Number of moles is mathematically expressed as,
......(1)
Thus, for estimating number of moles, one need to know weight of solute and molecular weight.
Now, if one measure the volume of solid and density of solid is know, then one can employ following formula for estimating weight of solid:
Weight of solid = Volume of solid x Density
On substituting the obtained weight of solid in Eq. 1, one can obtain number of moles of solid.
1.List one extensive and one intensive property of marker ink.
Intensive property is a property that is independent of the amount of sample such as the color of the ink. Extensive property is the opposite which is dependent to the amount such as volume.
2.Define mixture.
Mixture is a system that contains two or more substances which are agitated but not chemically bonded.
3.Is tap water a heterogeneous or homogenous mixture?
Tap water is a homogenoeus mixture because it has uniform properties in every sample you get.
4.Is isopropyl alcohol (rubbing alcohol) a heterogeneous or homogenous mixture?
I think the rubbing alcohol is a homogeneous mixture since it has uniform properties as well.
At room temperature, number of moles of distilled water is 1 x10^-7. Hope it cleared your doubt.
United States of America I think