Of the bases NaOH, H2O, CN-, SO42-, and HPO42-, which is the weakest? (Ka for HCN is 6.2 × 10-10; Ka for HSO4- is 1.2 × 10-2; and Ka3 for H3PO4, is 4.8 × 10-13)
A) CN-
B) HPO42-
C) SO42-
D) NaOH
E) H2O
Correct Answer:
Verified
Q77: A 2.98-g sample of NaOH(s) is added
Q78: The dihydrogenphosphate ion, H2PO4-, has both a
Q79: Calculate the pH of a 0.048 M
Q80: A 0.10-mol sample of a diprotic acid,
Q81: The sodium salt, NaA, of a weak
Q83: Calculate [H+] in a 1.0 M solution
Q84: Calculate the pH of the following aqueous
Q85: What is the [H3O+] of a 0.14
Q86: If the following substance is dissolved in
Q87: Calculate the pH of a 0.21 M
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents