\t'h5 rtP**+
Sor&in*th*4,
13. Magnesium metal reacts with hydrochloric acid to form aqueous magnesium chloride and hydrogen gas. When 3.65 g Mg is added to 50.0 mL of 3.00 M HCl, what is the theoretical yield of Hz in grams? (3pt work; 1pt answer)
Mg(s)
+
i.Wg
2 HCI(aq)
--r
MgClz(aq)
+
Hz(g)
''*i
tAl 0.246 d
18I0.302 s [c]0.123 s [D]0.151 s
14. Which one of the following basic solutions
50.0 mL of 1.0 M
Ut
not neutralize 25.0 mL of a 1 .0 M sulfuric acid solution? (1pt answer;
$rson A.) 5D ,.Lr1 l r"o[ l00D
lDl 25.0 mL of 1.0 M NaOH
61.
lfto
0rtll
rnL
L,\LenL*L,o u-vrbi!^ tr,tt/lL = . :') l??,yt"\'!'y D,bg ro',1 D[.]- louo aL w r -^|ffi=
I
,.'l
Iro"l
llrgt
DH-
D.oix.l o!l^ h.ol lrOtl =
I
ln".-t
ott-
tr,*l pn*t
30,DDE,*,t otl-
v.\tg*LnlfPfl x #* t= b.D(s "-r 06lu *ni rffi.tto;s1ffJtl'dltir ffi';s\r'ffid-,'l necessro to rqaqt exactty with 7.4 s of ca(oH) z? (tptanswer; 2pt work) gL b$l rr *,p\ rphp 1,* n Cr{rlt) 7 ---14-"rL "L }i@ -4 It RnO mt /, *'icr, *,ol [ur1' v,t l lloo? lAl800 mL
lmi@ vry,r,ritt
hbl4r
[B]250 mL lCl400 mL [D]200 mL
nofl- | tnll'Y
16. For the reaction of NaBr with Clz gas to form NaCl and Brz, the,appropriate half;pactions are (ox = oxidation and re = \ reduction): \ *i
(2pt)
;t
ox: {fi 0z + 29 2e- -+ zLl*i ZCY; +Brt2+ Zr; Br + 2r -+ B*; 2Na+ + 2r -+2Na: 17.Forthe redox reaction
0ll.
lll.
O
V.
,tr+ 2r -+ zct*
Cl *r Cl-+ eCl" --+ ZCl- + 2s tJ. --r Fern + eFe2* + e- -+FE*
tAl lland V
TiBil ardlv')
'irfiz'oV-
[DJllland lV
re:
rei re. re:
g, o
zi"'. *6tr
-q
l. -t
",
2Br -+ Br" * 2eClr+ 29- -+2ClZCY
+Clr+2,
2C?
+Qz+Zr
(, 0. + b-
+r *\l-?-, which of
-zi'!t
-tt,bl- 0d-1ed-1.f
the following are the conect half+eactions? (2pt)
LV â‚Ź4,__r l.H'+ 6cl+ iLP
b?!
LLI- -z
,
Co"tr
-7 clz, I
v I e-
k-
b7L F-t6