I was wondering...If two reactants have the same mass (eg. 1.0g) and they are present in a 1:2 ratio...is it possible to calculate the mass of the excess reactant..WITHOUT finding the number of mole and so on...

iam having problem with this problem, i know the equation of dieterici, but i cant find an example on how to derive the critical constants, there even in no example in the book too,
any help is welcome

"Starting with the Dieterici equation of state, derive the relation between the critical constants Pc, Vc and Tc and the Dieterici equation parameters"

Oxygen(atomic mass 15.9994 amu) has 3 isotopes with masses 15.9949 amu, 16.9993 amu, and 17.9992 amu. The abundance of the last isotope is .204%. Estimate the abundance of the other two isotopes.

I just need to know how to solve it bcuz im confused! thanks

oil spreads on water to form a fim about 100nm thick. how many square kilometers of ocean will be covered by the slick formed when one barrel of oil is spilled(1 barrel=31.5 gal)?

can u plz show ur work bcuz im not sure how 2 solve this

Truth never hurt harder than the facts at http://www.unified theory.org.uk/

Calculate the molarity and mole fraction of acetone in a 1.77 m solution of acetone (CH3COCH3) in ethanol (C2H5OH). (Density of acetone = 0.788 g/cm3; density of ethanol = 0.789 g/cm3.) Assume that the volumes of acetone and ethanol add.

This is how my teacher explained how to figure the solution:
M = mole solute/ volume of total solution so

1) use moles of acetone to get volume of acetone using the density of acetone
2) kg Ethanol ( EtOH) to volume using the density. Assume if 2.29m than 2.29 moles of acetone in 1 kg of EtOH

I have this problem and I am lost

Engrium sulfate has the formula, En2(SO4)3, while sodium nortonite has the formula Na2NtO3. Based on these names and formulas, what would you expect for the formula of engrium nortonate?

I came up with En2NtO3 Does this sound okay?

What volume, in drops, of concentrated HNO3 is required to react with 0.0191 g of Cu metal? Assume 20 drops per milliliter.

Why must HCl be added to the copper solid after the reaction with zinc dust is completed?

2AgNO3 +CaCl2-->2AgCl + Ca(NO3)2

a)given 1.25 mol AgCl