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3 years ago

What is the strongest type of intermolecular force present in nh2ch3?

1 answer:

3 0

Correct Answer: Hydrogen bonding

Reason:
In methyl amine (i.e. CH3NH2) several inter-molecular forces of interaction may be operable. This includes:
1) Dipole-Dipole interaction
2) Dipole-induced dipole intraction
3) van der Waal's interaction
4) Hydrogen bonding

Among all the listed interactions, hydrogen bonding is the strongest. With reference to hydrogen bonding, it exist in system when 'H' atom is bonded to electronegative element like N, O and F.

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How many unpaired electrons are in the c 2 + ion?

sladkih [1.3K]

Atomic number of C is 6. Hence, there are 6 electrons in carbon.

The electronic configuration of carbon is 1s2, 2s2, 2p2

Here, there are 2 unpaired electron. However, C2+ ions have 2 electrons less as compared to C.

Hence, electronic configuration of C 2+ ion is 1s2, 2s2. All the electrons are paired in this system. So there are no unpaired electrons in C 2+ ion.

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4 years ago

How do I find the average atomic mass of the element

lozanna [386]

To find the average atomic mass you must multiply all respective isotopic mass and its fractional abundance together and then add all the products.

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3 years ago

Suppose that 5.14 x 10-3 mol of hydrogen gas occupies a 1,171 mL container at 60°C. What is the pressure (in torr)? (Do not type

Maru [420]

Answer:

Explanation:

Given that:

Temperature = 60 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T₁ = (60 + 273.15) K = 333.15 K

n = 5.14 × 10⁻³ mol

V = 1,171 mL = 1.171 L ( 1 mL = 0.001 L)

Using ideal gas equation as:

$PV=nRT$

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = 62.364 L Torr/ K mol

Applying the equation as:

P × 1.171 L = 5.14 × 10⁻³ mol × 62.364 L Torr/ K mol × 333.15 K

5 0

3 years ago

Much of the earth’s heat is retained in the<br> crust.<br> wind.<br> oceans.<br> mountains.

pishuonlain [190]

Crust. The crust is closest to the core

7 0

3 years ago

Read 2 more answers

Convert 3.01€22 molecules of O²(a) mole of O²) ,volume at S.T.P,no of Oxygen atom. (d) mass

Marat540 [252]

Answer:

a )0.05 moles of O₂

b) 1.1207 dm³

c) 0.3× 10²³ atoms of oxygen

d) 1.6 g

Explanation:

Given data:

Number of molecules of O₂ = 3.01 × 10²² molecules

Number of moles of O₂ = ?

Volume of oxygen at ATP = ?

Number of oxygen atoms = ?

Mass of oxygen = ?

Solution:

The given problem will solve by using Avogadro number.

"It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance". The number 6.022 × 10²³ is called Avogadro number.

Moles of oxygen:

1 mole = 6.022 × 10²³ molecules

3.01 × 10²² molecules × 1 mol / 6.022 × 10²³ molecules

0.05 moles of O₂

Number of atoms of oxygen:

1 mole = 6.022 × 10²³ atoms

0.05 mol × 6.022 × 10²³ atoms /1 mol

0.3× 10²³ atoms of oxygen

Volume of oxygen:

1 mole of oxygen at STP occupy 22.414 dm³

0.05 mol × 22.414 dm³ / 1mol

1.1207 dm³

Mass of oxygen:

Mass = number of moles × molar mass

Mass = 0.05 mol × 32 g/mol

Mass = 1.6 g

8 0

3 years ago