Saturday, November 23, 2013

Chem Help

Practice Test for 6.1-6.3 1. Complete the following grand calculations: a. What is the chiliad of a resolvent containing 25.3 grams of copper (II) chloride dissolved in one hundred forty mL of water? b. How many grams of sodium hydrated oxide argon 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 dissolving agent. d. What is the immersion of potassium ions? e. What is the concentration of nitride ions? f. What is the insure concentration of ions? 3. How many times more acidic is a result with a pH of 3 than a solution with a pH of 5? 4. Complete the following calculations and reckon 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 total heat 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. indite the disassociation equation for each of the following: l. sodium sulphate 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. mickle the Lewis structure for CH3Cl. o. How many valence electrons does this molecule reach? p. What is the conformity of this molecu le? 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, ordination 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