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Vinvika [58]
3 years ago
14

Why do you convert the grams to moles as opposed to just leaving it in grams?​

Chemistry
1 answer:
Iteru [2.4K]3 years ago
4 0

Explanation:

The number of moles is a more expressive unit in chemical calculations.

A mole is a convenient unit of quantity of particles. It is likened to a quantity of things like in our everyday life.

A mole is like a dozen, gross or score.

A dozen is 12 units of substance.

A gross is 144 units and a score is 24.

  • A mole also is 6.02 x 10²³particles .

A mole is the amount of of a substance mass or volume that contains Avogadro's number of particles i.e 6.02 x 10²³

  • The particles are protons, neutrons, electrons, atoms, molecules e.t.c
  • These are more specific to chemistry.

The mole is very essential to quantitative chemistry.

learn more:

Number of atoms brainly.com/question/10419836

#learnwithBrainly

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When two carbon atoms are joined by a double bond, how many electron pairs are shared between the two carbons
NikAS [45]

Answer:

Two (2) electron pairs

Explanation:

The sharing of electron pairs by atoms forms a type of bond called COVALENT bond. Atoms that form covalent bonding (share electrons) do so in order to fill their outermost electron shells, hence, gain chemical stability.

However, when two atoms like carbon share TWO PAIRS of electrons with each other, a DOUBLE BOND is formed. An example is the double bond formed in Ethylene (2HC=CH2). A total of four valence electrons (a pair from each carbon) are shared between the two carbon atoms.

6 0
3 years ago
Sample of gas initially occupies 4.25 L at a pressure of 0.850 atm at 23.0°C. What will the volume be if the temperature is chan
Aliun [14]

Answer:  2.34 L

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 0.850 atm

P_2 = final pressure of gas = 1.50 atm

V_1 = initial volume of gas = 4.25 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 23.0^oC=273+23.0=293.0K

T_2 = final temperature of gas = 11.5^oC=273+11.5=284.5K

Now put all the given values in the above equation, we get:

\frac{0.850\times 4.25}{293.0K}=\frac{1.50\times V_2}{284.5}

V_2=2.34L

Thus the final volume will be 2.34 L

3 0
2 years ago
What changes are happening to the particles as it changes state from a solid to a liquid?
Bingel [31]

Answer:

A

Explanation:

as something is heated, it gains kinetic energy

3 0
3 years ago
0.70 g of hydrogen chloride (HCl) is dissolved in water to make 5.0 L of solution. What is the pH of the resulting hydrochloric
Zepler [3.9K]

Answer:

( About ) 2.42 pH

Explanation:

First convert grams to mole of the hydrochloric acid,

HCl ( moles ) = 0.7g * ( 1 mole / 36.5g ),

0.7 / 36.5 = ( About ) 0.0192 moles

Now take the moles as a fraction over the given liters, to determine " M, " the apparent pH

M = 0.0192 mole / 5.0 L,

M = 0.00384M

_________________________________________________

Because HCl is a strong acid and will completely ionized, take a look at the steps below,

[ H+ ] = 0.00384M pH = -log[H+] = - log[0.00384],

- log[0.00384] = - ( - 2.41566... )

Solution = ( About ) 2.42 pH

5 0
3 years ago
Plants are able to produce special chemicals at the right time and place.
emmasim [6.3K]

Answer:

true

Explanation:

5 0
2 years ago
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