• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2

# Experiment to find the ratio of Magnesium to Oxygen in Magnesium Oxide.

Extracts from this document...

Introduction

Experiment to find the ratio of Magnesium to Oxygen in Magnesium Oxide Aim The aim of this experiment was to find the ratio between magnesium and oxygen in magnesium oxide. You must find the amount of products and reactants. To do this it is possible to use the following method Method Equipment: * Crucible and crucible lid * 4cm of magnesium(s) strip * Electric balance * Bunsen burner * Tripod * Crucible stand * Pair of tongs Instructions: 1. Select a complete crucible and lid. 2. Clean the crucible and lid to make sure that there will be no other reactants inside the crucible other than what is required. ...read more.

Middle

9. Occasionally, using a pair of tongs, briefly lift the crucible lid to see if the reactants have stopped reacting. This also allows extra oxygen to get into the normally sealed crucible thus allowing the reactants to react fully. 10. Once it appears that the reactants have finished reacting turn off the Bunsen burner and allow the crucible to cool. When the crucible is cool weigh it using the electric balance (the weight should have increased from step five). 11. Repeat steps seven to ten until the final weight remains constant, thus all the reactants have been used up. Calculations Weight in grams Experiment 1 Experiment 2 Crucible and lid 32.21 34.51 Crucible and lid containing magnesium 32.24 34.54 Crucible and lid containing magnesium oxide 32.25 ...read more.

Conclusion

From the results in the tables concerning the second experiment it is possible to see that magnesium oxide has the formula MgO. The correct formula for magnesium oxide is MgO. Therefore an error has occurred in experiment one. Sources of error Possible sources of error include: * The crucible may not have been completely clean therefore there will have been reactants in there that have not been included in the calculations. * The electric balance may not have been working correctly or may have given results that were not precise enough thus making the calculations wrong. * In step nine when the crucible lid was lifted some of the product may have escaped. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Arthur Miller section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related GCSE Arthur Miller essays

1. ## The Crucible - Acts 1, 2, 3, and 4.

If I were to play this role I would do the same as I thought it was very effective. Act 3 (page 88-91) Rachel, Sarah T, Elizabeth & Bethany This scene is set in court, and it starts very dramatically with Proctor grabbing Abigail and pulling her upwards, screaming at her and calling her a "Whore."

2. ## The crucible.

This is shown by his swing of opinion to save himself: "So you did conjure sprits last night" he realises that what he saw would not just go away and that he personally would do worse by not divulging the information.

1. ## The Crucible.

However, as the scene progresses and Elizabeth unwittingly condemns John Proctor and gives aid to Abigail, Elizabeth is viewed as the more powerful of the two, thereby confusing the power relationship between the two and rejecting traditional stereotypes. By Act Four, when John Proctor is about to be hanged, it is Elizabeth who is called upon to save his life.

2. ## The Crucible - summary.

Reverend John Hale of Beverly arrives, a man who prides himself on the ability to ascertain witchcraft. Miller interrupts the play for another historical interlude. Miller gives a history of the Church employing accusations of Satanic alliances against enemies, such as Luther and links this to his contemporary ideologies.

1. ## The formula of magnesium oxide

Empirical formula is the smallest whole number ratio of elements in the compound. Step 10 of the procedure was repeated after the weight had increased because there were still impurities there that had not been removed from the heat. The white particles of magnesium were not allowed to leave the crucible because it would affect the weight of the crucible.

2. ## Essay on 'The Crucible'

The powerful, the righteous, the weak and the jealous. Most of the characters or the main characters rather entered the powerful and jealous categories. Judge Danforth for example, a powerful man with extreme authority, he turns a 'blind eye' to the truth to keep his position and stay in power.

1. ## Analysis of 'The Crucible'

in Proctor's home the previous year, she engaged in an affair with him, which led to her being fired by his wife Elizabeth. Abigail however still desires Proctor, but he wards her off. "Give me a word John, a soft word" (Abigail)

2. ## The Crucible

At the start of Act 1 Arthur Miller introduces John Proctor to have "a sharp and biting way with hypocrites" this is showing us already that Proctor is well respected, and hates people who lie, deceive, betray and sin. Arthur Miller also describes Proctor as "...

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to