Answer:
1.08 grams of nitrogen
Explanation:
Thermally ammonium perchlorate dissociate as shown in figure.
Thus as per equation two moles of ammonium perchlorate will give four moles of water, two moles of oxygen, one mole of chlorine and one mole of nitrogen,
The molar mass of ammonium perchlorate = 117.5g/mol
Two moles of ammonium perchlorate = 2X 117.5 = 234 g
The molar mass of nitrogen = 28g
thus 234 grams of ammonium perchlorate will give 28 grams of nitrogen
Hence 9 grams of ammonium perchlorate will give 1.08 grams of nitrogen
Answer:
1
Explanation:
there is only one sulphur (S) atoms in the formula for sodium sulphate
Answer:
1. 
2. 
Explanation:
An ion is formed when an atom that is said to be neutral gains or losses electrons.
It is thought that a negative ion (anion) is produced as it gains electrons and a positive ion (cation) is formed when it loses an electron.
Atomic number is the total number of protons and electrons in a neutral atom.
From the information
Protons = 14
electron = 18
Net Charge = no of proton - no of electron
= 14 - 18 = -4
Mass number = 14 + 15 = 29
Thus, the chemical symbol =
For ion with 27 proton, 32 neutrons and 25 electrons
Net charge = 27 - 25 = +2
Mass number = 27 + 32 = 59
Thus, the chemical symbol =
Answer:
Dipole moment of H₂O: 2.26 Debye
Bond angle in H₂S: 89.7°
Explanation:
The total dipole moment(μr) for H₂O can be calculated by the sum of the dipole moments of each bond of O-H. Because the dipole moment is a vector, the sum of these vectors can be calculated by the cosine law.
μr² = (μO-H)² + (μO-H)² + 2*(μO-H)*(μO-H)*cos(104.5°)
μr² = 1.85² + 1.85² + 2*1.85*1.85*cos(104.5°)
μr² = 3.4225 + 3.4225 + 6.845*(-0.2504)
μr² = 5.13115
μr = √5.13115
μr = 2.26 Debye.
For H₂S:
0.95² = 0.67² + 0.67² + 2*0.67*0.67*cosθ
0.9025 = 0.4489 + 0.4489 + 0.8978cosθ
0.8978cosθ = 0.0047
cosθ = 0.00523
θ = arcos0.00523
θ = 89.7°
