Only fe (iron) is in the group b of elements
Answer:
V(NH₃(g)) at STP = 0.8928 Liters ≅ 0.9 Liter (1 sig. fig)
Explanation:
Given 340g NH₃(g) => ?Volume at STP
Convert grams to moles by dividing by formula wt of ammonia
= 340g/17g/mole = 20 moles
1 mole of any gas at STP conditions (0°C, 1atm) occupies 22.41 Liters
∴ 20 moles NH₃(g) => 20moles/22.4Liters/mole
= 0.8928 Liters ≅ 0.9 Liter (1 sig. fig)
Answer:
Ionic solutes consist of oppositely charged ions that are attracted to each other, and
these solutes can be dissolved through ionization.
Explanation:
Ionic solutes consist of aggregate (the same number) of positive and negative charge ions.
Ionization brings about the conversion of neutral atoms to ions. So when ionic solute undergo ionization, it transform them into the respective ions which make up the ionic solute
Answer:
The pH of the solution is 3.0
Explanation:
Considering:
Or,
Given :
For :
Molarity = 0.0030 M
Volume = 100 mL
The conversion of mL to L is shown below:
1 mL = 10⁻³ L
Thus, volume = 100×10⁻³ L
Thus, moles of :
Moles of = 0.0003 moles
Volume added = 200 mL
Total volume = 200 + 100 mL = 300 mL = 0.3 L
Thus,
SInce, it is strong acid. Thus, [H⁺] = 0.001 M
pH is defined as the negative logarithm of the concentration of hydrogen ions.
Thus,
pH = - log [H⁺] = - log 0.001 = 3.0
<u>The pH of the solution is 3.0</u>
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