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Otrada [13]
3 years ago
9

Acellus How many grams of strontium (Sr, 87.62 g/mol) are in 2.92 moles of strontium?

Chemistry
1 answer:
saul85 [17]3 years ago
5 0

Answer:

There are 255, 85 grams of Strontium in 2,92 moles.

Explanation:

We perform a simple rule of three to calculate the number of grams, knowing that one mole of Sr weights 87, 62 grams:

1 mol Sr---------87, 62 grams

2,92 mol Sr-----x=(2,92 mol Sr x-87, 62 grams)/1 mol Sr= 255,8504 grams

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Which of the following does not represent an aspect of an environmentally<br> sustainable society?
bekas [8.4K]

Answer:A = $90

B = $390

Explanation:

6 0
3 years ago
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Determine the oxidation state of the metal ion in [co(nh3)5br]2+. express your answer as an integer.
Zanzabum
                                           [Co(NH₃)₅Br]²⁺

Ligands and charges on them,

                             5 × NH₃  =  5 × 0  =  0

                             1 × Br⁻¹  =  1 × -1  =  -1

Charge on sphere  =  +2

So, putting values in equation,

                                       Co + (0)₅ - 1  =  +2

                                       Co + 0 - 1  =  +2

                                       Co - 1  =  +2

                                       Co  =  +2 + 1

                                       Co  =  +3

Result:
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7 0
2 years ago
Total distance divided by total elapsed time gives what quantity?
ki77a [65]
<h2>Total distance divided by total elapsed time gives : Average speed </h2>

Explanation:

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It is the distance traveled by body with respect to time .

Its formula is Speed = distance /time

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units : m/sec or Km/hr

Distance

It is total path traveled by body in any direction .

It unit and symbol is : S  and unit = m /Km

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It is the total distance traveled by body with respect to total time taken to travel that given distance .

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A.s = T.D/T.T

unit = m/sec or Km/hr

Instantaneous velocity

It is the distance traveled by body at particular instant of time ,in given direction .

Displacement

It is the shortest path traveled by body in given direction .

6 0
2 years ago
Which reaction is more likely to involve a form of combustion (exothermic)? Explain your reasoning.
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Answer:

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3 0
2 years ago
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Which of the following reactions does the coenzyme biotin catalyze?
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Answer:

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5 0
3 years ago
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