9.04354 * 10^2
The “*” identifies as a multiplication sign. Hope this helps
Answer:
Answer B is correct. Paying off your credit card bill will reduce the amount of debt you have and improve your credit score. Closing old credit cards only works if they are unused. As savings accounts are not included in a credit report, opening a new savings account will not have an effect, either negative or positive, on your credit score. Using up your credit limit will have the negative effect of lowering your credit score.
Explanation:
umm maybe this help you
Answer:
pH = 4.09
Explanation:
molarity of oxalic acid in the solution
= 0.1 x 25 / (25 + 35)
= 0.0417 M
molarity of NaOH in the solution
= 0.1 x 35 / (25 +35)
= 0.0583 M
H2C2O4 + NaOH -------------------> NaHC2O4 + H2O
0.0417 0.0583 0 0
0 0.0166 0.0417
now second acid -base titration
NaHC2O4 + NaOH -------------------> Na2C2O4 + H2O
0.0417 0.0166 0 0
0.0251 0 0.0166 ---
now
pH = pKa2 + log [Na2C2O4 / NaHC2O4]
pH = 4.27 + log (0.0166 / 0.0251)
pH = 4.09
