Answer:
a=13
Step-by-step explanation:
-90=-6a-12
-6a=-78
a=13
Your answers are:
1: 14
2: 66
3: 4
4: 1/16 or 0.0625
5: 17
6: 1
Hope this helps!
Answer:
Step-by-step explanation:
Answer:
pH can be different from 7 ( second statement is false)
Step-by-step explanation:
since
pH=pKa + log [A-]/[HA]
at half of the equivalence point
[HA]= [A-] (third statement is true)
and therefore
pH = pKa (first statement is true)
since pH = pKa , pH can be different from 7 ( second statement is false)
Answer:
0.07 Locate and underline the hundredths place (6) then look at the digit to the right (9):
0.069
Step 2: In this case, the digit to the right (9) is 5 or above. So, we add 1 to the hundredths place (6). The digit(s) after the (6) are replaced by zeros (or dropped)