Answer:
The new volume is 87.5 ml.
Explanation:
We have,
Volume of sample of neon is 175 ml
The pressure changed from 75 kPa to 150 kPa.
We need to find new volume.
It is based on the concept of Boyle's law. Let V₂ is new volume. So,
![P_1V_1=P_2V_2\\\\V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{175\times 75}{150}\\\\V_2=87.5\ ml](https://tex.z-dn.net/?f=P_1V_1%3DP_2V_2%5C%5C%5C%5CV_2%3D%5Cdfrac%7BP_1V_1%7D%7BP_2%7D%5C%5C%5C%5CV_2%3D%5Cdfrac%7B175%5Ctimes%2075%7D%7B150%7D%5C%5C%5C%5CV_2%3D87.5%5C%20ml)
So, new volume is 87.5 ml.
Answer:
d.
Explanation:
liters is a measure of volume, it is an SI accepted metric system unit
Answer : The solubility of this compound in g/L is
.
Solution : Given,
![K_{sp}=2.42\times 10^{-11}](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D2.42%5Ctimes%2010%5E%7B-11%7D)
Molar mass of
= 114.945g/mole
The balanced equilibrium reaction is,
![MnCO_3\rightleftharpoons Mn^{2+}+CO^{2-}_3](https://tex.z-dn.net/?f=MnCO_3%5Crightleftharpoons%20Mn%5E%7B2%2B%7D%2BCO%5E%7B2-%7D_3)
At equilibrium s s
The expression for solubility constant is,
![K_{sp}=[Mn^{2+}][CO^{2-}_3]](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D%5BMn%5E%7B2%2B%7D%5D%5BCO%5E%7B2-%7D_3%5D)
Now put the given values in this expression, we get
![2.42\times 10^{-11}=(s)(s)\\2.42\times 10^{-11}=s^2\\s=0.4919\times 10^{-5}=4.919\times 10^{-6}moles/L](https://tex.z-dn.net/?f=2.42%5Ctimes%2010%5E%7B-11%7D%3D%28s%29%28s%29%5C%5C2.42%5Ctimes%2010%5E%7B-11%7D%3Ds%5E2%5C%5Cs%3D0.4919%5Ctimes%2010%5E%7B-5%7D%3D4.919%5Ctimes%2010%5E%7B-6%7Dmoles%2FL)
The value of 's' is the molar concentration of manganese ion and carbonate ion.
Now we have to calculate the solubility in terms of g/L multiplying by the Molar mass of the given compound.
![s=4.919\times 10^{-6}moles/L\times 114.945g/mole=565.414\times 10^{-6}g/L](https://tex.z-dn.net/?f=s%3D4.919%5Ctimes%2010%5E%7B-6%7Dmoles%2FL%5Ctimes%20114.945g%2Fmole%3D565.414%5Ctimes%2010%5E%7B-6%7Dg%2FL)
Therefore, the solubility of this compound in g/L is
.
Answer:
D
Explanation:
It is higher in the air, so it will fall faster then the other apples.