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marishachu [46]
3 years ago
13

13.26 g has significant figures 1. 0 1 2 3 4.

Chemistry
1 answer:
Nostrana [21]3 years ago
8 0

Answer:

13.26 g has 4 significant figures

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A compound is composed of 58.8% c, 9.8% h, and 31.4% o, and the molar mass is 102 g/mol. what is the molecular formula for this
Ivahew [28]

The solution would be like this for this specific problem:

 

<span>Moles of carbon = 58.8 / 12 = 4.9 </span><span>
<span>Moles of hydrogen = 9.8 / 1 = 9.8 </span>
<span>Moles of oxugen = 31.4 / 16 m= 1.96 </span>
<span>Ratio 4.9 / 1.96 = 2.5 9.8 / 1.96 = 5.0 1.96 / 1.96 = 1 </span></span>

Simplest formula = C5H10<span>


</span><span>I hope this helps and if you have any further questions, please don’t hesitate to ask again.</span>
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2 years ago
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A reaction between ethene and oxygen is used to produce epoxyethane. When silver is combined with ethene, the reaction for produ
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A tank contains 9000 L of pure water. Brine that contains 20 g of salt per liter of water is pumped into the tank at a rate of 2
geniusboy [140]

Answer:

20 g/L

Explanation:

To know what happens with the concentration, we must calcute the limit of the function where t → ∞. The limit is the value that the function approach when t intend to a value. So:

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Dividing both for "t"

\lim_{t \to \infty} C(t) =  \lim_{t\to \infty} \frac{\frac{1}{t}20t }{\frac{1}{t}(360 + t) }

\lim_{t \to \infty} \frac{20}{\frac{360}{t} + 1 }

The limit of 1/t when t intend to infity is 0, which is demonstrated in the graph below, so:

\lim_{t\to \infty} 20 = 20

The concentration will approach 20 g/L.

6 0
3 years ago
Describe an experiment to show that there is increase in mass when magnesium is burned in air<br>​
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Answer:

When a mass of magnesium is burned it increases in mass due to the oxygen combining with the molecules. The amount of mass increase is proportional and predictable if you know the mass of the starting magnesium.

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2 years ago
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Answer:

B. touch to transfer

Explanation:

hope this Helps.

8 0
2 years ago
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