If constant heat is added to ice water, what changes will take place and at what temperatures?

Chemistry

1 answer:

EleoNora [17]3 years ago

6 0

Answer:

Explanation:

When you heat ice, its temperature rises, but as soon as the ice starts to melt, the temperature stays constant until all the ice has melted. This happens because all the heat energy goes into breaking the bonds of the ice's crystal lattice structure. :)

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10 points

Vesna [10]

Answer:

Explanation:

Use the molar mass of H2SO4 to get moles of H2SO4; 51.2g/98.079g=0.522

Divide 500 mL by 1000 to get L

Molarity = moles of solute/L of solution; so divide the moles by 0.5L

5 0

3 years ago

What is the pH of a 2.2 M solution of HClO4?

agasfer [191]

Since HClO4 is a strong acid it will completely dissociate in solution.

HClO4 + H2O --> H3O+ + ClO4-

Therefore, your concentration of HClO4 will be equal to your amount of H3O+, the conjugate acid in solution.

The Ka expression is as follows:

Ka= [H3O+][ClO4-] / [HClO4]

So you know that -log [H3O+] gets you pH, so just plug in [2.2] as your concentration of H3O+ and your answer should be -.34 pH

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4 years ago

Mario uses a hot plate to heat a beaker of 50mL of water. He used a thermometer to measure the temperature of the water. The wat

TEA [102]

The boiling point decreases as the volume decreases.

<u>Explanation:</u>

The Temperature - Volume law otherwise called as Charles law is applied, which says that the volume of the given gas at constant pressure is directly proportional to the temperature measured in Kelvin. As the volume increases, the temperature also increases, if the volume decreases, then the temperature also decreases.

$$\frac{V}{T} = constant$