Answer:
4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (l)
This is an oxidation-reduction (redox) reaction:
4 N-III - 20 e- → 4 NII
(oxidation)
10 O0 + 20 e- → 10 O-II
(reduction)
NH3 is a reducing agent, O2 is an oxidizing agent.
Explanation:
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Answer:
protons and neutrons are located in the nucleus.
Absorbance and transmittance are inversely proportional to one another.According to Beer's law a larger amount of light being transmitted through the sample corresponds to a smaller amount of light being absorbed by the sample. <span />
Answer:
The answer to your question is: 0.02
Explanation:
Data
Mass = 5.3 g of CaCl₂
Volume = 2.5 l
Molarity = ?
Formula
Molarity =
Process
1.- Calculate the molecular mass of CaCl₂
Molecular mass = mass of Calcium + mass of chlorine
Molecular mass = 40 + 2(35.5)
= 40 + 71
= 111 g
2.- Calculate the mles of CaCl₂
111 g of CaCl₂ ------------------ 1 mol
5.3 g ------------------- x
x = (5.3 x 1) / 111
x = 0.048 moles
3.- Calculate molarity
Molarity = 0.048 / 2.5
Molarity = 0.02
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