Answer: A property closely related to an atom's mass number is its atomic mass. The atomic mass of a single atom is simply its total mass and is typically expressed in atomic mass units or amu. By definition, an atom of carbon with six neutrons, carbon-12, has an atomic mass of 12 amu.
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Answer: Molarity of
anions in the chemist's solution is 0.0104 M
Explanation:
Molarity : It is defined as the number of moles of solute present per liter of the solution.
Formula used :
![Molarity=\frac{n\times 1000}{V_s}](https://tex.z-dn.net/?f=Molarity%3D%5Cfrac%7Bn%5Ctimes%201000%7D%7BV_s%7D)
where,
n= moles of solute
= volume of solution in ml = 100 ml
Now put all the given values in the formula of molarity, we get
![Molarity=\frac{5.2\times 10^{-4}moles\times 1000}{100ml}=5.2\times 10^{-3}mole/L](https://tex.z-dn.net/?f=Molarity%3D%5Cfrac%7B5.2%5Ctimes%2010%5E%7B-4%7Dmoles%5Ctimes%201000%7D%7B100ml%7D%3D5.2%5Ctimes%2010%5E%7B-3%7Dmole%2FL)
Therefore, the molarity of solution will be ![5.2\times 10^{-3}mole/L](https://tex.z-dn.net/?f=5.2%5Ctimes%2010%5E%7B-3%7Dmole%2FL)
![MgCl_2\rightarrow Mg^{2+}+2Cl^-](https://tex.z-dn.net/?f=MgCl_2%5Crightarrow%20Mg%5E%7B2%2B%7D%2B2Cl%5E-)
As 1 mole of
gives 2 moles of ![Cl^-](https://tex.z-dn.net/?f=Cl%5E-)
Thus
moles of
gives =![\frac{2}{1}\times 5.2\times 10^{-3}=0.0104](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B1%7D%5Ctimes%205.2%5Ctimes%2010%5E%7B-3%7D%3D0.0104)
Thus the molarity of
anions in the chemist's solution is 0.0104 M
False, pushing a sofa on a hardwood floor would be easier than on carpet.
Answer:
5 L
Explanation:
Use Charles law and rearrange formula
Change C to K
- Hope that helped! Please let me know if you need further explanation.