The reaction to form NH3 is : N2 + 3H2-> 2NH3 12,33g NH3 is 12,33/17,03=0,3 =0,724 moles of NH3 moles NH3. So you need 1,5*0,724 = 1,086 moles H2 1,086*2,016 = 2,189 g of H2 is needed ro form 12,33 g NH3
cyanoacrylate
When cyanoacrylate polymerizes, the cyanoacrylate sticks together on an atomic level, and it becomes solid. Super Glue solidifies in all the microscopic crevices of an object that it moved into when it was a liquid, and it can form chemical bonds with any anions in the object.
Answer:
1/2 ( the two answers given are not FRACTIONS)
Explanation:
Moles of CH3OH = 128 gm / 32 gm / mole = 4 moles
Moles of water 72 gm / 18 gm /mole = 4
Mole fraction of CH3OH = 4 / ( 4+4) = 4/8 = 1/2
1 - a, 2-b, 3-d, 4 - e
<u>Explanation:</u>
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- Separated by 6M HCl
Silver and aluminum ions can be separated using the acid, 6M HCl.
- Separated by H₂S
Copper and Calcium ions can be separated by the reagent hydrogen sulfide, H₂S.
- Separated by (NH₄)₂HPO₄ in NH₃
Magnesium and Potassium ions can be separated by the reagent Ammonium hydrogen phosphate in ammonia.
- cannot be separated
Nickel and Cobalt ion cannot be separated by the reagents given at all.
Answer is (4) - 4.
The atomic number of Germanium (Ge) is 32 and it is placed in 14th group of periodic table. In the neutral atom, 32 electrons are present. The electron configuration of Ge is [Ar] 3d¹⁰ 4s² 4p².
Valence electrons are the electrons which are in outer shell of the atom. There are 4 electrons in outer shell of Ge atom at ground state.