Neco 2018 Chemistry Question 1

Practice practical question 1 from the 2018 Neco Chemistry examination. This question covers Atomic Structure .

Neco 2018 Chemistry Practical

Topic: Atomic Structure

Question 1 NECO • 2018 • CHEMISTRY • practical

A mass spectrometer was used to determine the isotopic composition of element X. The data obtained are shown in the table below. Isotope (mass number) | Isotopic mass (u) | Relative abundance (%) ----------------------|-------------------|------------------------ 58 | 57.9353 | 68.0 60 | 59.9338 | 30.5 61 | 60.9310 | 1.5 Using this information, answer the following questions:

( a )

Calculate the experimentally determined average atomic mass of element X.

( b )

The accepted atomic mass of X in the periodic table is 58.9332 u. Calculate the percent error of your experimental value.

( c )

Suggest two possible sources of error that could have contributed to the discrepancy between the experimental and accepted values.

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

This is Neco 2018 Chemistry Question 1. It is one of the practical questions from the 2018 Neco Chemistry examination.

The question covers Atomic Structure .

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows