Answer:
D. the total mass that element contribute to a molecule
Answer: Now it is proved that the atom consists of particles like electrons, protons, and neutrons.
Explanation: because he did not have the tech we do to understand atoms
Answer:
10) 8540000000000
11) 0.0000000000002101
12) 3051000000
13) 0.00000000000000000000594
14) 82700000000000
15) 0.0000000000000000000827
16) 2511000000000000
17) 0.000000000000000482
18) 32100000
19) 28800000
In its elemental form, Iodine is a diatomic molecule in the gas phase. In the periodic table, Iodine is just right beside Xenon which is a stable element because it has no extra electrons. Thus, to conform to stability, Iodine must have to gain one more electron. That's why in its ionic form, its formula is I⁻. The reaction would be
I₂ → 2 I⁻
To achieve the Law of Definite Proportions from Dalton's Atomic Theory, we must balance the reaction. So in every neutral Iodine atom, 2 Iodide ions are formed.
Answer:
Explanation:
Here we have to use stoichiometry.
First of all, we have to calculate the mass of 100% of yield:
1.7 g ------- 98%
X -------- 100%
X = 1.73 g (approximately)
Second, we have to calculate the mass of N2 that is necessary to react to produce the mass of 1.73g of NH3. To do that, we have to use the Molar mass of N2 and NH3 and don't forget the stoichiometric relationship between them.
Molar Mass N2 : 14x2 = 28 g/mol
Molar Mass NH3: 14 + 3 = 17 g/mol
28g (N2) ------- 17x2 (NH3)
X ------------ 1.73 g
X = 1.42 g (approximately)
