Use a CAPITAL letter to mart your choice in the line provided _________ The mola

Question

Use a CAPITAL letter to mart your choice in the line provided _________ The molarity of a solution that contains 5.85 g ol NaCl in 2.0 L of solution is: 2.93 M 0.050 M 5.0 M 0.29M _____ 500 ml. of a 0.4 M sodium nitrate contains _______ moles of sodium ions and _______ moles of nitrate ions. 0.4; 0.2 0.2; 0.4 0.4; 0.6 0.2;0.2 _______ 500 mL of a 0.4 M calcium nitrite contains ______ moles of calcium ions and ________ moles of nitrite ions. 0.4; 0.2 0.2; 0.4 0.4; 0.6 0.2; 0.2 ______ 10.0 mL of 0.50 M sulphuric acid neutralizes ______ mL 0f 0.50 M ammonium hydroxide solution.5.0 10. 20. 40. ______ Which of the following statements about the equilibrium constant is incorrect? if Keq > 1 the reaction favors product formation. If Keq > 1 the reaction does not favor product formation. If Keq = 1the reaction is at equilibrium. If Keq

Explanation / Answer

2. Number of moles of sodium nitrate(NaNO3) is , n = Molarity x volume in L

= 0.4 M x 500 mL x 10-3 L/mL

= 0.2 moles

NaNO3 ---> Na+ + NO3-

1 mole of NaNO3 contains 1mole of Na+ and 1 mole of NO3-

0.2 mole of NaNO3 contains 0.2 mole of Na+ ang 0.2 mole of NO3-

---------------------------------------------

3.Number of moles of calcium nitrate(Ca(NO3)2) is , n = Molarity x volume in L

= 0.4 M x 500 mL x 10-3 L/mL

= 0.2 moles

Ca(NO3)2 ---> Ca2+ + 2NO3-

1 mole of Ca(NO3)2 contains 1mole of Ca2+ and 2 mole of NO3-

0.2 mole of NaNO3 contains 0.2 mole of Ca2+and 2x0.2=0.4 mole of NO3-

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

---

---

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