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The molecular weight is found by adding the atomic masses of all of the atoms that form the molecule. Example: sulfuric acid, H2SO4:
H 1.01 x 2 = 2.02
S 32.07 x 1 = 32.07
O 16.00 x 4 = 64.00
98.07, the molecular wt of sulfuric acid
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How do you convert 32 mmol in to grams?
1) Convert to moles. I assume mmol means minimole, so you divide by 1000. 2) Multiply the number of moles by the atomic or molecular weight. The molecular weight is different for different substances; you'll have to look it up or calculate it.
How do you calculate the weight of a solid object?
Find the volume of the sample (Length times width times height) and multipy by the density coefficient.
Why you need sampling distribution?
in order to calculate the mean of the sample's mean and also to calculate the standard deviation of the sample's
How do you calculate mineral contents of the sample?
We would need to know what sample you are referring to in order to answer this question.
What is the molecular weight of ethyl alcohol?
The formula for ethyl alcohol, or ethanol, is C2H6O.See the Related Questions to the left to determine the molecular weight of any compound, such as ethanol.
How do you calculate density from molecular weight?
the given molecular weight is divided by volume
How do you calculate the molecular weight and the uncertainty of the molecular weight of a unknown solute using propagated error?
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How do you calculate ppm from molecular weight?
ppm is parts per million and thus a concentration. It can not be calculated from molecular weight.
How do you calculate number average molecular weight given molecular weight range and fraction?
Molecular weight is just an older term for molar mass. They are the same.
Why do you need a molecular weight ruler alongside your samples during electrophoresis?
A molecular weight ruler uses a sample of fragments of a known size (known as a molecular weight marker) to be placed alongside the experimental and control samples. It helps compare the migration distance of the experimental fragments to the migrating distance of the fragments of a known size that make up the molecular weight marker. Then the scientist can calculate an approx. size of their experimental samples.
How to calculate empirial formula from molecular formula?
Calculate the empirical formula weight. Find the ratio of the molecular weight to the empirical formula weight. (n= molecular weight/ empirical formular weight). Multiply each subscript of the empirical formula by n.
How many moles in NaCHO3?
A mole is a defined number of atoms/molecules of an element/compound. Therefore, the number of moles of NaCHO3 will depend on the mass of NaCHO3 that you have. To calculate the number of moles in a known sample, divide the mass of the sample (in grams) by the molecular weight.
Do you need to know atomic weight to calculate molarity?
Yes, you definitely need to know the molecular weight of a compound to calculate molarity.
What is the formula to calculate assay?
sample area/standard area*standard weight/sample weight*standard purity/100*100
Calculate the amount in moles 16.3gSF6?
So here, you have to divide by the molecular weight. The molecular weight is 146g/mol. 16.3/146 is 0.11164 moles
How do you calculate the molecular weight of KCl?
The atomic weight of potassium is 39,0983 g.The atomic weight of chlorine is 25,45 g.The molecular weight of potassium chloride (K + Cl) is 74,5483 g.
How do you calculate molecular weight of tio2?
Ti = 1 x 47.867 = 47.867 O = 2 x 15.999 = 31.998 -------------------------------- Molecular weight = 79.865g/mol
