.

Sunday, December 8, 2013

Chem Help

Practice Test for 6.1-6.3 1. Complete the following grand calculations: a. What is the one thousand of a resolvent containing 25.3 grams of copper (II) chloride dissolved in cxl mL of water? b. How many grams of sodium hydrated oxide be needed to make 2 L of a 0.05 M settlement? 2. A student dissolves 0.350 moles of potassium nitride (K3N) in 0.650 L of water. c. Calculate the molarity of the solvent. d. What is the immersion of potassium ions? e. What is the concentration of nitride ions? f. What is the stab concentration of ions? 3. How many times more acidic is a firmness with a pH of 3 than a solution with a pH of 5? 4. Complete the following calculations and forecast whether the nerve centre is acidic, basic, or neutral: g. What is the pH of a solution with a pOH of 11.4? h. What is the heat content concentration of a solution with a hydroxide concentration of 6 x 10-5? i. What is the hydrogen concentration of a solution with a pOH of 3.7? j. What is the pH of a substance with a hydroxide concentration of 4 x 10-5? k. What is the hydroxide concentration of a substance with a pOH of 8.5? 5. economise the disassociation equation for each of the following: l. sodium convert m.
Ordercustompaper.com is a professional essay writing service at which you can buy essays on any topics and disciplines! All custom essays are written by professional writers!
magnesium hydroxide n. atomic number 20 bromide. 6. specify the Lewis structure for CH3Cl. o. How many valence electrons does this molecule reach? p. What is the consideration of this molecule? q. What is the bond angle? r.! Is the molecule frosty or nonpolar? s. What is the dominant intermolecular force fall in in this molecule? Answers: 1a. 1.34 M; b. 4 grams; 2a. 0.538 M; b. 1.614 M; c. 0.538 M; d. 2.152 M; 3. 100 times; 4a. 2.6, acidic; b. 2 x 10-10 M, basic; c. 5.01 x 10-11 M, basic; d. 9.61, basic; e. 3.2 x 10-9 M, acidic; 5a. Na2SO4 ? 2 Na+ + SO42-; b. Mg(OH)2 ? Mg2+ + 2 OH-; c. CaBr2 ? Ca2+ + 2 Br-; 6a. 14; b. tetrahedral; c. 109.5°; d. polar; e....If you want to get a full essay, alliance it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper

No comments:

Post a Comment