Cobalt (ii) nitrate (co(no3)2) exists as a hydrate with the composition of 37.1% water and 62.9% cobalt nitrate by mass. determine the molecular formula for this hydrate.

Co(NO₃)₂·6H₂O

Explanation:

Assume that you have 100 g of the hydrate.

Then you have 62.9 g Co(NO₃)₂ and 37.1 g H₂O.

1. You will need a chemical equation with masses and molar masses, so let’s gather all the information in one place.

:                                           182.94      18.02

                 Co(NO₃)₂·xH₂O ⟶ Co(NO₃)₂ + xH₂O

Mass/g:                                         62.9          37.1

2. Use the molar masses of each compound to calculate its number of moles.

3. Calculate the molar ratio of the two products.

Divide each number by the smaller number of moles (0.3438 mol).

4. Round off each number to the closest integer.

1 mol of Co(NO₃)₂ combines with 6 mol H₂O, so x = 6.

The formula of the hydrate is Co(NO₃)₂·6H₂O.

when—without warning—something provokes your anger, you may struggle not to succumb to it. since what typically makes you mad is feeling powerless in the face of what seems unfair, your anger is mostly an attempt at a “quick fix” to right the balance. it’s as though you’re raising a fist in protest, proclaiming that you’re not going to capitulate to such injustice.

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be directed toward a person who has intentionally (and needlessly) behaved in a hurtful way toward you; and

be beneficial or advantageous to you (i.e., assist you in achieving a desired goal).

i think you’ll agree that only rarely can you claim that your anger is both warranted and , whether to yourself or the relationship.

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but keep in mind that you must really want to execute these steps, be sufficiently motivated to perform them. which means overcoming more unconscious resistance than you might ever have imagined. because there are many immediate “advantages” of anger that can interfere with your resolve, i’ll suggest a few of them that might interfere with your employing this powerful method to rid yourself of counter-productive anger.

explanation: