Answer:
<h2>.I can help you.....</h2>
Explanation:
<h2>am good at </h2>
moles
bonding
balancing equations
and set ups
 
        
             
        
        
        
Sorry, but where are the ‘items’?
 
        
             
        
        
        
Answer:
The smallest unit of a compound is a molecule, which is made up of atoms held together by bonds.
 
        
                    
             
        
        
        
An oxygen gas is a diatomic molecule which means that each molecule is composed of 2 atoms. Its symbol is O2. 
Each oxygen atom has a molar mass of 16 g/mol. The molar mass of oxygen gas is calculated below,
                         molar mass = 2 x (16 g/mol) = 32 g/mol
To determine the number of moles in 52.5 grams of oxygen, divide the given mass by the calculated molar mass.
 
                                 n = 52.5 grams / (32 gram/ mol)
                                     n = 1.64 moles
Thus, there are 1.64 moles of oxygen gas. 
        
             
        
        
        
Answer:
<u>The new pressure is 1.0533 atm</u>
<u></u>
Explanation:
According  to<u> Boyle's Law :</u> The Pressure of fixed amount of gas is inversely proportional to Volume at constant temperature.
PV = Constant 
P1V1 = P2V2
 .....(1)
.....(1)
P1 = 3.16 atm
Accprding to question ,
 V1 = V 
V2 = 3 V
Insert the value of V1 , V2 and P1 in the equation(1)


V and V cancel each other


