Calculate the number of molecules

2.62x10^-6g of water, H2O

The vapor pressure of pure water at 25 °C is 23.8 torr. Determine the vapor pressure (torr) of water at 25 °C above a solution prepared by dissolving 35 g of urea (a nonvolatile, non-electrolyte, molar mass = 60.0 g/mol) in 75 g of water.

What type of compound is CH3-O-CH2-CH2-CH3?

Osmosis When does it happen? Were does it happen? How does it happen? Why does it happen?

What is the percent composition of compound that has a total mass of 63.9 g that contains 51.0 g Cu and 12.9 g O?

Cody uses a can opener to open a can of soup. The can opener can be referred to as what? wedge lever simple machine complex machine

Convert 4.5 hours to seconds

Gasoline catches on fire is it flammability?

Enzymes are proteins that speed up chemical reactions in the body how do they work A. they increase the surface area of reactants B. they increase the concentration of reactants C. they decrease the concentration of products D. They act as reactants

Atomic number for bromine

A reaction with ΔH = - 13 kJ/mol and ΔS = - 22 J/K·mol, at 2°C, the reaction is: A) spontaneous B) nonspontaneous C) at equilibrium D) impossible to determine reactivity E) none of the above