Questions regarding volume after evaporating and lever equilibrium

AI Thread Summary
The discussion revolves around two main questions related to physics and chemistry. The first question involves calculating the volume of steam produced from an ice cube by determining the number of moles and the molecular mass of ice. The second question pertains to a lever system, where the user successfully solved for the force using the formula m=fd. The user seeks assistance specifically for the calculations related to the ice cube and the conversion to steam. Clarification on the molecular mass of ice and the volume of gas at different temperatures is also requested.
Bublifuk
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Hello.
I am preparing for certain exams and I encountered these question. Can you guys help me to solve these ones?
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The 1st one I tried to apply formula about density (p=m/v), but I guess that I need to solve through that ice cube. That I firstly sort out the number of atoms in ice cube and then I'll convert it into steam? I have no idea how to solve it.

The second one is mostly about lever system. I tried to use the formula (m=fd), but i don't know how to put figures into it to make it stable. Does anyone have an idea?


Thanks a lot!
 
Last edited:
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for those who concerned I solved the second one:
it's=
1000 x 1.5 = 100 x 4.5 + 1.5x
x=700N

I hope somebody will help me with the first one:)
 
What is the molecular mass of ice?
What is the mass of one mole of ice?
How many moles in the cube?
What volume would that many moles of a gas occupy at room temperature and pressure?
What volume would it then occupy at room pressure but 100C?
 
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