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Author Question: Calculate the concentration (M) of sodium ions in a solution made by diluting 50.0 mL of a 0.874 M ... (Read 86 times)

jrubin

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on: Aug 27, 2018
Calculate the concentration (M) of sodium ions in a solution made by diluting 50.0 mL of a 0.874 M solution of sodium sulfide to a total volume of 250.0 mL.
 
  A) 0.175
  B) 4.37
  C) 0.525
  D) 0.350
  E) 0.874

Question 2

The heat of vaporization of water at 100C is 40.66 kJ/mol. Calculate the quantity of heat that is absorbed/released when 9.00 g of steam condenses to liquid water at 100C.
 
  A) 20.3 kJ of heat are absorbed.
  B) 20.3 kJ of heat are released.
  C) 81.3 kJ of heat are absorbed.
  D) 81.3 kJ of heat are released.
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nital

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Reply #1 on: Aug 27, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jrubin

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Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review

sultana.d

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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