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pantera1 [17]
3 years ago
6

Ba ( OH ) 2 Ba(OH)2 is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.400 M Ba ( OH ) 2

0.400 M Ba(OH)2 solution.
Chemistry
1 answer:
Ulleksa [173]3 years ago
4 0

Answer:

[Ba^2+]= 0.400M

[OH-]= 0.800M

Explanation:

Step 1: Data given

Molarity ofBa(OH)2 = 0.400 M

Ba(OH)2 is a strong electrolyte, so 100 % dissociation

Step 2: The equation

Ba(OH)2 → Ba^2+ +  2OH-

In 1 mol Ba(OH)2 we have 1 mol Ba^2+ and 2 moles OH-

Step 3: Calculate the concentration

[Ba^2+]= 1* 0.400 M = 0.400M

[OH-]= 2*0.400 M = 0.800M

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a) The reactants are: P

b) The products are: M and N

Explanation:

The given reaction equation is as follows.

P \rightarrow M + N

Reactants are the species present on the left side on an arrow in a chemical reaction equation.

On the other hand, products are the species which are present on the right side of an arrow in a chemical reaction equation.

Hence, in the given reaction equation P is the reactant. Whereas M and N are the products.

Thus, we can conclude that in the reaction:

a) The reactants are: P

b) The products are: M and N

8 0
3 years ago
How many levels of biological classification are represented in the taxonomic biological name for an organism.
babunello [35]

Answer:

There are two Two level represented in biological name....

Explanation:

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7 0
3 years ago
Calculate molality,molarity and mole fraction of KI if the density of 20%(mass) aqueous KI is 1.202 g/mL
Scorpion4ik [409]
Basis: 1 L of the substance.
               (1.202 g/mL) x (1000 mL) = 1202 g 
                   mass solute = (1202 g) x 0.2 = 240.2 g
                   mass solvent = 1202 g x 0.8 =  961.6 g
                   moles KI = (240.2 g) x (1 mole / 166 g)  = 1.45 moles
                   moles water = (961.6 g) x (1 mole / 18 g) = 53.42 moles
1. Molality = moles solute / kg solvent 
                  = 1.45 moles / 0.9616 kg = 1.5 m
2. Molarity = moles solute / L solution
                  = 1.45 moles / 1 L solution = 1.45 M
3. molar mass = mole solute / total moles
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5 0
4 years ago
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Answer:

a) hydrogen gas and a salt

b)sodium sulphate,water and carbon dioxide.

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3 0
3 years ago
Explain the reaction that would occur in a galvanic cell between solutions of Al 3+and Pb 2+ . Identify the oxidation and reduct
borishaifa [10]

Answer:

Al ==> Al^3+ + 3e

Pb^2+ + 2e ==> Pb

Oxidation is the loss of electrons. Reduction is the gain of electrons. Which half rxn above lost and which gained?

For the potential of the cell, look up the reductions potentials, change the sign of the Al half cell, add in the potential for the Pb and add them.

Explanation:

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3 years ago
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