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3 years ago

One of the main ideas of the Quantum Theory is that:

2 answers:

8 0

The energy of an electron can be change only by set amounts.

The electrons in an energy level of an atom can only move to a higher or lower energy level only if it absorbs or emits a certain amount of energy. If the electron does not have enough energy to move to the next energy level then it will never move.

Sergio [31]3 years ago

8 0

the energy of an electron can be changed by only set amounts

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Fluorine gas and water vapor react to form hydrogen fluoride gas and oxygen. What volume of hydrogen fluoride would be produced

mafiozo [28]

Answer:

Hi, the question is incomplete. However, the question is about the calculation of volume of a product when the volume of one of the reactants is provided.

9.587 cm^3

Explanation:

The balanced equation for the chemical reaction is shown below:

$2F_{2(g)} + 2H_{2}O_{(g)}$ ⇒ $4HF_{(g)} + O_{2(g)}$

In the chemical reaction above, 2 moles of water produced 4 moles of hydrogen fluoride. If 4.8 cm^3 of water were consumed, we can calculated the volume of hydrogen fluoride that would be produced as follow:

Using STP, 1 mole of gas has a volume of 22.4 L

Thus, 4.8 cm^3 = 0.0048 L is equivalent to 2.14*10^-4

since 2 moles of water produced 4 moles of hydrogen fluoride, therefore, 2.14*10^-4 would produced 2*2.14*10^-4 = 4.28*10^-4 moles

we can convert the moles to L by multiplying with 22.4

volume of hydrogen fluoride = 4.28*10^-4 * 22.4 = 0.009587 L = 9.587 cm^3

5 0

4 years ago

Read 2 more answers

which of the following equations depicts a balanced equation, Na2CO3+2HCl=2NaCl+CO2+H2O, NaCO3+HCl=2NaCl+CO2+1H2O, 2Na2CO3+3HCl=

SashulF [63]

Explanation:

The first one is balanced equation

8 0

3 years ago

Read 2 more answers

What is stoichiometry used for?

Helga [31]

The answer is B :) hope this helped at least

5 0

3 years ago

If 0.850 L of a 5.00-Msolution of copper(II) nitrate, Cu(NO3)2, is diluted to a volume of 1.80 L by the addition of water, what

7nadin3 [17]

The molarity of the diluted solution is 2.36M

M₁L₁ = M₂L₂

M₂ = M₁L₁/L₂

M₂ = (5.00 M x 0.850 L)/ 1.80 L

M₂ = 2.36 M Cu(NO₃)₂

<h3>Molarity </h3>

The volume of a material present in a given volume of solution is known as its molarity (M). The number of moles of a solute in a liter of solution is referred to as molarity. The term "molarity" can also refer to a solution's molar concentration. Molarity (M) is the number of moles of a solute per liter of a solution, also referred to as the molar concentration of a solution. The symbols mol/L or, more commonly, M can be used to represent molarity. The word "molar concentration" refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution. Molarity, amount, and substance concentration are other names for this term.

Learn more about molarity here:

brainly.com/question/8732513

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8 0

2 years ago

If a balloon containing 3000 L of gas at 39C and 99 kPa rises to an altitude where the pressure is 45.5 kPa and the temperature

tiny-mole [99]

Answer:

The answer to your question is below

Explanation:

Data

Volume 1 = V1 = 3000 l

Temperature 1 = T1 = 30°C

Pressure 1 = P1 = 99 kPa

Volume 2 = ?

Temperature 2 = T2 = 16°C

Pressure 2 = P2 = 45.5 kPa

Process

1.- To find the new volume we need to convert the temperature to °K

T1 = 30 + 273 = 303°K

T2 = 16 + 273 = 289°K

2.- Use the Combined gas law

P1V1/T1 = P2V2/T2

-Solve it for V2

V2 = P1V1T2 / T1P2

-Substitution

V2 = (99 x 3000 x 289) / (303 x 45.5)

-Result

V2 = 85833000 / 13786.5

V2 = 6225.8 l

There are no conversion factor ratios.

4 0

3 years ago