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Veronika [31]
3 years ago
7

- A 300g sample of CaCO3 was heated until 10 L of CO2 was collected

Chemistry
1 answer:
elixir [45]3 years ago
6 0

Answer:

C.12.3%. you need to use pv=nRT (ideal gas law)

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Honeybee venom is a solution that contains formic acid, which gives the venom an approximate ph of 5.0. which substance is more
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Those substances which has pH less than 5 are more acidic than Honeybee Venom. Some of them are listed below along with their pH scale,

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5 0
4 years ago
A hot toluene stream, which has mass flow rate of 8.0 kg/min, is cooled by cooling water in a cocurrent heat exchanger; its temp
Alex Ar [27]

Complete Question  

The complete question is shown on the first question

Answer:

a) The duty of the heat exchanger is given as 6.8658 KJ /sec

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d) the UA value is UA = 145.10

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The explanation is uploaded on the first and second ,third and fourth image

3 0
3 years ago
Why does hydrogen have a -1 oxidation state in the compound NaH?
ruslelena [56]

your answer will be :

B. <u>Na has a lower</u> <u>electronegativity than H</u>

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6 0
3 years ago
Calculates the equivalent mass of calcium chlorate CA (CI03) 2
love history [14]

Answer:

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Explanation:

Given compound:

            Ca(ClO₃)₂

The equivalent mass can be derived by summing the molar masses of each atom

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                            O  = 16

Now solve;

 Molar mass  = 40 + 2(35.5 + 3(16)) = 207g

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3 years ago
The blank solution used to calibrate the spectrophotometer is 10.0 mL of 0.2 M Fe(NO3)3 diluted to 25.0 mL with 0.1 M HNO3. Why
Sliva [168]
<span>FeNCS+ product...............thats how you do it i believe </span>
4 0
3 years ago
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