Answer:
The amount present is 36g
Explanation:
Here, we are interested in calculating the amount of zinc in the bronze alloy since it is 18% of the total mass
What we do here is to calculate 18% of the total 200g
Mathematically, that would be 18/100 * 200 = 18 * 2 = 36g
Calculate the pOH where [OH⁻]=4.7×10⁻³M:
pOH=-log[OH⁻]
pOH=-log(<span>4.7×10⁻³)
pOH=2.33
Calculate [OH</span>⁻] if the pOH is 1.34:
pOH=-log[OH⁻]
10^(-pOH)=[OH⁻]
[OH⁻]=10^(-pOH)
[OH⁻]=10^(-1.34)
[OH-]=0.0457M or [OH⁻]=4.57×10⁻²M
Calculate pH if the [OH⁻] is 1.74×10⁻²M:
[H⁺]=K(w)/[OH⁻] or pOH=-log[OH⁻]
[H⁺]=(1×10⁻¹⁴)/(1.57×10⁻²) pOH=-log(1.74×10⁻²)
[H⁺]=6.369×10⁻¹³M pOH=1.759
pH=-log[H⁺] pH=14-pOH
pH=-log(6.369×10⁻¹³) pH=14-1.759
pH=12.2 pH=12.2
I hope this helps. Let me know if anything is unclear.
The answer I believe would be A
Answer and Explanation:
(a) MONATOMIC CATION: Monatomic cation are those cation in which only one atom is present
Example :
(b) MONATOMIC ANION : Monatomic anion are those cation in which only one atom is present
Example :
(C) Polyatomic Cation : Polyatomic cations are those cation which contains more than one atom
Example :
(C) Polyatomic Anion : Polyatomic anions are those cation which contains more than one atom
Example :