Concentration Terms
Trending Questions
The molarity of 0.006 mole of NaCl in 100ml solution is:
- 0.066
- 0.6
- 0.06
- 0.006
25 ml of 3.0 M HNO3 are mixed with 75 ml of 4.0 M HNO3. If the volumes are additive, the molarity of the final mixture would be:
3.25 M
4.0 M
3.75 M
3.50 M
If 5.85 g of NaCl (molecular weight 58.5) is dissolved in water and the solution is made up to 0.5 litre, the molarity of the solution will be
- 0.4
0.2
0.1
1.0
A mixture has 18 g water and 414 g ethanol. The mole fraction of water in mixture is (assume ideal behaviour of the mixture)
0.1
0.4
0.7
0.9
How much NaOH is required to neutralise 1500 cm3 of 0.1 N HCl?
- 60 g
4 g
- 6 g
40 g
The number of molecules in 4.25 g of ammonia is approximately
0.5X1023
1.5X1023
3.5X1023
2.5X1023
The amount of anhydrous Na2CO3 present in 250 ml of 0.25 M solution is
- 6.625 g
6.225 g
- 66.25 g
6.0 g
If 5.85 gms of NaCl are dissolved in 90 gms of water, the mole fraction of NaCl is
0.2
0.01
0.3
0.0196
K2Cr2O7+KI→Cr3++I2
(Molar mass of K2Cr2O7 is 294 g mol−1)
- 49 g
- 98 g
- 4.9 g
- 9.8 g
20 ml of HCl solution requires 19.85 ml of 0.01 M NaOH solution for complete neutralization. The molarity of HCl solution is
0.0099
0.099
0.99
9.9