis in plants contains 2.72% Mg by mass....

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

9.03x1024
7. How many atoms of oxygen are in 1.25 mol of NaNO?
1 NaNO3 = 6.022x1023
1.25 X 6.022 X 1023 =
6.022 X 1013
molecules CO₂ = 15 mol CO₂
2
ample containing 9.03x10 molecules of CO2
9.03x1024moted 0₂ (6022x102x063x1024
7.53 x 1023
atoms of Oxygen.
8. How many moles (mol) of O2 are in a 13.5 kg sample?
13.5kg x 1000kg
32g Imol
421.875 moles
-
=
(9
MOT CO 1
H
9. A sample contains 82.6 mmol of Mg(C₂H3O2)2. How many moles (mol) of oxygen are in the
sample?
7.53 x 1023
atoms of oxygen)
10. How many atoms of carbon are in a 312.5 mg sample of C3H8?
312g x 100 = 0.312g
mass of G3 H 8
3125g Ha
C3 H8 x Imol (3 HB = 0.00708 Smoles.
44.11g (3H8
125g C3H8 x 3 moi carbon = 0,021255 moles carbon
Imol C3H8
ry: Combining Balanced Chemical Equations and Molar Conversions
o make you hungry again!
Imol of carbon
6.022 X1023 carb
6.022x1023
хо
moto
= 1.28

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