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Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

Molar mass NH3 = 14+3 = 17g/mol 4.25g = 4.25/17 = 0.25 mol NH3 1mol = 6.022*10^23 molecules 0.25 mol = 0.25*6.022*10^23 Number of molecules = 1.51*10^23 molecules NH3
  • 3 answers

. . 7 years, 6 months ago

Helix or allen

Nishita Tomar 7 years, 7 months ago

Ofcourse the stream is science

Rohan Saini 7 years, 7 months ago

Stream
  • 1 answers

Abhinav Kumar Jha 7 years, 7 months ago

Compounds do not show properties of their constituent substances.
  • 5 answers

Aman Kumar 7 years, 7 months ago

Therfore, total no.of electron =5

Aman Kumar 7 years, 7 months ago

Listen , it does'nt required any solving method. We know, l=2 that means, m = -2,-1,0,+1,+2 Given that , m= +2 i.e electron will be placed in (+2 )subshell. Here, S= +1/2 (which shows that electron is unpaired.) Therefore, we put electron to each subshell then we get , 5 electron. i.e. -2=1 electron (+1/2) -1=1 electron (+1/2) 0=1 electron (+1/2) +1=1 electron(+1/2) +2=1 electron(+1/2) So, m= +2 , s=+1/2 given, Total electron in it is 1 . Hope u understand.

Rohan Saini 7 years, 7 months ago

But how to solve it

Navneet Singh 7 years, 7 months ago

5

Aman Kumar 7 years, 7 months ago

No. Of electron will be 5.
  • 1 answers

Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

given in 9th class refresher..
  • 1 answers

Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

A diagonal relationship is said to exist between certain pairs of diagonally adjacent elements in the second and third periods of the periodic table.
  • 1 answers

Anushka Gautam 7 years, 7 months ago

Question is not correct maybe
  • 1 answers

Aman Kumar 7 years, 7 months ago

30 g of H2so4 present in 100 g of solvent. ( mass of solvt.=100-30) Molality = wt. of solute ×1000/molecular wt. Of solute × wt. of solvent. = 30 ×1000/98 × 70 =1500/343 M=4.37... 2 nd part, No.of moles of H2so4= 30/98=0.30 No.of moles of Water= 100/18=5.55 Therefore, Mole fraction= 0.30/0.30+5.55 =0.30/5.85 =0.051.... Ans.
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Shivani Jha? 7 years, 7 months ago

Thanks

Shreya Singh 7 years, 7 months ago

The partial or complete polar separation of the positive or negative electric charges in a nuclear, atomic, molecular,or chemical system.
  • 1 answers

Aman Kumar 7 years, 7 months ago

Lyman series is the ground state energy level which is below the balmer series and balmer series are visible,that is why lyman are ultraviolet. . All the paschen, brackett and p -fund energy levels are above the balmer series . Therefore, they are Infrared .
  • 3 answers

Sarika Kamboj 7 years, 7 months ago

Sorry ,she

Sarika Kamboj 7 years, 7 months ago

He is asking about the diff. Compounds of Sulphur not it's E.C

Tripti Sharma 7 years, 7 months ago

As 's' has only 1 orbital and we know that 1 orbital can hold a maximum of 2 electrons in it.
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Tripti Sharma 7 years, 7 months ago

1.25 litre answer is coming

Tripti Sharma 7 years, 7 months ago

Use the formula M1 V1 = M2 V2
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Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

According to Gay- Lussac's law, the pressure of an ideal gas is directly proportional to its temperature.
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Aman Kumar 7 years, 7 months ago

We have , 2.03 moles of acetic acid in 1000 g of solvent. Mass of solution= 1000×1.017 =1017. (Mass= density ×vol.) Mass of solvent =1017-2.03×60 =895.2 Molality= 2.03×1000/60×895.2 = 0.037..
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Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

then na, f and last cl

Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

li+<Na+<F- <cl-.
  • 3 answers

Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

ya this is better.

Aman Kumar 7 years, 7 months ago

In a simple language, In case of sulphur, there is a large distance btw two atoms and its p -orbitals can't overlaps and form single bond instead of double bond. That is why ,it is in the form of S8 not S2.

Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

Sulfur exists in many allotropic forms. S8 the cyclic or ring structure with chemical bonds among the atoms. It is best known as well as most stable allotrope at room temperature and normal atmosphere. It reduces only in presence of strong acids. It is also known as ortho rhombiicsulfur. Sulfur exists as 4 isotopes and they contain sulfur of different oxidation states.
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Aman Kumar 7 years, 7 months ago

Yes , they can conduct electricity bcoz in a molten or liquid state of nitrate, electrons are free to move and can conduct electricity.

Ďãřşháñăã Yadav???✊ 7 years, 7 months ago

yes they conduct electricity as in nitrate ions are free flowing

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