Chm 1045 lab Study guides, Class notes & Summaries

1 lb = _______ kg - 0.454 5 steps of creating a Lewis structure - 1. calculate total number of valence electrons available 2. determine which will be the central atom 3. arrange atoms symmetrically around the central atom 4. place bonds/electrons around the atoms until the octet rule is satisfied for each atom, using double or triple bonds if necessary 5. show any charges on the molecule by using brackets and writing the charge in the top right corner outside the brackets acid + base --&...

Exp 2- 25.00 mL of an unknow liquid were measured three times. The mass of each of the 25.00 mL samples were 36.137, 36.241, 36.098 g. Calculate the density of each sample and average value of the density. - 1.) 36.137 g/ 25.00 mL= 1.445 g/mL 2.) 36.241 g/ 25.00 mL= 1.450 g/mL 3.) 36.098 g/ 25.00 mL= 1.444 g/mL Average 1.445+ 1.450 + 1.444= 4.339 4.339/3= 1.446 g/mL Exp 2- Consider a stone column 3.00 ft in diameter and 10.00 ft high. What is its mass in pounds if the density is 3.50 g/...

covalent bonds form based on Ans:the sharing of electrons that provides an octet of electrons for each most energetically stable elements in the periodic table Ans:noble gases noble gases are also referred to as Ans:inert gases octet rule Ans:all atoms should strive to have 8 electrons in their outermost shell to achieve the most energetically stable state valence electrons Ans:electrons found in the highest energy shell of an atom (aka the highest principle quantum number, n, shell...

CHM 1045 Lab Exam 1 ( Answers for each questions with lots of details latest edition | complete solutions