<u>1 mole of oxygen.</u>
Answer:
solution given:
according to the above reaction,1 mole of oxygen is required to react with 2 moles of sodium to form sodium peroxide.
Explanation:
A period in the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells
Answer:
Gases can be compressed easily because there is a large amount of space between the individual molecules, which are very active and move around at high speed.
Explanation:
When gas is compressed, the particles are forced much closer together, allowing a huge amount of particles to fit in a small space.
Answer:
13.5 mL of solution.
Explanation:
Given:
the solution is of 2% concentration.
The dosage required is 10mg/kg
The weight of dog is 27 kg
Solution:
The mass of barbiturate required for the 27 kg dog = 27 X 10 mg = 270 mg
As the solution is 2%, so there is 2g of barbiturate is dissolved in 100mL of solution
The mass of barbiturate required = 0.270 g
For 2 g we will need 100mL of solution
For 1 g we will need = 50mL of solution
for 0.270g we will need = 50 X 0.270 mL of solution = 13.5 mL of solution.