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Calculate the percentage by mass of nitrogen in an ammonia molecule (NH3) . Take the relative atomic masses of hydrogen and nitrogen to be 1 and 14 respectively.

Calculating the mass of 1 molecule of ammonia:

Mass = ( Number of hydrogen atoms x Mass of hydrogen atom) + ( Number of nitrogen atoms x Mass of nitrogen atoms)

Mass = ( 3 x 1 ) + ( 1...

Answered by Nic D. • Chemistry tutor

28579 Views

I don't understand how to calculate initial rates of reaction based on experimental data

The experimental data given in the question will serve as a basis for comparison when answering the question. You must compare the initial rates of reaction given to the concetrations of the rectants. For...

Answered by Elizaveta T. • Chemistry tutor

5812 Views

To what extent do the separation of powers and checks and balances limit government in the USA?

The question asks to assess the effect to which both the separation of power and the checks and balances limit the whole government of the USA, not just its executive branch. Firstly, the separation of po...

Answered by Jakub D. • Government and Politics tutor

9864 Views

How would you prove the formula for the total capacitance of a system consisting of several capacitors linked in series?

The first thing you need to do is to decide what is kept constant within the system. (P.S. Essentially all problems in physics require conservation laws to some extent)
In the case of components in ...

Answered by Vlad-Marius G. • Physics tutor

1978 Views