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# Ten liters of nitric acid of specific gravity of 1.41 containing 67.5% HNO3 by weight were mixed with acid of specific gravity of 1.151 containing 24.99% HNO3 by weight to make an acid of specific gravity of 1.316 containing50.05% HNO3 by weight. How much of the second acid was used? What is the molarity of the mixture?​ Axelamat

The most abundant element on Earth is known as Oxygen. It is also the most abundant elements in the first layer of the earth or the crust, making up 46.6% of Earth's mass. In Photosynthesis, oxygen are released in the atmosphere and it is very essentials for humans and animals to survive. Humans and animals needs oxygen as a source of energy in order to survive. Oxygen contain 8 protons or having 8 atomic number. It is a highly reactive nonmetal elements which is considered to acid forming. Oxygen also helps change the scorching environment of earth way back millions of years ago by forming ozone in the atmosphere and protects the earth from dangerous radiation coming from solar radiation. smith21

The basic steps to distillation are: Add heat to a liquid mixture with two or more main substances; for example, a water and ethanol mixture. As the liquid heats, components with the lower boiling points will begin to vaporize and rise through the column.

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Explanation: molinamaureen080693

We can measure the concentration of a substance in the form of - moles, percentage, weight, volume, mole fraction, and so on.

We know that, Molarity can be calculated by using this formula; ;

where n = Number of moles of the solute

and V = Volume of the solution (per 1 litre)

And, for Mixed Molarity, we use this formula; × = ( × ) + ( × )

⇒ × + × ÷ where, Mixed Volume = Mixed Molarity = Volume of Solution 1 = Molarity of Solution 1 = Volume of Solution 2 = Molarity of Solution 2

Now, we find the Molarity from a stated gravity and purity (w/w%) via;

M = {Solution's specified gravity × 1000 mL or 1  L× Purity (w/w%) ÷ 100} ÷ Molecular weight

According to the question, we have;

Volume of Nitric Acid = 10 L

Nitric Acid's specified gravity = 1.41

also, containing 67.5% by weight;

so, M =   (1.41 × 1000 × 67.5 ÷ 100) ÷ 63 = 15.107

On mixing with the second acid of the specified gravity of 1.151 and having 24.99% by weight, we get; = (1.151 × 1000 × 24.99 ÷ 100) ÷ 63 = 4.57

Then, the molarity of the mixture; = 1.316 × 1000 × 50.05 ÷ 100 ÷ 63 = 10.45 So, mixed molarity of two solutions; = [( × ) + ( × )] ÷ ( )

⇒ 10.45 = [(15.107 × 10) + (4.57 × )] ÷ (10 + )

⇒ 15.107 + 4.57 = 10.45 (10 + )

⇒ 46.57 = 5.88  = 7.92 L

Ans) Volume of the second acid = 7.92 L; Molarity of the mixture = 10.45 mol/L  ### Other questions on the subject: Chemistry Chemistry, 28.10.2019, HaHannah
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