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Why should the sample size be such that not more than 50ml of titrant is requiered to reach the endpoint?
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Characteristics of a good sample?
1. the sample should be representative thus carefully selected. 2. the sample should be adequate thus significant enough.
Sample A weighed 3 ounces Sample B weighed 814 thousandths of an ounce more than Sample A What decimal should you use to record the weight of Sample B?
.00814
Will margins of error for sample of size 80 be larger or smaller than those for sample size of 40?
They should be smaller for the sample size 80.
What happens to the crtitical value for a chi square test if the size of the sample is increased?
The size of the sample should not affect the critical value.
To cut the maximum likely error in half the sample size should be?
... should be increased by a factor of 4. Note that this implies that the only errors are statistical (random) in nature; increasing the sample size won't improve systematic errors.
Why should the endpoint be taken as the faint pink color of the indicator?
When using an indicator in a titration, the color changes happen when the titrant has reacted with all the substance of interest in the sample. As soon as the titrant isn't reacting with the sample any more, it starts reacting with the indicator, and continuing past the first hint of color will be using too much titrant, and the calculations for the concentration of the sample will be wrong. Phenolphthalein starts out pink, but will turn red as the pH keeps changing as you go further past the endpoint of the titration.
When should back titration be used instead of direct titration?
when we do not know nothing about the other titrant.
When should back titration used instead of back titration?
when we do not know nothing about the other titrant.
How much time should be allowed for the titrant to drain from the buret wall before a reading is made?
10 to 15 seconds
When do you know endpoint of titration?
when the colour of the indicator used is the color it should be in neutral
Should schools be requiered to serve a vegetarian lunch option yes or no?
In my opinion, yes, because then you are catering to more types of lifestyle/dietary restrictions.
A random sample should be taken from?
A random sample should be taken from an entire population.
How does increasing the sample size affect the sample error of the mean?
It should reduce the sample error.
Characteristics of a good sample?
1. the sample should be representative thus carefully selected. 2. the sample should be adequate thus significant enough.
What are the precautions in specific heat capacity experiment?
There are several precautions that should be taken in specific heat capacity experiments: The sample should be of a known, uniform composition. The sample should be of a known, uniform size. The sample should be of a known, uniform shape. The sample should be clean and dry. The sample should be at the same temperature as the calorimeter. The calorimeter should be well insulated. The calorimeter should be of known heat capacity. The surroundings should be at a constant temperature.
How do you ensure less sample bias?
The sample should be selected randomly.
What does a endpoint look like?
An endpoint looks lika a point that looks like a dot. And the dot should look like this. see how it looks like sometimes its so hard to see,but you will get over it sooner or later.Thankyou for reading my answer for you.
