The oxidation state of nitrogen in NaNO2 is +3. This figure is calculated by balancing the charges in the molecule to zero, with sodium assigned +1 and oxygen assigned -2 as their oxidation states.
The oxidation state of an element in a compound refers to the hypothetical charge that an atom would have if all bonds to atoms of different elements were 100% ionic. For NaNO2, the sodium (Na) has an oxidation state of +1, and the oxygen (O) has an oxidation state of -2 each. The molecule is neutral, with charge of zero. Thus, if we let x represent the oxidation state of nitrogen (N), we set up the equation:
+1 + x + 2(-2) = 0
Solving for x gives us:
x = +1 - 2*(-2) = +3.
So, the oxidation state of nitrogen in NaNO2 is +3.
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2 to 5 nm
5 × 10−21 m to 2 × 10−20 m
2 to 5 cm
The atomic radii is approximately between 5 × 10−11 m to 2 × 10−10 m
= 1.86 °C/m.
Answer : The maximum mass of sucralose is, 7952.8 grams.
Explanation : Given,
Molal-freezing-point-depression constant for water =
Mass of water (solvent) = 2.00 kg
Molar mass of sucralose = 397.64 g/mole
Formula used :
where,
= change in freezing point
= freezing point of solution =
= freezing point of water =
i = Van't Hoff factor = 1 (for sucralose non-electrolyte)
= freezing point constant for water =
m = molality
Now put all the given values in this formula, we get
Therefore, the maximum mass of sucralose is, 7952.8 grams.
The safest method for diluting concentrated sulfuric acid with water is to add acid to water. This way, when spill occurs, the acid is already diluted and less harmful than adding water to acid.