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2 years ago

7

Sprite: When mixed with red cabbage water, resulting solution turned red.

2 answers:

Naddika [18.5K]2 years ago

8 0

<h2>Answer : Option B) Watermelon Juice.</h2><h3>Explanation :</h3>

When the experiment is conducted using the red cabbage water (already pink/purple in color) in three parts using sprite, watermelon juice and egg whites; the effect on the red cabbage water was in red color, purple (Neutral) and green in color respectively.

These color indicates -

Red - Acid

Pink/purple - Neutral

Green - Base.

So, when watermelon juice was mixed with the red cabbage water it didn't changed the color, which clearly indicates that watermelon juice was neutral in nature.

german2 years ago

6 0

A) Egg Whites is the correct answer

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A solution is 40 cetic acid by mass. the density of this solution is 1.049 g/ml. Calculate the mass of pure acetic acid in 220 m

taurus [48]

The mass of pure acetic acid in 220 ml of the given solution at 20°C is 92.311 g

<h3>What is Acetic acid?</h3>

Acetic acid is a type of carboxylic acid and also known as ethanoic acid

Its formula is CH₃COOH.

It is an organic compound and is a colorless liquid

It is mostly used in the production of vinegar

40 % acetic acid by mass means,

40 g of acetic acid is dissolved in 100 g of solution.

The density of solution at 20°C,

$\rho = 1.049 g/ml$

We know,

$\rho = \frac{m}{V}$

$V = \frac{m}{\rho}$

The volume of the solution, $V = \frac{100}{1.049}$ = 95.33 ml

95.33 ml of solution contains 40 g of pure Acetic acid

220 ml of solution contains $\frac{40 \times 220}{95.33}$ = 92.311 g of pure Acetic acid

Thus, the mass of pure Acetic acid in 220 ml of solution at 20°C is 92.311 g

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1 year ago

How many particles are in one mole of copper (II) sulfate, CuSO4?

Kobotan [32]

2. Avogadro’s number

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2 years ago

A 3.0 M HCl(aq) solution contains a total of

goblinko [34]

Molarity = number of moles / volume in liters solution

Answer (3)

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2 years ago

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Define the term relative atomic mass, A.

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The mass of an atom and the equivalent of to the number of protons and neutrons in the atom

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2 years ago

When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find

I am Lyosha [343]

<h3>Answer:</h3>

Balanced equation: 4Fe + 3O₂ → 2Fe₂O₃

Moles of oxygen gas = 9 moles

<h3>Explanation:</h3>

To answer the question;

We first write the balanced equation between iron metal and Oxygen

The balanced equation is given as;

4Fe + 3O₂ → 2Fe₂O₃

We are given 6 moles of Fe₂O₃

We are required to determine the number of moles of oxygen needed to form 6 moles of Fe₂O₃.

From the equation, 3 moles of oxygen gas reacts to produce 2 moles of Fe₂O₃

This means, the mole ratio of O₂ to Fe₂O₃ is 3 : 2

Therefore; Moles of O₂ = Moles of Fe₂O₃ × 3/2

Hence, moles of oxygen = 6 moles × 3/2

= 9 moles

Thus, Moles of Oxygen needed is 9 moles

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2 years ago