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3 years ago

Where can you buy lithium

Chemistry

2 answers:

ss7ja [257]3 years ago

7 0

On the website. just type in your own question!!!

Ivenika [448]3 years ago

5 0

You can get it on google on Herbs Direct.

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The density of a liquid is 1.28 g/mL. What is the volume of a 32.4 g sample of this liquid in mL units?

alex41 [277]

The answer is 25.3125mL

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3 years ago

An unknown compound with a molar mass of 223.94 g/mol consists of 32.18% c, 4.50% h, and 63.32% cl. find the molecular formula f

Dima020 [189]

The actual number of atoms of each element present in the molecule of the compound is represented by the formula known as molecular formula.

Molar mass of the unknown compound = 223.94 g/mol (given)

Mass of each element present in the unknown compound is determined as:

Mass of carbon, $C$ :

$\frac{32.18}{100}\times 223.94 = 72.06 g$

Mass of hydrogen, $H$ :

$\frac{4.5}{100}\times 223.94 = 10.08 g$

Mass of chlorine, $Cl$ :

$\frac{63.32}{100}\times 223.94 = 141.79 g$

Now, the number of each element in the unknown compound is determined by the formula:

$number of moles = \frac{given mass}{molar mass}$

Number of moles of $C$ :

$number of moles = \frac{72.06}{12} = 6.005 mole\simeq 6 mole$

Number of moles of $H$ :

$number of moles = \frac{10.08}{1} = 10.08 mole\simeq 10 mole$

Number of moles of $Cl$

$number of moles = \frac{141.79}{35.5} = 3.99 mole\simeq 4 mole$

Dividing each mole with the smallest number of mole, to determine the empirical formula:

$C_{\frac{6}{4}}H_{\frac{10}{4}}Cl_{\frac{10}{4}}$

$C_{1.5}H_{2.5}Cl_{1}$

Multiplying with 2 to convert the numbers in formula into a whole number:

So, the empirical formula is $C_{3}H_{5}Cl_{2}$ .

Empirical mass = $12\times 3+1\times 5+2\times 35.5 = 112 g/mol$

In order to determine the molecular formula:

n = $\frac{molar mass}{empirical mass}$

n = $\frac{223.94}{112} = 1.99 \simeq 2$

So, the molecular formula is:

$2\times C_{3}H_{5}Cl_{2} = C_{6}H_{10}Cl_{4}$

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3 years ago

DawdDAWdADdwaadadadawddawd

Ronch [10]

Answer:

yyuuuyytt

Explanation:

ggyhggggg,,,,,,,76yyygtyyhgyyggyuhu ubbububuuh7h7h

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3 years ago

According to the equation for the kinetic energy of a moving object, which gas would have the lowest average velocity, assuming

Illusion [34]

Answer:

Explanation:

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3 years ago

This is a physical combination of one substance dissolved in another.

FinnZ [79.3K]

Answer:

Solution is a physical combination of one substance dissolved in another.

Explanation:

A solution is a homogeneous mixture.

The solutions are characterized by uniform composition and one phase, but they can be either solid, liquid or gases.

In a solution there is, at least, one solute substance and one or more solvents.

A typical solution is salt and water: salt is the solute, which is dissolved, in water (the solvent).

In a solution, you can not distinguish visually the solute from the solvent, but, since they are physically, and not chemically, combined, they can be separated by physical media, e.g. evaporation.

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3 years ago

Read 2 more answers