Quiz 1 Key - Dr. Loza Name Chemistry 121 Fall 2008 Quiz 1...

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Unformatted text preview: Dr. Loza Name Chemistry 121 Fall 2008 Quiz 1 Tuesday 8:30 am September 30, 2008 20 minutes Rec.lnstr. P', f^ t ( 3 t ?NT Carbon c 4 x l O 2 n m t o p m V r t * i l M F 0.06 mL to lrL 8 x 1 0 5 m g t o k g n - ( v t o - t / t n l a iuTr^x \vw{Pr 6E (- e,r IA' w1^ r t l J k D*'t r # n_ eY(6 YOU MUST SHOW ALL WORK TO RECEIVE FULL CREDIT 1. (2 pts) Give the chemical symbol or name for each of the following elements: Br Eilicon Na QgoUNoO S i SoDtutL 2. (2 pts) In an attempt to characterize a substance, a chemist makes the following observations: The substance is a silvery white, lustrous metal. UIISVnC tpl It melts at 6490C and boils at 11050C. Pl,4 t,lstctt- t/+ Label the property as either a physical property or chemical property. 3. (9 pts) Convert the following measurements Ifu ttA D.obtrL F lu tob,wL lASnL U r bvo'.p(- 4. (3 pts) Round the following numbers to three significant figures. Use scientific notation if the answer as rounded is ambiguous. s.Bo46 5,bo o.o7os4 1.asptc"L 3oo.s1 3,ol tr{D 5. (9 pts) Perform the following calculations and express the answer to the correct number of significant figures. 7 . 6 5 + 1 . 0 M + 3 . 0 = l I . 1 ? f l f v 4. (5 pts) Calculate the number of grams of sulfuric acid in 0.500 L of aqueous ::il:i[:::: JH"'J.ytion has a densitv or 1 28 s/mL and is 38'1o/o 7 n {ilo D,sc;oLq y @L x Lz'+ .2 bi,o+#E LJ X17 >'*tat- L g1 A kzitz Mt(-' U rtc t P 811 x (46.3 - 3s.r; = 'l'a| Yff 't b\r:'u%^, x ?i?,'Til+r = z'ttl h*,ft(tL t v lVrD ta,t6q tm U *ct12 0 . 0 2 1 x 7 4 T = t l , 1 l Q I A Dr. Loza Name 3 p L t o m L Chemistry 121 Fall 2008 Quiz 1 Rec.lnstr....
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This note was uploaded on 10/22/2008 for the course CHEM 121 taught by Professor Wyzlouzil during the Spring '07 term at Ohio State.

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Quiz 1 Key - Dr. Loza Name Chemistry 121 Fall 2008 Quiz 1...

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