How many liters of water are required to dissolve 1.00 g of barium chromate? express your answer in liters to three significant
figures?
2 answers:
The solubility Barium chromate in grams per liter = 2.78 . 10⁻³ grams/L
359 liters of water are required to dissolve 1.00 g of Barium chromate
<h3>Further explanation </h3>Solubility is the maximum amount of a substance that can dissolve in some solvents. Factors that affect solubility
- 1. Temperature:
- 2. Surface area:
- 3. Solvent type:
- 4. Stirring process:
Ksp is an ion product in equilibrium
Solubility relationships and solubility constants (Ksp) of the AxBa solution can be stated as follows.
AₓBₐ (s) ← ⎯⎯⎯⎯ → x Aᵃ⁺ (aq) + a Bˣ⁻ (aq)
s xs as
Ksp = [Aᵃ⁺] ˣ [Bˣ⁻] ᵃ
Ksp = (xs) ˣ (as) ᵃ
Solubility units in the form of mol / liter or gram / liter
At 25.°C, the molar solubility of Barium chromate BaCrO₄ in water is 1.10. 10⁻⁵M.
to change units to grams / liter, we multiply by molar mass:
M BaCrO₄ = Ba + Cr + 4. Ar O
M BaCrO₄ = 137 + 52 + 4.16
M BaCrO₄ = 253
So the solubility is in grams / liter
= 1.10 . 10⁻⁵ mol / liter x 253 grams / mol
= 278.3 .10⁻⁵ = 2.78 . 10⁻³ grams/L
(3 significant numbers, 2.7 and 8)
If we dissolve 1 gram of Barium chromate into the solution, we need water :
= 1 grams / 2.78 . 10⁻³ grams / liter
= 359 liters
(3 significant numbers, 3.5 and 9)
<h3>Learn more </h3>
the rate of solubility
influencing factors are both solubility and the rate of dissolution
The solubility of a substance
Keywords: solubility, silver chromate, a significant number
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Answer:
Work done = 600 J
Power used = 60 W
Explanation:
Given:
Force acting on the box is,
Displacement of the box is,
Time taken for the work,
Now, we know that, work is said to be done by a force only when there is displacement caused by the force in its direction.
Here, the force acting on the box causes a displacement of 30 m in its direction. So, work done is equal to the product of force and displacement caused.
Therefore, work done on the box is given as:
Therefore, the work done is 600 J.
Now, we know that, power is given as work done per unit time.
So, power used is given as:
Therefore, the power used is 60 W.