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3 years ago

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Chemistry

1 answer:

Kipish [7]3 years ago

7 0

Step 3

Explanation:

Step 3 contains a major error.

In step 3, it is stated as molten rocks are heated.

Molten rocks are not heated.

Solid rocks are heated as the plate is pushed down under the earth due to movement of tectonic plates.

When the rock is heated, the rock is melted to become molten.

The molten rock is called magma.
When the magma cools, it solidifies to form igneous rocks.

A molten rock is not heated to form igneous rocks.

learn more:

Volcanic eruptions brainly.com/question/5055821

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What is the mass in grams of ba(io3)2 can be dissolved in 500 ml of water at 25 degrees celcius?

lesya [120]

The mass of Ba(IO3)2 that can be dissolved in 500 ml of water at 25 degrees celcius is 2.82 g

<h3>What mass of Ba(IO3)2 can be dissolved in 500 ml of water at 25 degrees celcius?</h3>

The Ksp of Ba(IO3)2 = 1.57 × 10^-9

Molar mass of Ba(IO3)2 = 487 g/mol?

Dissociation of Ba(IO3)2 produces 3 moles of ions as follows:

$Ba(IO_{3})_{2} \leftrightharpoons Ba^{2+} + 2\:IO_{3}^{-}$

$Ksp = [Ba^{2+}]*[IO_{3}^{-}]^{2}$

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moles of Ba(IO3)2 = 1.16 × 10^-3 × 0.5 = 0.58 × 10^-3 moles

mass of Ba(IO3)2 = 0.58 × 10^-3 moles × 487 = 2.82 g

Therefore, mass Ba(IO3)2 that can be dissolved in 500 ml of water at 25 degrees celcius is 2.82 g.

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