0.4575 g of saccharine is present in the ten tablets of saccharine dissolved in water.
From the information in the question, the sulfur in saccharin (C7H5NO3S) was completely converted to sulfate ion (SO4^2-). This ion was now reacted with excess barium chloride to form barium sulfate BaSO4. This later reaction occurs as follows;
SO4^2-(aq) + Ba^2+(aq) --------> BaSO4(s)
Number of moles of BaSO4 obtained = 0.5240 g/233 g/mol
= 0.0025 moles
Since the reaction is 1:1, 0.0025 moles of sulfate ions from saccharine reacted.
Molar mass of saccharine = 7(12) + 5(1) + 14 + 3(16) + 32
= 84 + 5 + 14 + 48 + 32 = 183 g/mol
Mass of saccharine in the tablet = 0.0025 moles × 183 g/mol
= 0.4575 g
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B.) it’s volume is what I think the answer is. If not then it’s D
the scientific method allows to find the answers
1) it is not correct to show unmeasured points
2) extend the experiment or graphs without missing points
3) make the graphs without the missing points and analyze the curves
the scientific method is a set of rules and processes to ensure that an investigation is correct and is not influenced by the prejudices of the researcher
1) Science is based on experimental facts, with these facts it performs, tables, graphs, it postulates principles and laws, therefore it is not correct to include values that have not been measured experimentally.
2) In this experiment there are several observations
- Make the graph without these points, which are very few, has 34 experimental points and only 6 missing, this represents a small fraction
% missing =
% missing = 15%
- Extend the study one more month to have more points and that the fraction of missing points decreases
3) If the researcher had presented the graph without the missing points, the sample that he has must already show the trend of the movement of the sun with respect to the days, making curves that fit the data.
In conclusion using the scientific method allows to find the answers
1) it is unethical to show unmeasured points
2) extend the experiment
3) make the graphs without the missing points and analyze the curves
Learn more about the scientific method here:
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Answer:
Explanation:
Comparing to the solution consisting a pH of 5 containing of hydrogen ions, a solution having a pH of 6 consists of of hydrogen ions. A solution having a pH of 7 too will have a pH of .