The label on a bottle of vinegar indicates that it is 3.5% acetic acid (ch3cooh). if the density of the solution is 1.90 g/ml, what is the molarity of the solution?

[CH₃COOH] = 0.61 M

Explanation:

3.5% acetic acid indicates that 3.5mL are contained in 100 mL of solution.

So we need acetic acid, density to solve this.

1.05 g/mL

Acetic acid density = acetic acid mass / acetic acid volume

1.05 g/mL = acetic acid mass / 3.5 mL

Acetic acid mass = 1.05 g/mL .  3.5mL = 3.675 grams

Let's convert this mass in moles ( mass / molar mass)

3.675 g / 60 g/m = 0.061 moles

As this moles, are contained in 100 mL of solution, molarity is (mol /L)

100 mL = 0.1L

Molarity (mol/L) = 0.061 m/ 0.1L = 0.61 M

- 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

58750.08068 is the answer i think