Answer:
B
Explanation:
volume occupied by fixed amount of gas is directly proportional to its absolute temperature.
6.0m(mol/kg) of HCl
125mL H2O = 0.125kg
6mol/kg = n mol/0.125kg, n = 0.75mol
When 0.75mol of HCl reacts, 0.75/2=0.375mol of H2 is produced. H2 = 2g/mol
So, 0.375mol H2 = 0.75g
Answer:
Standardisation is used to determine the concentration of a volumetric solution in order to achieve accurate and reliable titration results
Answer:
Protons have a much larger volume than neutrons.
Explanation:
Protons have a slightly smaller mass than neutrons.
Protons have a positive charge.
Protons and neutrons make up the nucleus.
Freezer and refrigerator--> Too cold for most bacteria to grow (reproduce). Oven --> too hot for bacteria to survive
