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3 years ago

Calculate the density of a substance that has a mass of 200 g and volume of 228 ml

Chemistry

1 answer:

Tju [1.3M]3 years ago

7 0

Answer:

<h3>The answer is 0.88 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass = 200 g

volume = 228 mL

We have

$density = \frac{200}{228} = \frac{50}{57} \\ = 0.8771929...$

We have the final answer as

Hope this helps you

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<h3>Answer:</h3>

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

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

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<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Unbalanced] Mg (s) + HCl (aq) → MgCl (aq) + H₂ (g)

↓

[RxN - Balanced] 2Mg (s) + 2HCl (aq) → 2MgCl (aq) + H₂ (g)

[Given] 3.25 mol Mg

[Solve] x g HCl

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

[RxN] 2 mol Mg → 2 mol HCl

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

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

Molar Mass of HCl - 1.01 + 35.45 = 36.46 g/mol

<u>Step 3: Stoich</u>

[S - DA] Set up: $\displaystyle 3.25 \ mol \ Mg(\frac{2 \ mol \ HCl}{2 \ mol \ Mg})(\frac{36.46 \ g \ HCl}{1 \ mol \ HCl})$
[S - DA] Multiply/Divide [Cancel out units]: $\displaystyle 127.61 \ g \ HCl$

<u>Step 4: Check</u>

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

127.61 g HCl ≈ 128 g HCl

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Calculate the density of a substance that has a mass of 200 g and volume of 228 ml​

Calculate the density of a substance that has a mass of 200 g and volume of 228 ml