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andreyandreev [35.5K]
3 years ago
14

How many molecules are in one mole of a compound?

Chemistry
1 answer:
valentina_108 [34]3 years ago
3 0

Answer:6.022 x 10^23 molecules

Explanation: Since one mole of any chemical compound always contains 6.022 x 10^23 molecules, you can calculate the number of molecules of any substance if you know its mass and its chemical formula.

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Two categories of compounds are
crimeas [40]

Answer is: (3) ionic and molecular.

Ionic compounds are made of ions held together with ionic bonds.

Ionic bond forms when a cation transfers its extra electron to an anion who needs it.  

For example compound magnesium chloride (MgCl₂) has ionic bond (the electrostatic attraction between oppositely charged ions).  

Magnesium (metal) transfers two electrons (became positive cation) to chlorine (became negative anion).  

Molecular compounds are made up of molecules whose atoms are connected with covalent bonds.

Covalent bond is bond between nonmetals.  

For example, molecule carbon monoxide CO has covalent bond.

Carbon (C) and oxygen (O) are nonmetals.  

Carbon atom and oxygen atom are connected by a triple bond (six shared electrons in three bonding molecular orbitals) that is formed of two covalent bonds and one dative covalent bond.  

4 0
2 years ago
Read 2 more answers
Predict how many electrons will Li (lithium) most likely be gained or lost
Effectus [21]

Answer:

Lithium will lose about 2 electrons

Making it a cation

4 0
3 years ago
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Find the pressure of a gas if the volume is 2.00 L, the temperature is 310 Kelvin and
kipiarov [429]

Answer:

25.42 atm

Explanation:

Data Given:

Volume of a gas ( V )= 2.00 L

temperature of a gas ( T ) =  310 K

number of moles (n) = 2​ mol

Pressure of a gas ( P ) = to be find

Solution:

Formula to be used

              PV= nRT

Rearrange the above formula

              P = nRT / V . . . . . . . . . . (1)

Where R is ideal gas constant

R = 0.08205 L atm mol⁻¹ K⁻¹

Put values in equation 1

                 P = nRT / V

                  P = 2 mol x 0.08205 L atm mol⁻¹ K⁻¹ x 310 k / 2 L

                  P = 50.84 L atm / 2 L

                  P = 25.42 atm

P ressure of gas (P) will be = 25.42 atm

7 0
3 years ago
How can a mixture of salt water be separated into salt and water
kkurt [141]

Answer: by boiling the water to have it evaporate in to water vaper

Explanation:

4 0
3 years ago
Given a 0.5 M stock solution of aqueous NaCl, how much of the stock solution would you need to make a 50 mL sample of 0.25 M aqu
MrRissso [65]

Answer:

25 ml of stock

Explanation:

Molarity x Volume of Concentrated Stock = Molarity x Volume of  Diluted Stock

=> Mc x Vc = Md x Vd => (0.5M)(x) = (0.25M)(50 ml)

=> x = Vc = (0.25M x 50 ml) / (0.50M) = 25 ml of stock

7 0
3 years ago
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