Answer:
Here's what I get
Explanation:
It means that the heat comes directly at you without relying on any material to conduct it.
For example, you feel the heat from a campfire even if the wind is blowing crosswise to you and the fire.
Why do some scientists prefer to express concentrations of water contaminants in the units ppm and ppb rather than molarity?
1 answer:
Explanation:
These molarity units are used to express very small solute concentrations. Molarity cannot be used to express small amount of solute dissolved in solvents.
parts per million ppm is a dimensionless quantity that represents the part of a whole number in units of
parts per billion ppb represents the part of a whole in units of
These quantities are useful in determining very small amount of solute like gold concentration in stream sediments.
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Answer:
Explanation:
BrCl₃ is an interhalogen compound with a hybridization of sp³d. The approximate bond angles can be predicted from the structure (attached below). Although, the lewis structure might be predicted to be trigonal bipyramidal from the structure, it is however a T-shaped geometry because of it's two lone pairs.
Also, from the structure attached, it can be predicted that the approximate bond angles about the central atom is 120° (360 ÷ 3) since each of the three chlorine atoms is equally spaced about the central atom.
This is an incomplete question, here is a complete question.
Consider the following equilibrium at 100°C.
Concentration at equilibrium:
If a system has a reaction quotient of 2.13 × 10⁻¹⁵ at 100°c, what will happen to the concentrations of COBr₂, Co and Br₂ as the reaction proceeds to equilibrium?
Answer : The concentrations of Co and Br₂ decreases and the concentrations of COBr₂ increases.
Explanation :
Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.
The given balanced chemical reaction is,
The expression for reaction quotient will be :
In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.
Now put all the given values in this expression, we get
The given equilibrium constant value is,
Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.
There are 3 conditions:
When that means product > reactant. So, the reaction is reactant favored.
When that means reactant > product. So, the reaction is product favored.
When that means product = reactant. So, the reaction is in equilibrium.
From the above we conclude that, the that means product < reactant. So, the reaction is product favored that means reaction must shift to the product (right) to be in equilibrium.
Hence, the concentrations of Co and Br₂ decreases and the concentrations of COBr₂ increases.