2 years ago

What mass of aluminum must react with 100 g of copper (ii) phosphate? (10g)

Chemistry

1 answer:

trasher [3.6K]2 years ago

7 0

It would be 10g or 50g

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The place at which two bones come together is called a

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Joints is where two bones meet.

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Hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer indu

ddd [48]

Answer: The amount of heat released is 56 MJ.

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass of $C_2H_6$ = 12 kg = 12000 g (Conversion factor: 1 kg = 1000 g)

Molar mass of $C_2H_6$ = 30 g/mol

Putting values in above equation, we get:

$\text{Moles of }C_2H_6=\frac{12000g}{30g/mol}=400mol$

The chemical reaction for hydrogenation of ethene follows the equation:

$C_2H_4+H_2\rightarrow C_2H_6$

By Stoichiometry of the reaction:

When 1 mole of ethane releases 140 kJ of heat.

So, 400 moles of ethane will release = $\frac{140}{1}\times 400=56000kJ$ of heat.

Converting this into Mega joules, using the conversion factor:

1 MJ = 1000 kJ

So, $\Rightarrow 56000kJ\times (\frac{1MJ}{1000kJ})=56MJ$

Hence, the amount of heat released is 56 MJ.

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3 years ago

What acid occurs naturally in the body and performs important regulatory functions

gtnhenbr [62]

Answer: carbonic acid

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Why does one cup system keep water cold for longer than the other cup

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bc the cup system is a system that keeps everything cold

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3 years ago

Question 2 What is 3 x 108 written in standard form?

andriy [413]

I think you meant $3.08*10x^{8}$

If you want to do that then you it will be 308 , 000 , 000

or if you meant 3 x 108 then it would literally just be 3 multiplied by 108 = 324

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2 years ago