Saved Bookmarks
| 1. |
10g lime stone when reacts completely with dilute HCL it produces CO2 gas. If the reaction happens at 27 degree Celsius , 780 mm pressure then calculate the volume of that gas ? [ Ca = 40 , C = 12 , O = 16 ] Please tell... |
|
Answer» Answer: CaCO 3
+2HCl→CaCl 2
+H 2
O+CO 2
100 g 44 g 1 mole 1 mole 22.4 L 22.4 L We know that 1 mole of any gas at 0 o C and 1 atm PRESSURE occupies 22.4 L volume. So, 100 g CaCO 3
forms 22.4 L of CO 2
Hence, 2.5 g CaCO 3
will form = 100 2.5×22.4
= 100 56
L of CO 2
=0.56 L of CO 2
Hence, the correct option is D |
|