Can you guys help me out..
HOW MANY GRAMS OF CALCIUM CHLORIDE ARE NEEDED TO PREPARE 72 GRAMS OF SILVER CHLORIDE ACORDING TO THE FOLLOWING EUATION?
CaCl2(aq) + 2AgNO3(aq) Ca(NO3)2 (aq) + 2AgCl (s)
27 g
28g
29g
30g
none of the above
HOW MANY ml OF WATER MUST BE ADDED TO 65ml OF A 5.5 m SOLUTION OF NaOH IN ORDER TO PREPARE A 1.2-M NaOH SOLUTION
230ml
235ml
229 ml
1L
NONE OF THE ABOVE
IN THE REACTION:
N2 + 2O2 2 NO2
WHAT VOLUME OF NO2 IS PRODUCED FROM 7g OF NITROGEN GAS AT 27 DEGREES CELCIUS AND 0.9 atm?
13.7 L
13.7 ml
1.37 L
1.37 ml
137 L
WHAT IS THE MOLE FRACTION OF ETHYL ALCOHOL, C2H5OH, AND WATER, RESPECTIVELY, IN A SOLUTION MADE BY DISSOLVING 9.2g OF ALCOHOL IN 19g OF WATER. (MW H20 =18, MW C2H5OH=46)?
0.167, 0.833
0.833, 0.167
0.133, 0.877
0.67, 0.33
NONE OF THE ABOVE
AT 90 DEGREES CELCIUS, BENZENE HAS A VAPOR PRESSURE OF 1022 Torr, AND TOLUENE HAS A VAPOR PRESSURE OF 406 Torr. GIVEN THIS INFORMATION, WHAT IS THE COMPOSITION OF THE BENZENE-TOLUENE SOLUTION THAT WILL BOIL AT 1 atm PRESSURE AND 90 DEGREES CELCIUS, ASSUMING THAT THE SOLUTION IS IDEAL?
THE MOLE FRACTION OF BENZENE IS 0.574
THE MOLE FRACTION OF TOLUENE IS 0.574
THE MOLE FRACTION OF BENZENE IS 0.426
THE MOLE FRACTION OF TOLUENE IS 0.326
MORE THAN ONE OF THE ABOVE
WHAT IS THE MAXIMUM NUMBER OF ELECTRONS THAT CAN BE PRESENT IN AN ATOM WITH A PRINCIPAL QUANTUM NUMBER OF 5 (NOTE: THE FORMULA IS: 2N^2)?
100
50
25
20
10
WHAT IS THE NORMALITY OF A 2.0M SOLUTION OF PHOSPHORIC ACID, H3PO4, FOR AN ACID-BASE TITRATION?
0.67
2
3
6
5
HOW MANY GRAMS OF CALCIUM CHLORIDE ARE NEEDED TO PREPARE 72 GRAMS OF SILVER CHLORIDE ACORDING TO THE FOLLOWING EUATION?
CaCl2(aq) + 2AgNO3(aq) Ca(NO3)2 (aq) + 2AgCl (s)
27 g
28g
29g
30g
none of the above
HOW MANY ml OF WATER MUST BE ADDED TO 65ml OF A 5.5 m SOLUTION OF NaOH IN ORDER TO PREPARE A 1.2-M NaOH SOLUTION
230ml
235ml
229 ml
1L
NONE OF THE ABOVE
IN THE REACTION:
N2 + 2O2 2 NO2
WHAT VOLUME OF NO2 IS PRODUCED FROM 7g OF NITROGEN GAS AT 27 DEGREES CELCIUS AND 0.9 atm?
13.7 L
13.7 ml
1.37 L
1.37 ml
137 L
WHAT IS THE MOLE FRACTION OF ETHYL ALCOHOL, C2H5OH, AND WATER, RESPECTIVELY, IN A SOLUTION MADE BY DISSOLVING 9.2g OF ALCOHOL IN 19g OF WATER. (MW H20 =18, MW C2H5OH=46)?
0.167, 0.833
0.833, 0.167
0.133, 0.877
0.67, 0.33
NONE OF THE ABOVE
AT 90 DEGREES CELCIUS, BENZENE HAS A VAPOR PRESSURE OF 1022 Torr, AND TOLUENE HAS A VAPOR PRESSURE OF 406 Torr. GIVEN THIS INFORMATION, WHAT IS THE COMPOSITION OF THE BENZENE-TOLUENE SOLUTION THAT WILL BOIL AT 1 atm PRESSURE AND 90 DEGREES CELCIUS, ASSUMING THAT THE SOLUTION IS IDEAL?
THE MOLE FRACTION OF BENZENE IS 0.574
THE MOLE FRACTION OF TOLUENE IS 0.574
THE MOLE FRACTION OF BENZENE IS 0.426
THE MOLE FRACTION OF TOLUENE IS 0.326
MORE THAN ONE OF THE ABOVE
WHAT IS THE MAXIMUM NUMBER OF ELECTRONS THAT CAN BE PRESENT IN AN ATOM WITH A PRINCIPAL QUANTUM NUMBER OF 5 (NOTE: THE FORMULA IS: 2N^2)?
100
50
25
20
10
WHAT IS THE NORMALITY OF A 2.0M SOLUTION OF PHOSPHORIC ACID, H3PO4, FOR AN ACID-BASE TITRATION?
0.67
2
3
6
5