Chemistry Answers

hydrogen peroxide is a powerful exciting agent used in concentrated solution in rocket fuels and in diluted solution is hair bleach. An aqueous solution of 30% (m/m) has a density of 1.11 g/m. calculate the concentration in terms of mole fraction of hydrogen peroxide and molarity

the mass of the gaseous substance formed, if 2,00 g of hydrogen and 35,5 g of chlorine have reacted completely?

the quantity of gaseous substance formed, if 2,5 mol of hydrogen and 2,5 mol of chlorine have reacted completely?

I– +Mno4 to I2 + Mno2

 2NH3 Using the equation above answer the following question given for items 39 to 44 that has 2.7 moles of N_2 and 8.9 moles of H_2 used. The actual yield after the production is 89.43 g. (Note: atomic number N= 14.007, H= 1.008)

what will be the final volume of the weather balloons if the pressure increases at 100 kpa *

For Items 1-3 consider the problem, A weather balloon with a volume of 2000L at a pressure of 96.3 kPa rises to an altitude of 1000m, where the atmospheric pressure is measured to be 60.8kPa. Assuming there is no change in the temperature or the amount of gas, calculate the weather balloon’s final volume

Agent Orange, a defoliant used on a large scale during the Vietnam war, contains about 2 ppm (m/v) of dioxin, a very toxic substance, as an impurity. How many milliliters of Agent Orange would have to be used in order to place 0.01 g of dioxin in the environment?

Correct IUPAC Nomenclature of the following:

2-Methyl-3-butanol

1,4-Cyclopentanediol

3-Ethyl-2-butanol

Each of the containers shown is at the same temperature, and contains the same number of molecules. In which container is the gas densest?

Correct IUPAC Nomenclature of 2,4-Butanediol