Hello There!
When the ice melts, the water level will drop slightly but not much.
REMEMBER Ice expands so when ice melts, it shrinks back to the state of being liquid.
You can use a separating funnel. The person will go the top and the water to the bottom.
Answer : The mass of NaCl required are 14.61 grams
Explanation : Given,
Molar mass of NaCl = 58.44 g/mole
Volume of solution = 500.00 mL
Molarity of NaCl = 0.5 M = 0.5 mole/L
Molarity : It is defined as the number of moles of solute present in 1 liter of solution.
Formula used :
![Molarity=\frac{\text{Mass of NaCl}\times 1000}{\text{Molar mass of NaCl}\times \text{volume of solution in ml}}](https://tex.z-dn.net/?f=Molarity%3D%5Cfrac%7B%5Ctext%7BMass%20of%20NaCl%7D%5Ctimes%201000%7D%7B%5Ctext%7BMolar%20mass%20of%20NaCl%7D%5Ctimes%20%5Ctext%7Bvolume%20of%20solution%20in%20ml%7D%7D)
Now put all the given values in this formula, we get:
![0.5mole/L=\frac{\text{Mass of NaCl}\times 1000}{58.44g/mole\times 500.00ml}](https://tex.z-dn.net/?f=0.5mole%2FL%3D%5Cfrac%7B%5Ctext%7BMass%20of%20NaCl%7D%5Ctimes%201000%7D%7B58.44g%2Fmole%5Ctimes%20500.00ml%7D)
![\text{Mass of NaCl}=14.61g](https://tex.z-dn.net/?f=%5Ctext%7BMass%20of%20NaCl%7D%3D14.61g)
Therefore, the mass of NaCl required are 14.61 grams
Answer: Region 3
Explanation: The temperature and time graph suggests that region 3 is the region in which the substance can co exist in both the phases that is solid phase and liquid phase.
Region 1 explains that the the solid has just started melting and there occurs a break point and then region 2 again explains that the solid is taking more time with temperature to get converted into the liquid and thus region 3 explains the equilibrium between the two phases.
Answer:
8
Explanation:
Since Xe (xenon) is a noble gas, it has 8 valence electrons. It's outer shell is full and it is a stable element and doesn't like to react. Therefore, since the electron dot diagram is about valence electrons, 8 would be your answer.