Answer:
The answer to your question is below
Explanation:
a)    HCl  0.01 M
       pH = -log [0.01]
       pH = - (-2)
       pH = 2
b)    HCl = 0.001 M
       pH = -log[0.001]
       pH = -(-3)
       pH = 3
c)    HCl = 0.00001 M
        pH = -log[0.00001]
        pH = - (-5)
        pH = 5
d) Distilled water
        pH = 7.0
e) NaOH = 0.00001 M
        pOH = -log [0.00001]
        pOH = -(-5)
        pH = 14 - 5
        pH = 9
f)  NaOH = 0.001 M
       pOH =- log [0.001]
       pOH = 3
       pH = 14 - 3
       pH = 11
g)   NaOH = 0.1 M
        pOH = -log[0.1]
        pOH = 1
        pH = 14 - 1
        pH = 13
 
 
        
             
        
        
        
I think the family of Group 2 metals are most likely to form a 2+ion.
 
        
             
        
        
        
Answer: 0.9375 g
Explanation:
To calculate the number of moles for given molarity, we use the equation:
 .....(1)
     .....(1)
Molarity of  solution = 0.75 M
 solution = 0.75 M
Volume of  solution = 25.0 mL = 0.025 L
 solution = 25.0 mL = 0.025 L
Putting values in equation 1, we get:
 
  
 
  
According to stoichiometry :
2 moles of  require = 1 mole of
 require = 1 mole of  
Thus 0.01875 moles of  will require=
 will require= of
  of  
Mass of  
Thus 0.9375 g of  is required to react with 25.0 ml of 0.75 M HCl
 is required to react with 25.0 ml of 0.75 M HCl
 
        
             
        
        
        
Explanation:
Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere