How many grams of chlorophyll are needed to generate an osmotic pressure of 1.55 atm when dissolved in 216mL of an ethanol solution at 298K

How is energy Associated with food stored

A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 146 g of solution. The reaction caused the temperature of the solution to rise from 21.00 to 24.70 ∘C.

What are chemical bonds

A student performed the Fractional Crystallization experiment described with the following results: Initial mass of sample mixture: 4.958 g, mass of salicylic acid recovered, 0.586 g; mass of CuSO4•5H2O recovered, 3.12 g.

How many grams are in CO2?

Why does the sky change colors at sunset? 1 because the sun changes colors 2 because the atmosphere reflects colors 3 because long wavelengths are scattered the least 4 because short wavelengths are scattered the least

Consider the reaction N2 (g) + 3 H2 (g) 2 NH3 (g), which is exothermic as written. What would be the effect on the equilibrium position of adding N2 (g) ?

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)

Calculate the number of liters in 3.25 g of ammonia

Adding drops of food coloring to a beaker of water more organized system?