admin

December 21, 2019

Concentration & Moles Of Solutions.

Concentration & Moles Of Solutions. Just a coupe of uni level chem questions! If you have any issues especially in the second one, read the uploaded document to get an idea. Question 1 – iodine solution standardisation: a) Calculate the mean (average) volume of the titre values you have chosen. […]
December 21, 2019

General Chemistry

General Chemistry 1. A 5.00 g sample of a brownie with nuts is burned in a bomb calorimeter containing 2025 g of water. The temperature of the water increases from 23.50C to 33.47C. How much heat, in joules, did the brownie release when it burned? (Cwater = 4.184 J/gC) A) […]
December 21, 2019

Gases

Gases Identification of Gases Hands-On Labs, Inc. Version 42-0189-00-02 Review the safety materials and wear goggles when working with chemicals. Read the entire exercise before you begin. Take time to organize the materials you will need and set aside a safe work space in which to complete the exercise. Experiment […]
December 21, 2019

Chemistry for solution

Chemistry for solution Molecules attract each other, an the force of attraction increases rapidly as the intermolecular distance decreases. In a liquid, the molecules are very close to one another and are constantly moving and colliding. When a liquid evaporates, molecules in the liquid must overcome these intermolecular attractive forces […]