You measure water in two containers:a 10-mL graduated cylinder with marks at every mL, and a 1-mL pipetmarked at every 0.1 mL. I
f you have some water in each of thecontainers, and add them together, to what decimal place could youmeasure the total?
A. 0.01 mL
B. 0.1 mL
C. 1 mL
D. 10 mL
E. none of these
A. 0.01 mL
B. 0.1 mL
C. 1 mL
D. 10 mL
E. none of these
1 answer:
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First, let's start off by finding the mass of this whole hydrate.
(Note: the unit of measurement for mass will be amu)
Let's find the molecular mass of each element.
Now, let's find the mass of each compound.
We have 6 molecules of H2O, so multiply 18.015 by 6 then add that with the weight of CoCl2.
Now divide 108.09 (mass of all the H2O in the hydrate) by 237.923 (total mass of hydrate).
Turn that into a percentage and you get 45.431%.
Hope this helps! :)
(Note: the unit of measurement for mass will be amu)
Let's find the molecular mass of each element.
Now, let's find the mass of each compound.
We have 6 molecules of H2O, so multiply 18.015 by 6 then add that with the weight of CoCl2.
Now divide 108.09 (mass of all the H2O in the hydrate) by 237.923 (total mass of hydrate).
Turn that into a percentage and you get 45.431%.
Hope this helps! :)