Chemistry

| Weight of change before separating anything(Grams)| Weight of sand by and by separating from mixture (Grams)| Weight of salt after evaporated from water (Grams)| metre taken to filtrate the sand from the salt water (Minutes)| epoch taken to evaporate the water(Minutes)| Percentage of sand in the mixture | Percentage of salt in the mixture |
Mixture 1| 15.9 | 1.6| 0.335| 3| 8| 1.6g/15.9g= 10.06%| 0.335g/15.9g = 2.10%|
Mixture 2| 20| 4| 0.246| 6| 6| 4g/20g=20.00%| 0.246g/20g =1.23%|
Mixture 3| 21.7| 4.2| 2.15| 7| 10| 4.2g/21.7g= 19.35%| 2.15g/21.7g =9.90%|

1) Gather all equipment and set everything up.
2) Weigh the evaporating basin, filter makeup, beaker, and the mixture.
3) pelt the mixture through the filter paper and time how want it takes to filter through.
4) After filtering the mixture weigh the filter paper with the sand on it and the beaker with the new mixture, gather your results.
5) Pour the salt-water into the evaporating basin.
6) evaporate the water in the evaporating basin. Record how long it takes to evaporate the water.
7) broadside the weight unit of the basin and subtract the salts weight from it, gather your results.
8) Repeats step 3-7 for the other two mixtures.





A) Define hydrometric epitome
Gravimetric analysis is a technique that allows us to find bring out the composition of a mixture by separating the components and weighing them.
B) Outlined three detailed situations where gravimetric analysis supplies useful info for chemists and other scientists.
Gravimetric analysis is apply to find the percentage of alcohol in wine, companies need to spot this because before they put it on the shelfs for sale they need to know how much alcohol is in it, this information is useful data for scientists. Gravimetric analysis is also used to find out the percentage of pollutants in air, this could be useful for people go houses, scientists can find out if it is a good environment to...If you want to get a full essay, order it on our website: Orderessay



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