Cations of which of the following categories will give soluble basic oxides? Select one or more: a. very strongly acidic cations b. moderately acidic cations c. nonacidic cations d. feebly acidic cations

A substance that is very acidic may have a pH of 1 or 2. This means that the acidic substance:

3. What is an amphiprotic substance? A. Amphiprotic substances can act only as a base. B. Amphiprotic substances can act only as a acid. C. Amphiprotic substances can act both as an acid and as a base depending on the circumstances. D. Amphiprotic substances cannot act both as an acid and as a base depending on the circumstances. 4. Which of the following scientist defined acids as compounds that can increase the concentration of H in a solution? B. Bronsted C. Lewis D. Lowry A. Arrhenius 5. In the reaction: HCI+H₂0 H3O+ Ct, which of the following is the acid? A. HCI B. H₂O C. H30 D. CH 6. In the reaction: HCI+H₂O A. HCI HO + Ch, which of the following is the base? B. H₂O C. H₂O D. CH 7. In the reaction: HCI+H₂0 A. HCI H3O+ Ct, which of the following is the conjugate acid? C. H3O* B. H₂O D. CH 8. In the reaction: HCI+H₂O = H₂O + Ch, which of the following is the conjugate base? A. HCI 8. H₂O C. H3O+ D. CH 9. In the reaction: HBr + NH3 = NH + Br A. HBr D. Br- NH + Br 10. In the…

26. What is the nature of samples that should NOTbe placed inside the drying-oven?A. Potential OxidantB. Potential ReductantC. AcidsD. Bases27. In measuring the volume of a liquid which apparatus will give you the most precise measurement up to two decimals places of empirical data?A. Volumetric Flask B. Graduated CylinderC. Burette D. Pipette28. In an experiment that aims to determine the acid strength of a sample by back titration, what is the indication that the endpoint has been reached?A. The burette volume is set to zeroB. The resulting solution changes colorC. The resulting solution gains a lingering dominant pink colorD. The Burette needs to be refilled by the titrant base29. After heating the sample in a drying oven for 45 minutes, the samples in a crucible should be placed into another apparatus to allow slow cooling to avoid weighing errors, what do we call thisapparatus?A. Drying panB. CentrifugeC. Analytical BalanceD. Desiccator30. Describe how you would prepare a 800-mL…

Give the Summary of Factors Determining Acid Strength ?

Increasing atomic size for the central atom affects acidity by A. making binary acids stronger and ternary acids weaker B. making both binary and ternary acids weaker C. making both binary and ternary acids stronger

A student is given a concentrated solution that is supposed to contain vinegar, a weak acid. Which of the following experimental tests would best support the claim that the solution is a weak acid rather than a strong acid?

A solution has a pH of 1. This is considered a highly acidic solution and a solution that has a pH of 14. This is considered a highly basic solution. Explain

The salt NaCl which 100% dissociates is  a. Basic  b. Neutral  c. Not enough information  d. Acidic

What volume of concentrated HCl (37.2% HCl m/m) contains 125 g HCl? The density of concentrated HCl is 1.19 g/mL.