1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
professor190 [17]
2 years ago
13

C3H8 + 5 O2 → 3 CO2 + 4 H2O What is the number of atoms on each side of the equation?

Chemistry
2 answers:
Roman55 [17]2 years ago
6 0

Answer: 1.2642*10²⁵ on both sides

Explanation:

First check how many moles are there on each side.
Since this is a balanaced equataion the number of moles on each side is the same thus the number of atoms is also same on both sides

There are 3 moles of carbon and 8 moles of hydrogen in C3H8
and 2 moles of oxygen in O2 but there 5 infront so 2*5 is 10
Number of moles on the right is 10+8+3 = 21

Now use Avogrado's constant

21 Moles* (6.02*10²³)/Mol
= 21*6.02*10²³

= 1.2642*10²⁵

LenKa [72]2 years ago
5 0

According to law of conservation of mass

  • Mass of reactants=Mass of products

So

No of moles of reactants

  • 3+8+10
  • 21

No of moles of products

  • 21

No of atoms

  • 21×6.023×10²³
  • 1.26×10²⁵atoms
You might be interested in
Explain, in terms of energy, why the temperature of the reaction mixture increases
Dima020 [189]

Answer:

Magnesium reacts with dilute hydrochloric acid in a conical flask which is connected to an inverted measuring cylinder in a trough of water. The volume of hydrogen gas produced is measured over a few minutes, and the results are used to plot a graph........

8 0
2 years ago
Someone please help me and answer my question asap. i need to turn my assignment in soon... please.
Ksenya-84 [330]

Answer:

Explanation:

a. the salt produced would be Mg3N2(magnesium nitride)

b. magnesium loses 2 electron to form Mg2+ ion and nitrogen gains 3 electron to form n3-

when several of these ions come together 3 Mg2+ ion combine with 2 n3- ion to form Mg3N2 thus Mg getting six electron from nitrogen to form a ionic bond.

c. the reaction is not balanced Mg + N2 = Mg3n2

to make it balanced the reaction should be 3 Mg + N2 = Mg3N2.

the reaction was not balanced before because the number of Mg on both side of the reaction was not equal.

d. magnesium nitrate has formula Mg(NO3)2 is formed when Mg combines with nitrogen and oxygen Mg + N2 + o2

8 0
3 years ago
How do scientists determine locations for drilling for natural gas? Where are many natural gas drill sites located? (Site 2)
Alchen [17]

Explanation:

By<em> </em><em>drilling</em><em> </em><em>several</em><em> </em><em>cores</em><em> </em><em>miles</em><em> </em><em>ap</em><em>art</em><em> </em><em>,</em><em> </em><em>geologist</em><em> </em><em>c</em><em>a</em><em>n</em><em> </em><em>correlate</em><em> </em><em>the</em><em> </em><em>rock</em><em> </em><em>units</em><em> </em><em>and</em><em> </em><em>create</em><em> </em><em>an</em><em> </em><em>image</em><em> </em><em> </em><em>what</em><em> </em><em>exists</em><em> </em><em>and</em><em> </em><em>where</em><em> </em><em>below</em><em> </em><em>the</em><em> </em><em>surfac</em><em>e</em><em>.</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>Combining</em><em> </em><em>this</em><em> </em><em>information</em><em> </em><em>with</em><em> </em><em>rocks</em><em> </em><em>exposed</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>surface</em><em> </em><em>,</em><em> </em><em>which</em><em> </em><em>can</em><em> </em><em>gives</em><em> </em><em>clues</em><em> </em><em>about</em><em> </em><em>rock</em><em> </em><em>orientation</em><em> </em><em>below</em><em>,</em><em> </em><em>can</em><em> </em><em>be</em><em> </em><em>a</em><em> </em><em>powerful</em><em> </em><em>tool</em><em> </em><em>to</em><em> </em><em>locating</em><em> </em><em>oil</em><em> </em><em>and</em><em> </em><em>gas</em><em> </em><em>.</em>

5 0
3 years ago
What is the representative particle for silicon
valentina_108 [34]
<span>The representative particle for silicon is atom of silicon.
</span>Representative particles can be atoms, molecules, formula units or ions. Representative particles depend on the nature of the substance. Silicon is chemical element made of atoms.
For sodium chloride (NaCl) for example, representative particles are ions.
7 0
3 years ago
Sodas are not only full of sugar (124 grams/L), but they are also acidic and will dissolve your teeth, composed of hydroxyapatit
Naya [18.7K]

Answer:

The pH of the HCl solution is 3.9

Explanation:

Knowing the molar mass of HCl (36.5g/mol) it is possible to calculate the number of moles of HCl in the solution,

\frac{1.5x10^{-3}g}{36.5g/mol} = 4.1x10^{-5}moles of HCl

HCl is a strong acid and when added to water will form H+ and Cl-, thus the moles of HCl are equal to moles of H+ in 354 mL of water

\frac{4.1x10^{-5}moles }{354mL} x 1000= 1.16x10^{-4} M

The concentration of protons in the solutions is 1.16x10^{-4} M.

The expression used to calculate the pH is

pH = -Log ([H^{+}]) = -Log (1.16x10^{-4} M) = 3.9

Hence, the pH of the HCl solution is 3.9 and Pepsi has a pH of 3.4 approximately, so they have almost the same pH.

3 0
3 years ago
Other questions:
  • Determine how many grams of sodium phosphate would be needed to prepare 455 ml of a 2.50% (m/v) sodium phosphate solution
    12·1 answer
  • 23 Which term identifies the half-reaction that occurs at the anode of an operating electro­chemical cell?
    8·2 answers
  • A flask containing neon gas is connected to an open-endedmercury manometer. The open end is exposed to the atmosphere, wherethe
    11·1 answer
  • an engineer wishes to design a container that will hold 12.0 mol of ethane at a pressure no greater than 5.00x10*2 kPa and a tem
    8·1 answer
  • Each of the following substrates can react with a nucleophile in a substitution reaction. Select the substrate that cannot under
    13·1 answer
  • Is aluminum flammable
    14·2 answers
  • Physical and chemical properties, such as color, density, boiling point, solubility, conductivity, and flammability, A. do not d
    13·1 answer
  • What is the empirical formula of a molecule containing 18.7% lithium, 16.3% carbon, and 65% oxygen?
    15·1 answer
  • Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.
    9·1 answer
  • 23 grams of sodium reacts with 293 cm 3 of water that is initially at 298 k. it produces an enthalpy change of 197 kj. what is t
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!