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What are Prerequisites for collection of blood sample for serum calcium level estimation?
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∙ 12y ago
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∙ 12y ago
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What is pure sample of calcium?
calcium is an element, so it is the pure substance.. it is a grey/silver. calcium is an element, so it is the pure substance.. it is a grey/silver.
How many moles of calcium are in a sample of 40 g?
.998 moles
Can the calcium concentration of a sample increase over time?
Only by evaporation of the solvent (water?)
How do you find the density of calcium?
Density is mass/volume. If you have a sample of calcium, then you can determine its mass and volume. Then divide the mass by the volume. If you don't have a sample of calcium, then you can look it up. Some periodic tables give the density of each element. Also, if you do a search, you will find a Wikipedia article that will tell you the density of calcium, which is 1.55g/cm3. Please refer to the related link below, which is the Wikipedia article on calcium. Wikipedia has wonderful articles on the elements.
A sample of calcium contains calcium -40 calcium -44 calcium -42 calcium -48 calcium -43 and calcium -46 atoms Explain why these atoms can have different mass numbers bu the must have the same atomic?
They have different masses because the number of neutrons varie. All these are called "isotopes". Each neutron weighs a certain amount, and with more or less neutrons, the mass changes
Does a Quota Sample represent the whole population?
yes because the quota sample include the random sample and when we have over estimation we will use the quota sample
What is pure sample of calcium?
calcium is an element, so it is the pure substance.. it is a grey/silver. calcium is an element, so it is the pure substance.. it is a grey/silver.
Is the standard error of the sample mean assesses the uncertainty or error of estimation?
yes
Why is it good to have a high sample size?
It increases the accuracy of the estimation and reduces the associated error range.
How is sample related to population?
A population is the collection of all of the units of interest to a researcher. A sample is a subset of this collection that the researcher selects that is typically smaller than the population.
What is the 'collection of all possible events'?
Sample Space
The collection of all possible outcomes of an experiment is called?
sample space
What is the Color of normal calcium test in urine sample?
ya mum
How many moles of calcium are in a sample of 40 g?
.998 moles
Can you give me a sentence using the word calcium?
Salt is made up of calcium and chloride. Calcium is a necessary ingredient to a good diet.
How many moles are in 16.5g of calcium?
Calcium, Ca has atomic mass of 40.1Amount of Ca = 16.5/40.1 = 0.411molThere are 0.411 moles of calcium in a 16.5 gram sample.
How does the addition of a constant and multiplication by a constant affect the arithmetic mean?
If you add the same constant to each element of a sample then the mean of this collection of values will be the mean of the original sample plus the constant. If you multiply each element of a sample by a constant then the mean of this collection of values will be the mean of the original sample multiplied by the constant.
