Answer:
102g of crystals
Explanation:
When the Cr(NO₃)₃⋅9H₂O is dissolved in water at 15°C, the maximum mass that water will dissolve in the equilibrium is 208 g per 100g of water. When you heat the water, this mass will increases.
In this problem, at 35°C the water dissolves 310g in 100g of water, as in the equilibrium at 15°C the maximum mass is 208g, the mass of crystals that will form is:
310g - 208g = <em>102g of crystals</em>
<em>-Crystals are the Cr(NO₃)₃⋅9H₂O that is not dissolved-.</em>
I hope it helps!
Ga₂O₃ + 2NaOH + 3H₂O = 2Na[Ga(OH)₄]
[Ga(OH)]⁻ + 3e⁻ = Ga + 4OH⁻
n(Ga)=It/(zF)
I=0.200 A
t=40.0 min=2400 s
z=3
F=96485.33 Kl/mol
n(Ga)=0.200*2400/(3*96485.33)=0.00166 =1.66*10⁻³ mol
Answer:
እርስዎ ፊት ላላ ውስጥ ጡት ነዎት
እርስዎ ፊት ላላ ውስጥ ጡት ነዎት
እርስዎ ፊት ላላ ውስጥ ጡትExplanation:
Answer:
The answer to your question is:
Explanation:
Compound Cation Anion Number of electrons
LiCl Li⁺¹ Cl⁻¹ one
NaF Na⁺¹ F⁻¹ one
CaO Ca⁺² O⁻² two
BaS Ba⁺² S⁻² two
NaBr Na⁺¹ Br⁻¹ one
