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3 years ago

What is the density of the liquid in g/ml?

Chemistry

1 answer:

Mumz [18]3 years ago

3 0

If you weigh 1.00 mL of liquid water it will have a mass of about 1 g so its density is about 1 g/mL or 1 g mL-1.

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A chemist reacts H2 with excess N2. The reaction yields 60 grams of NH3. however, you calculaye you should have recovered 80 gra

Finger [1]

Answer:

Percent yield = 75%

Explanation:

Given data:

Actual yield of ammonia = 60 g

Theoretical yield of ammonia = 80 g

Percent yield = ?

Solution:

Percent yield is calculated dividing the actual yield by theoretical yield and multiply by 100.

Formula:

Percent yield = Actual yield / Theoretical yield × 100

Now we will put the values in formula.

Percent yield = 60 g/ 80 g × 100

Percent yield = 0.75 × 100

Percent yield = 75%

So if the reaction yield is 60 g and calculated yield ( theoretical yield) is 80 g then the percent yield would be 75%.

3 0

4 years ago

Help in my exam plzz now

swat32

Answer:

yes your answer is correct

I hope it helps mate

I will always help you understanding your assingments have a great day

#Captainpower:)

8 0

3 years ago

Which of the models shown below best represents the modern understanding of the structure of the atom?

rjkz [21]

Answer:

The answer may be A because that's what I believe

4 0

3 years ago

The density of lithium is 0. 546 g/cm3. what volume is occupied by 3. 66 x 10 23 atoms of lithium?

s344n2d4d5 [400]

The volume occupied by 3.66 x $10^{23}$ atoms of lithium is 7.73 $cm^3$

<h3>What is Density?</h3>

The density of a substance is defined as the mass of the substance per unit volume. It is often denoted by the symbol ρ

The density of a substance is given by,

$\rho = \frac{m}{V}$

The mass of a substance is the measure of the amount of matter present in it. It is generally measured in grams (g) or kilograms (kg).

The volume of a substance is defined as the amount of 3D space occupied by it.

<h3>What is Mole Concept?</h3>

It is a concept which uses mole as a unit to measure the number of atoms, molecules or ions.

A mole is defined as the amount of substance which has the same number of elementary particles as there are atoms in 12 grams of $\ce{^{12}C}$

1 mole = Avogadro's number = 6.022 x $10^{23\\$ atoms

<h3>Steps to find out the volume</h3>

Molar Mass of Lithium = 6.94 g/mol

1 mole of Lithium has 6.022 x $10^{23}$ atoms

3.66 x $10^{23}$ atoms of lithium has molar mass = $\frac{6.94 g}{6.022\times10^{23} } \times 3.66 \times 10^{23}$

$m = 4.218 g$

Substitute in density formula,

$\rho = \frac{m}{V}$

$V = \frac{m}{\rho}$

$=\frac{4.218g}{0.546g/cm^3}$

= 7.73 $cm^3\\$

Therefore, 3.66 x $10^{23}$ atoms of lithium occupies 7.73 $cm^3\\$ of volume.

Learn more about the mole concept:

brainly.com/question/1427235

#SPJ4

3 0

2 years ago

We fell hot,sour and fried during ant bite why

Olegator [25]

Answer:

Ants don’t literally 'bite’ you. They just let out a small drop of acidic venom off their mouths on to your skin which causes you to feel that blistering pain like a burn. This burning sensation lasts for a while or even longer depending on the type of ant you have been stung by.

Red or even fire ants bit you with a similar process, though produce different results. They do so by pinching your skin in between their mandibles and then releasing a small spurt of their acidic venom below your skin. This causes the immediate burning and blistering sensation, like a sting or a bite

7 0

3 years ago