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Determine Ka of a monohydric acid if the pH=2 and the initial concentration is 0.445 mol/L!

First of all we have to determine how much of the acid is dissociated, which we can do by determining the concentration of Hydrogen ions. We can work that out from the pH. pH=2, which means [H + ]=10 -2 mol/...
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Answered by Petra N. • Chemistry tutor
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What happens to reactivity as you go down group 1 in the periodic table?

As you go down the group, what changes? The number of shells. As you go down the group, what doesn't change? The number of electrons in the outer shell - it is always one. For group 1, they become reactive w...
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Answered by Divya V. • Chemistry tutor
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What is electronegativity?

Simple definition: Electronegativity is the tendency of an atom to attract a bonding air of electrons to itself
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Answered by Adam R. • Chemistry tutor
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What is the definition of Avogadro's constant and when should I use it?

Avogadro's constant is defined as the number of atoms/molecules in one mole of a substance . It's value is approximately 6.023 x 10^23. It is often used in conjunction with the equation "moles = mass (i...
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Answered by Ben K. • Chemistry tutor
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Explain what is meant by the term 'rate of reaction'?

The change in concentration of reactants or products, per unit of time.
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Answered by Laura M. • Chemistry tutor
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