| Question | Answer |
| The formula mass of aluminum oxalate,Al2(C2O4)3, is | 318 amu |
| In 0.332 mol of trimellitic acid, C6H3(COOH)3, there are | 1.80x10^24 carbon atoms |
| which of the following compounds has the highest % of nitrogen by mass | NH4NO2
KNO3
N2F4
HNO3
(NH4)2SO4 |
| Analysis of a compound showed that it contained 14.4% hydrogen atoms and 85.6% carbon atoms by mass. what is the empirical formula | CH
CH2
CH3
C2H3
C2H5 |
| a particular compound contains, by mass, 41.4% carbon,3.47% hydrogen, and 55.1% oxygen. A 0.050-mol sample of this compound weighs 5.80g. The molecular formula of this compound is | CHO
C3H3O
C2H2O2
C4H4O4
C5H5O5 |
| An organic compound that has the empirical formula CHO has a molecular mass of 174amu. Its molecular formula is | C5H5O5
C2H5
C6H6O6
C12H12 |
| A 5.95g sample of AgNO3 is reacted with BaCl2 according to the equation 2AGNO3(aq)+ BaCl2 (aq)--> 2AgCl(s)+Ba(NO3)2(aq) | 32.0%
100%
42.6%
63.9%
53.9% |
| 2KHCO3(s)--> K2CO3(s)+ CO2(g)+H2O(l)
How many moles of potassium carbonate will be produced if 476g of potassium hydrogen carbonate are heated | 4.76
3.44
238
2.38
12.6 |
| C3H8+5O2--> 3CO2+4H2O
how many grams of oxygen are required to burn 4.2g of C3H8 | 3.1g
72g
36g
15g
52g |
| Aqueous solutions of sodium sulfide and copper(II) chloride are mixed together. Which statement is correct | both NaCl and CuS will precipitate from the solution
No precipitate will form
cus will precipitate from the solution
NaCl will precipitate from the solution
No reaction will occur |
| Which of the following is a strong acid in aqueous solution | HCLO2
HCLO-
HI
H2S
HC2H3O2 |
| the oxidation # of carbon in the formate ion,HCOO-, is | -2
-1
0
+1
+2 |
| identify the spectator ion in the following reaction Cu(OH)2(s)+2H^+(aq)+Cl-(aq)-->Cu^2+(aq)+2Cl-(aq)+2H2O(l) | Cu2+ and Cl-
H+ and Cl-
Cu(OH)2
Cl-
Cu2 |
| the net ionic equation for the equation of calcium bromide and sodium phosphate contains which of the following species | Ca2+
PO4^3-
2Ca3
6NaBr
3Ca2+ |
| what products results from the addition of aqueous solutions of Sr(NO3)2(aq) and (NH4)2 S(aq) | SrS(s)and NH4NO3(aq) |
| which of the following is not an Arrhenius base | LiOH
NH3
Ca(OH)2
Sr(OH)2
KOH |
