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grandymaker [24]
3 years ago
11

What is 98 grams of calcium

Chemistry
1 answer:
dusya [7]3 years ago
5 0

Answer:

0.024951344877489  

Explanation:

hopes this helps

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Which term is used to describe the variety of inheritable traits in a species? (4 points) a Ecosystem diversity b Genetic divers
Artemon [7]

The answer is B, Genetic diversity because it is when they combine to form a new organism they both contribute their hereditary factors.

3 0
4 years ago
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A buffered solution containing dissolved aniline, C6H5NH2, and aniline hydrochloride, C6H5NH3Cl, has a pH of 5.57 . A. Determine
vlada-n [284]

Answer:

[C₆H₅NH₃⁺] = 0.0399 M

Explanation:

This excersise can be easily solved by the Henderson Hasselbach equation

C₆H₅NH₃Cl → C₆H₅NH₃⁺  + Cl⁻

pOH = pKb + log (salt/base)

As we have value of pH, we need to determine the pOH

14 - pH = pOH

pOH = 8.43  (14 - 5.57)

Now we replace data:

pOH = pKb + log ( C₆H₅NH₃⁺/  C₆H₅NH₂ )

8.43 = 9.13 + log (  C₆H₅NH₃⁺ / 0.2 )

-0.7 = log (  C₆H₅NH₃⁺ / 0.2 )

10⁻⁰'⁷ = C₆H₅NH₃⁺ / 0.2

0.19952 = C₆H₅NH₃⁺ / 0.2

C₆H₅NH₃⁺ = 0.19952 . 0.2  = 0.0399 M

5 0
3 years ago
Please fill out the chart
Norma-Jean [14]
This should help hopefully

8 0
3 years ago
Which of the following is true about oxidation-reduction reactions?
zloy xaker [14]

Answer:

the last one probably

Explanation:

6 0
3 years ago
Which option can be classified as a pure substance
Lera25 [3.4K]

Answer:

B. compound

Explanation:

A pure substance can be an element, which consists of only one type of atom and cannot be broken down by a chemical change, or a compound, which consists of two or more types of atoms.

3 0
3 years ago
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