Answer: a) 
is the limiting reagent
b) 0.27 g of 
will be produced.
Explanation:
To calculate the moles :
According to stoichiometry :
3 moles of require = 2 moles of 
Thus 0.003 moles of will require=
of
Thus is the limiting reagent as it limits the formation of product and is the excess reagent.
b) As 3 moles of give = 2 moles of
Thus 0.003 moles of give = of
Mass of 
Thus 0.27 g of will be produced.
C. Photosynthesis makes food on their own
Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule. Some atoms can be stable with an octet even though their valence shell is the 3n shell, which can hold up to 18 electrons.
Answer:
P₂ = 1.92 atm
Explanation:
According to the boyle's law:
The pressure of given amount of gas at constant temperature and number of moles of gas is inversely proportional to the volume.
P₁V₁= P₂V₂
Given data:
Initial volume = 4.00 L
Initial pressure = 1.20 atm
Final volume = 2500 mL
Final pressure = ?
Solution:
First of all we will convert the volume into litter.
2500 mL × 1L/1000 mL = 2.5 L
P₁V₁ = P₂V₂
P₂ = P₁V₁ /V₂
1.20 atm×4.00 L = P₂ ×2.5 L
P₂ = 1.20 atm×4.00 L/ 2.5 L
P₂ = 4.8 atm. L/ 2.5 L
P₂ = 1.92 atm
