9.107 Calculate the final concentration of the solution when water is added to prepare each of the following: (9.5) a. 25.0 mL of a 0.200 M NaBr solution is diluted to 50.0 mL b. 15.0 mL of a 12.0% (m/v) K2SO4 solution is diluted to 40.0 mL c. 75.0 mL of a 6.00 M NaOH solution is diluted to 255 mL tion when water is

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وچی NaOH, H2O, haat NaOH, H2O, heat پہلے 0 Na Na HO OH

[References] Use the References to access important values if needed for this question. Expressing amounts of energy in different energy units is necessary to solve many chemistry problems. For practice, complete the following table. The Joule (J) is the SI unit of energy. 1 calorie (cal) = 4.184 J J cal kJ 568 149 0.807 Submit Answer Try Another Version 10 item attempts remaining pt pt pt Previous Ne re to search DELL

Endothermic has a -AH True False

What is the standard heat of formation of C2H4 H2+1/2O2>H2O.   -242kj/mol 2C+3H2+1/2O2>C2H5OH. -273kj/mol C2H4+H20>C2H5OH.    -88kj/mol 2C+2H2>C2H4

2H9O (s) 2Hg (s) + 02 (g) O synthesis O decomposition O hydrocarbon combustion O single replacement O double replacement