After larry had taken nexium for 4 weeks, the ph in his stomach was raised to 4.52. what is the [h3o+] in his stomach?

The [H3O+] in his stomach is 3,02x10-5 M. See the explanation below, please.

Explanation:

We use the formula:

pH= -log (H30+)

(H30+)= antilog - (pH) =antilog - (4,52) = 3,02e-5 M

Explanation:

Nexium (Generic name: Esomeprazole Magnesium) basically used to treat stomach acid problems, by decreasing amount of acid secretion and Increasing pH needed for body.

So here   in Larry’s stomach = 4.52

From above formula hydronium ion concentration is

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms