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What is the structural formula of calcium propanoate?

Answer 1

The formula of calcium propanoate is ("CH"_3"CH"_2COO)_2"Ca"#.

The name alone indicates that this is propanoic acid's calcium salt.

The formula of propanoic acid is #"CH"_3"CH"_2"COOH"#, so the propanoate ion is #"CH"_3"CH"_2"COO"^(-).#

Calcium is in Group 2, so calcium ion is #"Ca"^(2+)#.

It takes two propanoate ions to balance the charge of one calcium ion, so the formula of calcium propanoate is #("CH"_3"CH"_2"COO")_2"Ca"#.

Take note of the exception: The metal ion is typically written last in carboxylic acid salts.

#"Ca"("CH"_3"CH"_2"COO")_2# is acceptable, but #("CH"_3"CH"_2"COO")_2"Ca"# is preferred.

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Answer 2

Delilah Anderson

The structural formula of calcium propanoate is Ca(C2H5COO)2.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.