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2 years ago

PLEASE PLEASE PLEASE HELP, I KNOW YOU WONT BUT, WHOEVER ANSWERS IS THE KINDEST PERSON ON EARTH!!!!!!!!!!!

Chemistry

1 answer:

andrey2020 [161]2 years ago

8 0

Population- The amou t of living organisms/beings that can live and thrive in a certain sized area

things that can cause organisms to compete
-Food
-Water
-Shelter*(I am not 100% on this, forgive me)

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Which statement is best supported by this scale? (LT 2)

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How many mols are present in 5.24 x 1024 atoms of Carbon tetra fluoride?

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2 years ago

What properties does a substance have to have to be a mineral?.

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2 years ago

If I had 3.50 x 10 24molecules of Cl2 gas, how many grams is this?

Zinaida [17]

Answer:

412 g Cl₂

General Formulas and Concepts:

Atomic Structure

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

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

[Given] 3.50 × 10²⁴ molecules Cl₂

[Solve] grams Cl₂

Step 2: Identify Conversions

Avogadro's Number

[PT] Molar Mass of Cl - 35.45 g/mol

Molar Mass of Cl₂ - 2(35.45) = 70.9 g/mol

Step 3: Convert

[DA] Set up: $\displaystyle 3.50 \cdot 10^{24} \ molecules \ Cl_2(\frac{1 \ mol \ Cl_2}{6.022 \cdot 10^{23} \ molecules \ Cl_2})(\frac{70.9 \ g \ Cl_2}{1 \ mol \ Cl_2})$
[DA] Divide/Multiply [Cancel out units]: $\displaystyle 412.072 \ g \ Cl_2$

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

412.072 g Cl₂ ≈ 412 g Cl₂

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2 years ago

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