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Anestetic [448]

3 years ago

8

The molecular structure of water contains two atoms of hydrogen and one atom of oxygen . When water reaches its boiling point an

d turns into water vapor , what happens to its molecular structures

1 answer:

Arisa [49]3 years ago

4 0

Molecules starts to get farther apart from each other. At boiling point the state of water changes to gas.

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What is the formula for calculating the energy of a photon?

iren2701 [21]

E=hf is the answer gotta run now hope the best for yall

5 0

4 years ago

What is the different between a mixture and a compound?

krek1111 [17]

A compound is 2 or more substances chemically combined, mixtures arent

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3 years ago

0.50 g of hydrogen chloride (HCl) is dissolved in water to make 4.0 L of solution. What is the pH of the resulting hydrochloric

svlad2 [7]

Explanation:

Given the mass of HCl is ---- 0.50 g

The volume of solution is --- 4.0 L

To determine the pH of the resulting solution, follow the below-shown procedure:

1. Calculate the number of moles of HCl given by using the formula:

$number of moles of a substance=\frac{given mass of the substance}{its molecular mass}$

2. Calculate the molarity of HCl.

3. Calculate pH of the solution using the formula:

$pH=-log[H^+]$

Since HCl is a strong acid, it undergoes complete ionization when dissolved in water.

$HCl(aq)->H^+(aq)+Cl^-(aq)$

Thus, $[HCl]=[H^+]$

Calculation:

1. Number of moles of HCl given:

$number of moles of a substance=\frac{given mass of the substance}{its molecular mass}\\=0.50g/36.5g/mol\\=0.0137mol$

2. Concentration of HCl:

$Molarity of HCl=\frac{number of moles of HCl}{its molar mass}\\=\frac{0.0137 mol}{4.0 L} \\= 0.003425 M$

3. pH of the solution:

$pH=-log[H^+]\\=-log(0.003425)\\=2.47$

Hence, pH of the given solution is 2.47.

3 0

3 years ago

The energy transfer between the system and the surroundings, in the form of heat at constant pressure is described by which of t

kicyunya [14]

I think the answer would be d but not 100% sure

4 0

4 years ago

If a plant has a total of 17g of carbon dioxide and water reacting in photosynthesis, then how much glucose and oxygen will the

love history [14]

Answer:

Basically it would be 8.5g. Not total sure.

Explanation:

If its right plz give brainlest.

6 0

3 years ago

Read 2 more answers