Questions: Based on molecular structure, arrange the following binary compounds in order of decreasing acid strength. Rank compounds from strongest to weakest. To rank items as equivalent, overlap them. NaH H2S H2Te HI

Based on molecular structure, arrange the following binary compounds in order of decreasing acid strength. Rank compounds from strongest to weakest. To rank items as equivalent, overlap them. NaH H2S H2Te HI
Transcript text: Based on molecular structure, arrange the following binary compounds in order of decreasing acid strength. Rank compounds from strongest to weakest. To rank items as equivalent, overlap them. NaH $\mathrm{H}_{2} \mathrm{~S}$ $\mathrm{H}_{2} \mathrm{Te}$ HI
failed

Solution

failed
failed

Solution Steps

Step 1: Understanding Acid Strength in Binary Compounds

Acid strength in binary compounds is influenced by the bond strength between hydrogen and the other element, as well as the electronegativity of the other element. Generally, for binary acids (HX), the acid strength increases with the size of the halogen or chalcogen atom because the bond strength decreases, making it easier for the hydrogen ion to dissociate.

Step 2: Analyzing the Given Compounds

The compounds given are NaH, \(\mathrm{H}_{2} \mathrm{~S}\), \(\mathrm{H}_{2} \mathrm{Te}\), and HI.

  • NaH: Sodium hydride is not an acid; it is a strong base because it contains the hydride ion (\(\mathrm{H}^-\)).
  • \(\mathrm{H}_{2} \mathrm{~S}\) and \(\mathrm{H}_{2} \mathrm{Te}\): These are hydrides of sulfur and tellurium, respectively. As we move down the group in the periodic table, the size of the atom increases, and the bond strength decreases, making \(\mathrm{H}_{2} \mathrm{Te}\) a stronger acid than \(\mathrm{H}_{2} \mathrm{~S}\).
  • HI: Hydroiodic acid is a strong acid because iodine is large, and the H-I bond is weak, allowing easy dissociation of the hydrogen ion.
Step 3: Ranking the Compounds

Based on the analysis, the order of acid strength from strongest to weakest is:

  1. HI (strongest)
  2. \(\mathrm{H}_{2} \mathrm{Te}\)
  3. \(\mathrm{H}_{2} \mathrm{~S}\)
  4. NaH (weakest, not an acid)

Final Answer

\[ \boxed{\text{HI} > \mathrm{H}_{2} \mathrm{Te} > \mathrm{H}_{2} \mathrm{S} > \text{NaH}} \]

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
The accounts from the Adjusted Trial Balance are listed in alphabetical order. What is the total long-term liabilities? Baker Service Company Adjusted Trial Balance September 30, 2025 Account Title Balance Debit Credit Accounts Payable 9,200 Accounts Receivable 14,300 1,600 Accumulated Depreciation, Equipment Cash 5,300 Common Stock 500 Denrenciation Exnense - Enuinment A. 39,900 B. 19,600 C. 22,100 D. 10,500
failedAnswered
In each of the molecules drawn below one chemical bond is colored red. Decide whether this bond is likely to be polar or not. If the bond is likely to be polar, write down the chemical symbol for the atom which will have more negative charge. Cl-Cl - The highlighted bond is polar and the more negative atom is - The highlighted bond is nonpolar H-Cl - The highlighted bond is polar and the more negative atom is - The highlighted bond is nonpolar I-I - The highlighted bond is polar and the more negative atom is - The highlighted bond is nonpolar
failedAnswered
A nurse is preparing to administer platelets to a client who has thrombocytopenia. Which of the following actions should the nurse take? - Use a transfusion set that has a short tubing and a small filter. - Verify the client's blood type with a second nurse. - Allow platelets to sit at room temperature for 1 hr prior to infusion. - Infuse the platelets over a period of 2 hr.
failedAnswered
The data show the number of hours of television watched per day by a sample of 28 people. Use technology to answer parts (a) and (b) below. 9 2 3 0 8 8 9 7 9 4 2 3 7 1 6 3 2 7 1 0 6 5 0 2 0 6 8 8 a. Find the data set's first, second, and third quartiles. Q1=□ Q2=□ Q3=□ (Type integers or decimals. Do not round.)
failedAnswered
In the diagram of single beam photometer given below, identify the component that is not marked. Sample holder Monochromator Interference filter Absorption filter