Blog

If the concentration of Mg 2+ in solution is 3.0 × 10 -3 M, what is its concentration expressed in meq/L?

What is the volume occupied by one mole of helium at 0°C and 1 atm pressure?

What is the [OH−] of a solution that has a pH = 10.95?

The isotope decays to by emitting radiation. What type of radiation is emitted?

When a sample of aqueous hydrochloric acid was neutralized with aqueous sodium hydroxide in a calorimeter, the temperature of 100.0 g of water surrounding the reaction increased from 25.0°C to 31.5°C. If the specific heat of water is 1.00 cal/(g•°C), calculate the quantity of energy in calories involved in this neutralization reaction.

Which of the following measures of radioactivity takes into account the relative biological effect (RBE) of the radiation involved?

Two molecules of ethane experience what type of attractive forces?

Draw the Lewis structures of F 2, O 2 and N 2. Which statement is true?

What property of liquids explains the formation of spherical water droplets on green leaves?

A reaction will be spontaneous at all temperatures under which conditions?