Calculate the molarityof the solution when water is added. a. 25.0 mL of 0.200 M

Question

Calculate the molarityof the solution when water is added. a. 25.0 mL of 0.200 M NaBr diluted to 50.0 mL b. 15.0 mL of 1.20 M K2 SO4 diluted to 40.0mL c. 75.0 mL of 6.00 M NaOH diluted to 255 mL Calculate the molarityof the solution when water is added. a. 25.0 mL of 0.200 M NaBr diluted to 50.0 mL b. 15.0 mL of 1.20 M K2 SO4 diluted to 40.0mL c. 75.0 mL of 6.00 M NaOH diluted to 255 mL a. 25.0 mL of 0.200 M NaBr diluted to 50.0 mL b. 15.0 mL of 1.20 M K2 SO4 diluted to 40.0mL c. 75.0 mL of 6.00 M NaOH diluted to 255 mL

Explanation / Answer

M1 *V1 = M2*V2 M2 = M1*V1/V2 a) 0.200 M *(25 mL/50 mL ) = 0.100 M b) 1.20 M *(15 mL/40 mL) = 0.450 M c) 6 M *(75 mL/255 mL) = 1.76 M

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