All categories

1 year ago

11. You have 700 grams of AgO. How many moles are present?

Chemistry

1 answer:

solniwko [45]1 year ago

7 0

<h2>Answer:</h2>

5.65moles

<h2>Explanations:</h2>

The formula for calculating the number of moles the compound contain is given as:

$moles=\frac{Mass}{Molar\text{ mass}}$

Given the following parameters

Mass of Ag = 700grams

Determine the molar mass of AgO

Molar mass = 107.87 + 16

Molar mass = 123.87g/mol

Determine the moles of AgO

$\begin{gathered} moles=\frac{700}{123.87} \\ moles\text{ of AgO}=5.65moles \end{gathered}$

Hence the moles of AgO present is 5.65moles

You might be interested in

What causes a change in air pressure

lutik1710 [3]

This change in pressure is caused by changes in air density, and air density is related to temperature.

3 0

3 years ago

1. The density of a bar of soap is 0.8 g/mL. If the mass of the soap is 108.5 9.

astra-53 [7]

Answer:

Volume = 135.7375

Explanation:

volume = mass/density

v = m/d

v = 108.59/0.8

v = 135.7375

3 0

3 years ago

Scientists are attempting to determine the composition of an unknown compound. The compound has a high melting point and is a go

zlopas [31]

Answer C

Explanation:

I took the test

3 0

3 years ago

A solution is prepare using 45.2 g of an unknown (nonelectrolyte) dissolved in 476.4 g of water. The freezing point depression

Ray Of Light [21]

Answer:

94.4g/mol is molar mass of the unknown

Explanation:

Based on the freezing point depression equation:

ΔT = Kf*m*i

<em>Where ΔT is the depression in freezing point (1.87°C)</em>

<em>Kf is freezing point depression constant of water (1.86°Ckg/mol)</em>

<em>And i is Van't Hoff factor (1 for nonelectrolyte solutes)</em>

<em />

Replacing:

1.87°C = 1.86°CKg/mol*m*i

1.005mol/kg solvent = m

Using the mass of the solvent we can find the oles of the nonelectrolyte:

1.005mol/kg solvent * 0.4764kg = 0.479moles

Molar mass is defined as the ratio between mass of a substance in grams and moles, that is:

45.2g / 0.479mol =

<h3>94.4g/mol is molar mass of the unknown</h3>

6 0

3 years ago

Explain and illustrate the notation for distinguishing between the different p orbitals in a sublevel.

masha68 [24]

Here, the three different notation of the p-orbital in different sub-level have to generate

The value of azimuthal quantum number (l) for -p orbital is 1. We know that the magnetic quantum number $m_{l}$ depends upon the value of l, which are -l to +l.

Thus for p-orbital the possible magnetic quantum numbers are- -1, 0, +1. So there will be three orbitals for p orbitals, which are designated as $p_{x}$ , $p_{y}$ and $p_{z}$ in space.

The three p-orbital can be distinguish by the quantum numbers as-

For 2p orbitals (principal quantum number is 2)

1) n = 2, l = 1, m = -1

2) n = 2, l = 1, m = 0

3) n = 2, l = 1, m = +1

Thus the notation of different p-orbitals in the sub level are determined.

6 0

3 years ago