Step-by-step explanation:
The answer in the picture above
Answer:
--- Oven Cleaner
--- Water
--- Blood
--- Vinegar
Step-by-step explanation:
The given molar concentration are:[Missing from the question]
Oven Cleaner: [h+] = 
Water: [h+] = 
Blood: [h+] = 
Vinegar: [h+] = 
Required
Determine the pH
pH is calculated using:

So, we have:
Oven Cleaner:

Using a calculator, we have:

Water:

Using a calculator, we have:


Blood:

Using a calculator, we have:


Vinegar:

Using a calculator, we have:


W={a, b, c, d}
n(W) =4
No of subsets =2^n=2^4=16
The subsets are
{a, b};
{a, c};
{a, d};
{b, c};
{b, d};
{c, d};
{a};
{b};
{c};
{d};
{a, b, c};
{a, b, d};
{a, c, d};
{b, c, d},
{a, b, c, d};
{0}
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Multiplication, Division, and addition