1
From the following data calculate the percentage purity of the sample:
2
Morphological criteria were used to calculate the percentage of apoptotic cells.
3
From the data obtained, calculate the percentage of copper (Cu) in the ore.
4
From the standardization data already obtained calculate the percentage of iron (Fe) in the limonite.
5
From the weight of barium sulphate, calculate the percentage of sulphur (S) in the sample.
6
From the corrected volume of the thiocyanate solution required, calculate the percentage of silver in the coin.
7
After color deconvolution, each core was segmented to isolate staining and calculate the percentage of positive cells.
8
From the weight of barium sulphate (BaSO_{4}) obtained, calculate the percentage of sulphur (S) in the sample.
9
From the corrected volume of permanganate solution used, calculate the percentage of iron (Fe) in the limonite.
10
From the weight of the pyrophosphate, calculate the percentage of magnesium oxide (MgO) in the sample of limestone.
11
Deduct the weight of the crucible, and calculate the percentage of chlorine in the sample of sodium chloride taken for analysis.
12
From the corrected volumes of the two standard solutions, and their relations to normal solutions, calculate the percentage of chromium in the ore.
13
From the standardization data already obtained, and the known weight of the sample, calculate the percentage of iron (Fe) in the limonite.
14
From the corrected volume of the iodine solution required to oxidize the antimony, calculate the percentage of antimony (Sb) in the stibnite.
15
Given the following data, calculate the percentage of iron in a sample of crude ferric chloride weighing 1.000 gram.
16
From the weight of ferric oxide (Fe_{2}O_{3}) calculate the percentage of iron (Fe) in the sample (Note 3).
