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
Soloha48 [4]
2 years ago
6

CH4 + O2 → CO2 + H2O

Chemistry
1 answer:
Scilla [17]2 years ago
8 0

Answer:

9.8 × 10²⁴ molecules H₂O

General Formulas and Concepts:

<u>Atomic Structure</u>

  • Reading a Periodic Table
  • Moles
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Organic</u>

  • Naming carbons

<u>Stoichiometry</u>

  • Analyzing reaction rxn
  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

[RxN - Unbalanced] CH₄ + O₂ → CO₂ + H₂O

[RxN - Balanced] CH₄ + 2O₂ → CO₂ + 2H₂O

[Given] 130 g CH₄

<u>Step 2: Identify Conversions</u>

Avogadro's Number

[RxN] 1 mol CH₄ → 2 mol H₂O

[PT] Molar Mass of C: 12.01 g/mol

[PT] Molar Mass of H: 1.01 g/mol

Molar Mass of CH₄: 12.01 + 4(1.01) = 16.05 g/mol

<u>Step 3: Stoichiometry</u>

  1. [DA] Set up conversion:                                                                                   \displaystyle 130 \ g \ CH_4(\frac{1 \ mol \ CH_4}{16.05 \ g \ CH_4})(\frac{2 \ mol \ H_2O}{1 \ mol \ CH_4})(\frac{6.022 \cdot 10^{23} \ molecules \ H_2O}{1 \ mol \ H_2O})
  2. [DA] Divide/Multiply [Cancel out units]:                                                           \displaystyle 9.75526 \cdot 10^{24} \ molecules \ H_2O

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

9.75526 × 10²⁴ molecules H₂O ≈ 9.8 × 10²⁴ molecules H₂O

You might be interested in
With which group would group 18 most likely bond
Mice21 [21]

Answer:

The noble gases (Group 18) are located in the right of the periodic table and were previously referred to as the "inert gases" due to the fact that their filled valence shells (octets) make them extremely nonreactivE

Explanation:

8 0
3 years ago
The mass number of a fluorine (F) atom is 19 . How many neutrons does it have
kiruha [24]
I think it would have 10 neutrons. Hope this helps :)
5 0
3 years ago
Which of these pH numbers indicates the highest
Korvikt [17]
<span>(1) 5 because it it below 7 and anything below ph 7 is acidic! Hope this helps you!! =')</span>
7 0
3 years ago
Read 2 more answers
The atomic mass of an imaginary element X is 30.7377 amu. Element X has three isotopes. One isotope has an isotopic mass of 30.5
ryzh [129]

Answer:

wuhwwisbsjsbsisjsbsjsjiw

Explanation:

bhajwjbw wjsjw bwuebe e

8 0
3 years ago
Draw the repeat unit of the copolymer used for artificial skin growth, which is formed by condensation polymerization of lactic
elena55 [62]
Answer is in Word document below (x - <span>number of units of </span>lactic acid,<span> 
</span>y - <span>number of units of </span><span>glycolic acid).</span>
PLGA is a copolymer of poly lactic acid (PLA) and poly glycolic acid (PGA). It is biocompatible and biodegradable copolymer.
Download docx
6 0
3 years ago
Read 2 more answers
Other questions:
  • Where would you find the element with least mass?
    13·1 answer
  • A sample of neon gas occupies a volume of 2.8L at 1.8 atm. What would its volume be at 1.2 atm?
    12·1 answer
  • Which of the following is not an allotrope of carbon ?
    13·1 answer
  • Write Lewis structures for the following molecules: (a) ICl, (b) PH3, (c) P4 (each P is bonded to three other P atoms), (d) H2S,
    5·1 answer
  • 13
    13·1 answer
  • Solutions of sodium sulfate and silver nitrate are mixed together.
    11·1 answer
  • Can somebody just name all the metalloids, gases, and liquids that are on the periodic table. please this is due in a hour!!!
    12·1 answer
  • NO FILES
    7·1 answer
  • What of the following is the BEST statement about dependent and independent variables?
    9·2 answers
  • PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!