Which substance would have hydrogen bonding as one of its intermolecular forces

Question

Which substance would have hydrogen bonding as one of its intermolecular forces of attraction? The K_a for a weak acid HA is 1.0 times 10^6. What is the hydronium ion concentration in a 0.010 M HA solution? (A) 1.0 times l0^-6 M (B) 1.0 times 10^3 M (C) 1.0 times 10^-4 M (D) 0.01 M A 50.0 g sample of an unknown substance absorbed 1, 64 kJ of energy as it changed from a temperature of 36 degree C to 98 degree C. What is the specific heal of the unknown substance in J/(g degree C)? (A) 0.53 (B) 0.76 (C) 1.3 (D) 1.9

Explanation / Answer

Ans 58. A) HCONH2

Hydrogen bonds are weak bonds developed between hydrogen and an electronegative atom .

Methanamide or HCONH2 has intermolecular hydrogen bonds present in between adjacent molecules.

The bond exist between oxygen of one molecule and hydrogen of the other molecule , C=O --- H-N.

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