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1 year ago

This is an impossible formula. Pretend it is real.

Chemistry

1 answer:

guapka [62]1 year ago

7 0

There are eight moles of oxygen atoms in 1 mole of $Mn_{9}(ClO_{4}) _{2}$ .

<h3>What is the number of moles of oxygen atoms?</h3>

We know that a compound is composed of atoms. The atoms that make up the molecule are chemically combined. It is usual that the number of atoms in the compound would correspond with the chemical formula.

Now we have the compound $Mn_{9}(ClO_{4}) _{2}$ . In one mole of the compound we have;

9 Moles of manganese atom
2 moles of chlorine atom
8 moles of oxygen atom

Thus, there are eight moles of oxygen atoms in 1 mole of $Mn_{9}(ClO_{4}) _{2}$ .

Learn more about atoms;brainly.com/question/1566330

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Give the value of the quantum number ℓ, if one exists, for a hydrogen atom whose orbital angular momentum has a magnitude of 6√(

MakcuM [25]

Answer:

For this angular momentum, no quantum number exist

Explanation:

From the question we are told that

The magnitude of the angular momentum is $L = 6\sqrt{\frac{h}{2 \pi} }$

The generally formula for Orbital angular momentum is mathematically represented as

$L = \sqrt{(l * (l + 1)) } * \frac{h}{2 \pi}$

Where $l$ is the quantum number

now

We can look at the given angular momentum in this form as

$L = 6\sqrt{\frac{h}{2 \pi} } = \sqrt{36} * \sqrt{\frac{h}{2 \pi}} }$

comparing this equation to the generally equation for Orbital angular momentum

We see that there is no quantum number that would satisfy this equation

5 0

3 years ago

What would be the mass of 3 moles of water molecules?

ankoles [38]

Answer:

$\boxed {\boxed {\sf A. \ 54 \ grams }}$

Explanation:

To convert from moles to grams, we must use the molar mass.

Recall that water's molecular formula is H₂O. It contains hydrogen and oxygen. Look up the two elements masses on the Periodic Table.

Hydrogen (H): 1.008 g/mol
Oxygen (O): 15.999 g/mol

Now, use these masses to find water's mass. The subscript of 2 tells us there are 2 atoms of hydrogen, so we multiply hydrogen's mass by 2 and add oxygen's.

H₂O= 2(1.008 g/mol) + 15.999 g/mol = 18.015 g/mol

Use the molar mass as a ratio.

$\frac{18.015 \ g \ H_2 O}{ 1 \ mol \ H_2 O}$

Multiply by the given number of moles.

$3 \ mol \ H_2O*\frac{18.015 \ g \ H_2 O}{ 1 \ mol \ H_2 O}$

The moles of water will cancel.

$3 *\frac{18.015 \ g \ H_2 O}{ 1 }$

$3 *{18.015 \ g \ H_2 O}$

$54.045 \ g \ H_2O$

Round to the nearest whole number. The 0 in the tenth place tells us to leave the number as is.

$54 \ g \ H_2O$

There are about <u>54 grams</u> of water in 3 moles.

7 0

3 years ago

Read 2 more answers

What are two important quantum-mechanical concepts associated with the Bohr model of the atom?

malfutka [58]

Explanation:

The important quantum-mechanical concepts associated with the Bohr model of atom are :

1. Electrons are nothing but particles that revolve around the nucleus in discrete orbitals.

2. Energy is associated with each orbital is quantised. Meaning electron in each shell will have energy in multiple of a fixed quanta.

4 0

3 years ago

For the homogeneous solution, consisting of kcl and h2o, indicate the type of forces that are involved.

zubka84 [21]

<span>The pairs of substances I would expect to form homogeneous solutions when combined will form a homogeneous because both are polar and form dispersion forces, dipole-dipole and hydrogen bonding between the water molecules and ion-dipole forces between the K+ and Cl- ions and the water molecules.</span>

4 0

3 years ago

An enzyme is discovered that catalyzes the chemical reaction SAD ↔ HAPPY A team of motivated researchers sets out to study the e

Pepsi [2]

Answer:

The $K_{m}$ of a substrate will be "10 μM".