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2 years ago

Calculate each of the following quantities:

Chemistry

1 answer:

morpeh [17]2 years ago

8 0

Amount (mol) of solute in 145.6 L of 0.850 M sodium cyanide

<h3>What is molarity?</h3>

Molar concentration (also known as molarity, quantity concentration, or substance concentration) is a measure of the concentration of a chemical species in a solution, specifically of a solute, in terms of amount of substance per unit volume of solution. The most often used unit for molarity in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is referred to as 1 molar, or 1 M.

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You might be interested in

What is the molecular weight of potassium ( k2so4)

WINSTONCH [101]

Answer:

174.259 g/mol

Explanation:

The molecular weight of potassium (K2so4) is 174.259 g/mol .

Hope it is helpful to you

5 0

3 years ago

Wally fluoride is an imaginary gaseous

mihalych1998 [28]

Answer:

$\rho =1.96\frac{g}{L}$

Explanation:

Hello there!

In this case, since this imaginary gas can be modelled as an ideal gas, we can write:

$PV=nRT$

Which can be written in terms of density and molar mass as shown below:

$\frac{P}{RT} =\frac{n}{V} \\\\\frac{P}{RT} =\frac{m}{MM*V}\\\\\frac{P*MM}{RT} =\frac{m}{V}=\rho$

Thus, by computing the pressure in atmospheres, the resulting density would be:

$\rho = \frac{165/760 atm * 314.2 g/mol}{0.08206\frac{atm*L}{mol*K}*425K} \\\\\rho =1.96\frac{g}{L}$

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7 0

3 years ago

Which of the following weathering processes involves the constant freezing and thawing of water?

Artemon [7]

Frost wedging

Explanation:

Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.

Some agents of weathering are wind, water, glacier and gravity.

In physical weathering, rocks are broken down mechanically into smaller bit.
Freezing and thawing allows for the propagation of physical weathering.
Water within cracks will expand when they freeze significantly.
This will further expand and widen the cracks.
When the ice thaws the stress is relieved.
When the process continues on and on over the year, a rock will eventually break down.
This is common around the temperate and polar regions.

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4 0

3 years ago

A tapping vessel opens in a tank like side. the tank has an outel for water on the upper side & a water inlet on the lower s

nadya68 [22]

Answer:

1. The above description is of hydraulic gravitation separation method.