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2 years ago

Liquids that do not mix are called

Chemistry

1 answer:

djyliett [7]2 years ago

3 0

Answer:

Immiscible liquids

Explanation:

Immiscible comes from two words; 'im' indicating a negation or a contradiction; and 'miscere' meaning to mix.

Putting the words together, immiscible means not able to mix.

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Methyl salicylate is a common active ingredient in liniments such as ben-gay. It is also known as oil of wintergreen. It is made

arlik [135]

Answer: The empirical formula is $C_3H_3O$ .

Explanation:

The chemical equation for the combustion of hydrocarbon having carbon, hydrogen and oxygen follows:

$C_xH_yO_z+O_2\rightarrow CO_2+H_2O$

where, 'x', 'y' and 'z' are the subscripts of Carbon, hydrogen and oxygen respectively.

We are given:

Mass of $CO_2$ = 12.24 g

Mass of $H_2O$ = 2.505 g

Molar mass of carbon dioxide = 44 g/mol

Molar mass of water = 18 g/mol

For calculating the mass of carbon:

In 44g of carbon dioxide, 12 g of carbon is contained.

So, in 12.24 g of carbon dioxide, = $\frac{12}{44}\times 12.24=3.338g$ of carbon will be contained.

For calculating the mass of hydrogen:

In 18g of water, 2 g of hydrogen is contained.

So, in 2.505 g of water, = $\frac{2}{18}\times 2.505=0.278g$ of hydrogen will be contained.

Mass of oxygen in the compound = (5.287) - (3.338+0.278) = 1.671 g

Step 1 : convert given masses into moles.

Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{3.338g}{12g/mole}=0.278moles$

Moles of H= $\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{0.278g}{1g/mole}=0.278moles$

Moles of O= $\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{1.671g}{16g/mole}=0.104moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = $\frac{0.278}{0.104}=3$

For H = $\frac{0.278}{0.104}=3$

For O = $\frac{0.104}{0.104}=1$

The ratio of C : H : O = 3: 3: 1

Hence the empirical formula is $C_3H_3O$ .

5 0

3 years ago

How many mole of ZnCl2 will be produced from 55.0 g of Zn, assuming HCL is available in excess

Ilia_Sergeevich [38]

Answer:

0.84 mol

Explanation:

Given data:

Moles of ZnCl₂ produced = ?

Mass of Zn = 55.0 g

Solution:

Chemical equation:

2HCl + Zn → ZnCl₂ + H₂

Number of moles of Zn:

Number of moles = mass / molar mass

Number of moles = 55.0 g/ 65.38 g/mol

Number of moles = 0.84 mol

Now we will compare the moles of Zn with ZnCl₂ from balance chemical equation.

Zn : ZnCl₂

1 : 1

0.84 : 0.84

So from 55 g of Zn 0.84 moles of zinc chloride will be produced.

8 0

3 years ago

I need help with my math but you can only choose one correct answer

Anika [276]

Answer:

Explanation:

Decomposition is the answer.

If a compound breaks into two or more parts then it is called decomposition.

7 0

2 years ago

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There is a limited amount of matter on Earth.

riadik2000 [5.3K]

I'm not sure where the question is here. Yes it is true that there is a limited amount of matter on Earth...

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3 years ago

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What is the name of the table that summarizes the key concepts lf the chapter

Harlamova29_29 [7]

Answer:

Table price is 100 dolar

Explanation:

Because the table is to expensive to buy in low price

8 0

2 years ago