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Dmitriy789 [7]
3 years ago
5

Plz someone help plz show your work and I’ll transfer pay u❤️

Chemistry
1 answer:
77julia77 [94]3 years ago
5 0
Ok you need to download this app called don’t know who I want
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A is the answer I got. 
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What is the mass, in grams, of 28.80 ml of acetone?
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density of acetone in gm/cm^3 is 0.791

=28.80cm^3*0.791 g/cm63

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A gas has a volume of 0.50 L, a pressure of 0.5 atm, and a temperature of 40°C. What will be the new temperature if the gas is e
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3 years ago
How many moles of methane are in 7.31*10^25 molecules?
GrogVix [38]
<h3>Answer:</h3>

121 mol CH₄

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Organic</u>

  • Writing chemical compounds
  • Writing organic structures
  • Prefixes
  • Alkanes, Alkenes, Alkynes

<u>Atomic Structure</u>

  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<h3>Explanation:</h3>

<u>Step 1: Define</u>

7.31 × 10²⁵ molecules CH₄

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

Avogadro's Number

<u>Step 3: Convert</u>

<u />\displaystyle 7.31 \cdot 10^{25} \ molecules \ CH_4(\frac{1 \ mol \ CH_4}{6.022 \cdot 10^{23} \ molecules \ CH_4} ) = 121.388 \ mol \ CH_4<u />

<u />

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

121.388 mol CH₄ ≈ 121 mol CH₄

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3 years ago
A clasping handshake may be used as an analogy for an enzyme-catalyzed reaction because it represents the specific manner in whi
d1i1m1o1n [39]

Answer:

binds to substrate

Explanation:

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3 years ago
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