Which of the following is a strong base? CH_3OH HCOOH NH_3 B(OH)_3 Ca(OH)_2 Dete

Question

Which of the following is a strong base? CH_3OH HCOOH NH_3 B(OH)_3 Ca(OH)_2 Determine the energy change for the reaction L_i(s) + 1/2 cl_2(g) rightarrow LiCl(s) from the following data: Lattice energy of LiCl = -861 kJ/mol Energy to vaporize Li = 159 kJ/mol Ionization energy of Li = 520 kJ/mol Cl_2 bond energy 240 kJ/mol Electron affinity of Cl: -349 k/mol -411 kJ/mol -528 kJ, mol 311 kJ/mol -861 kJ/mol -291 kJ/mol Which of the following compounds has the largest lattice energy? NaF KCl RbCl BeF_2 NaCl What physical property is used to separate the hydrocarbon components in petroleum (crude oil)? melting point density boiling point molar mass viscosity Which of the solutions shown here will have the lowest vapor pressure? White circles indicate solvent molecules black circles indicate molecules of a nonvolatile solute all are equivalent What is the osmotic pressure of a 0 300 M blood plasma sample at 37.0 degree C? 1.34 atm 9.23 atm 7 34 atm 14.8 atm 7.64 atm

Explanation / Answer

Q43

Strong bases --> will donate OH- readily

so

CH3OH --> this will not donate OH to form CH3-

HCOOH -> this will only donate H+ to form acidic solution

NH3 --> Slightly weak base, since it dissociates just partially

B(OH)3 --> this is actually an acid

Ca(OH)2 --> will donate Ca+2 and 2OH- in solution readily, therefore high pH

choose

Ca(OH)2 as the storngest base

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.