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Andrej [43]
2 years ago
8

Gaseous butano (CH,(CH),CH) will react with gaseous oxygen (0) to produce gaseous carbon dioxide (CO2) and goseous woter (11,0).

suppose
20.9 g of butane is mixed with 54, 9 of oxypen. Calculate the minimum mass of butone that could be left over by the chemical reaction. Be sure your answer
has the correct number of significant digits.
Chemistry
1 answer:
slega [8]2 years ago
5 0

Answer:

Firstly, We have to convert it in the Miles formula...

No. of moles = Mass given/Molar Mass

So, the final answer be come<em> </em>

<h3><em><u> </u></em><em><u>Ans</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>5</u></em><em><u>0</u></em><em><u>.</u></em><em><u>8</u></em><em><u> </u></em><em><u>gm</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>there</u></em><em><u> </u></em><em><u>same</u></em><em><u> </u></em><em><u>%</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>5</u></em><em><u>0</u></em><em><u>.</u></em><em><u>8</u></em><em><u>%</u></em><em><u> </u></em><em><u>butane</u></em><em><u> </u></em><em><u>in</u></em><em><u> </u></em><em><u>react</u></em><em><u>ion</u></em><em><u> </u></em></h3>
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Aluminum metal reacts with dilute sulfuric acid to produce aluminum sulfate and hydrogen gas. what mass of aluminum will react w
SOVA2 [1]
Aluminium reacts with dilute sulfuric acid based on the following reaction:
<span>2Al + 3H2SO4 ..............> Al2 (SO4)3 + 3H2

From the periodic table:
mass of aluminium = 27 grams
mass of hydrogen = 1 gram
mass of oxygen = 16 grams
mass of sulfur = 32 grams

Therefore:
molar mass of aluminium = 27 grams
molar mass of sulfuric acid = 2(1) + 32 + 4(16) = 98 grams

From the balanced chemical equation:
2 moles of aluminium react with 3 moles of dilute sulfuric acid.
This means that 34 grams of Al react with 294 grams of the acid

To get the amount  of aluminium that reacts with </span><span>5.890 g of sulfuric acid, we will do cross multiplication as follows:
</span>amount of Al = (<span>5.890 x 34) / 294 = 0.6811 grams</span>
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3 years ago
How many years old are you if you have lived 1 billion seconds 31 years round this answer to 3 sig figs
stich3 [128]

Answer:

age = 63.2 years

Explanation:

Given data

Number of years = 31

number of seconds = 1 billion

Age = ?

Solution

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minutes = 1000000000 / 60

minutes = 16666666.667

Now convert minutes to hours

hours = 16666666.667 / 60

hours = 277777.778

Now convert hours to days

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Now convert months to years

years = 385.803 / 12

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Now add these years with given years

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age = 63.2 years

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