# To produce 4.00 l of a 250. mm solutions of sodium hydroxide (naoh), how many grams of naoh must be dissolved

• Réponse publiée par: stacy05

Explanation:

blood is a heterogeneous mixture.

Because blood and plasma both are separate. Blood and plasma can be separated by centrifugation method which is a phisical change.

• Réponse publiée par: JUMAIRAHtheOTAKU

Hello!

How many moles of phosphoric acid are there in 658 grams of phosphoric acid ?

We have the following data:

Molar Mass of phosphoric acid (H3PO4)

H = 3*(1u) = 3 u

P = 1*(30.97u) = 30.97 u

O = 4*(16u) = 64 u

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Molar Mass of phosphoric acid (H3PO4) = 3 + 30.97 + 64

Molar Mass of phosphoric acid (H3PO4) = 97.97 (≈ 98 g/mol)

Now, let's make the rule three, grams relative to the mole (g/mol), let's see:

98 g ---------------- 1 mol

658 g -------------  y mol

Product of extremes equals product of means

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• Réponse publiée par: 09652393142

The term refers to a property that depends only on the amount of a substance is extensive property.

Extensive property of matter depends on the amount of substance present . The other choices do not depends on the amount of substance present.

Examples on Extensive property are the following:

Hope it Helps

• Réponse publiée par: sicienth

Hello!

What volume would 14 g of nitrogen gas occupy at STP ?

data:

m1 (solute mass) = 14 g

Molar Mass (MM) of nitrogen gas (N2) = 2*(14u) = 28 g/mol

Let's find the number of moles, let's see:

It is known that in STP (Standard Temperature and Pressure) one mole of any gas equals 22.4 L, then, what is the volume of the gas?

1 mol -------------------- 22.4 L

0.5 mol ---------------- y

multiply the means by the extremes

The volume occupied by the gas is 11.2 Liters

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I Hope this helps, greetings ... Dexteright02! =)

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To produce 4.00 l of a 250. mm solutions of sodium hydroxide (naoh), how many grams of naoh must be...