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Sample theoretical conceptual paradigm of thesis?
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What if a potassium chlorate sample is contaminated with moisture. Would an analysis show the experimental oxygen higher or lower than the theoretical oxygen?
The experimental oxygen would be higher than the theoretical oxygen in a contaminated sample of potassium chlorate. This is because the moisture would contribute to the sample's weight when measured, resulting in a higher oxygen content calculation compared to the theoretical amount based on the chemical formula.
What is the formula to calculate assay?
The formula to calculate assay is: Assay (%) = (Actual quantity of substance / Theoretical quantity of substance) x 100. This formula compares the actual quantity of a substance present in a sample to the theoretical quantity that should be present, expressed as a percentage.
What type of probability uses a knowledge of sample spaces as opposed to experiments to determine the numerical probability that an event will occur?
Theoretical probability.
What happens to experimental probability values when you increase the sample size why this is true?
As the sample size increases, experimental probability values tend to converge towards the theoretical probability. This is due to the Law of Large Numbers, which states that as the number of trials increases, the average of the results obtained will get closer to the expected value. Larger sample sizes reduce the impact of random fluctuations and provide a more accurate representation of the underlying probabilities. Consequently, the experimental results become more reliable and consistent with theoretical predictions.
What is the theoretical percent zinc in a sample of zinc iodide?
The theoretical percent zinc in zinc iodide is 59.92%. This is calculated by dividing the molar mass of zinc by the molar mass of zinc iodide (which includes zinc and iodine) and multiplying by 100.
When is chi-square tests for goodness of fit used?
Chi-Square Goodness-of-fit Test is used when you want to test if the sample observed follows an assumed theoretical distribution.
What is the theoretical limit to the number of factors included in an ANOVA?
The theoretical limit to the number of factors included in an ANOVA is primarily governed by the sample size and the degrees of freedom available. Each additional factor requires additional degrees of freedom for the model, which can lead to overfitting if the sample size is not sufficiently large. Practically, as the number of factors increases, the complexity of the model grows, making it harder to interpret and potentially leading to issues like multicollinearity. Therefore, while there is no strict upper limit, the number of factors should be balanced with the sample size and the research objectives.
Why it is said that number of theoretical plates should be high for a good efficiency?
In liquid chromatography the 'theoretical plates' number is a measure of the resolution between the peaks of different eluting substances. The higher the plate value the greater the separation. This is particular important as the load reaches the maximum the column is designed for.
Would the experimental percent oxygen be higher or lower than the theoretical percent oxygen?
The experimental percent oxygen may be lower than the theoretical percent oxygen due to factors such as experimental error, incomplete reactions, or impurities in the sample. Variability in experimental conditions can influence the accuracy of the results obtained.
What is nominal sample concentration and how is it calculated?
Nominal sample concentration refers to the theoretical or expected concentration of a substance in a sample, typically expressed in units such as molarity (moles per liter) or mass per volume (e.g., grams per liter). It is calculated by dividing the amount of the substance added to the sample (in moles or grams) by the total volume of the solution (in liters or appropriate volume units). This value helps in understanding the intended concentration before any experimental variations or losses occur.
What if a potassium chlorate sample is contaminated with KCL would the experimental percent oxygen be higher or lower than the theoretical percent oxygen?
If a potassium chlorate sample is contaminated with KCl, the experimental percent oxygen would be lower than the theoretical percent oxygen. This is because KCl does not contain oxygen, so the contamination would dilute the amount of oxygen produced during the decomposition of potassium chlorate.
