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NNADVOKAT [17]
3 years ago
11

What volume of 0.500 M nitric acid is needed to titrate 25.0 mL of 0.750 M calcium hydroxide to the endpoint?​

Chemistry
1 answer:
nikdorinn [45]3 years ago
4 0

Answer:

Explanation:

concentration unit relates moles of solute to volume of solution. ... First find the number of moles of KCl in the 25.00 mL of 0.500 M solution: ... 13) What volume of 1.25 M sulfuric acid is needed to dissolve 0.750 g of ... mL of 0.0962 M hydrochloric acid is titrated with a calcium hydroxide solution, and ...

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olchik [2.2K]

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matter

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How can we prevent land pollution?​
Dominik [7]

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7 0
2 years ago
Assume that coal can be represented by the chemical formula C135H96O9NS. If 4.0 tons of coal is burned, what mass of nitrogen is
Schach [20]

Answer:

0.02 tons of NO produced when 4 tons of coal is burned

Explanation:

From the given,

Chemical formula of coal =  C_{134}H_{96}O_{9}NS

Molecular mass of coal = (134\times12)+(9\times1)+(9\times16)+14+32\,=1906.1gm

Let’s calculate the mass of nitrogen in coal

Percentage\,weight\,of\,nitrogen=\frac{Mass\,of\,nitrogen}{Molecular\,mass\,of coal}

Percentage\,weight/,of/,nitrogen=\frac{14}{1906.1}=0.73%

Amount of coal burnt = 4tons

Amount of NO produced by burning 4tons = 4\,tons\,of\,coal\times \frac{0.73tons}{100\,tons\,of\,coal}=0.0292\,tons

This nitrogen is converted into NO by reacting with atmospheric oxygen.

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3 years ago
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How many moles are there in 87.2 g of zinc fluoride?
Sladkaya [172]

Answer:

what I got was 0.8435160945347224 moles

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2 years ago
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