Chemistry help aqueous solutions - mnogofot.ru

Aqueous solution - Wikipedia, the free encyclopedia

Stock solutions serve as a source for making dilutions. Nicholas Rigg, Getty Images, concept, most laboratories keep stock solutions of common or frequently used solutions of high concentration. These stock solutions are used for dilutions. Step 1:Calculate the number of moles of NaOH needed for 0.5 M NaOH aqueous solution. M m/V0.5 mol/L m 0.100 L)solve for m:m 0.5 mol/L x 0.100 L 0.05 mol NaOH. Problem: Calculate the amount of 1 M NaOH aqueous solution needed to make 100 mL of 0.5 M NaOH aqueous solution. Formula needed:M m/Vwhere M molarity of solution in mol/literm number of moles of soluteV volume of solvent in liters. Step 2:Calculate the volume of 1 M NaOH aqueous solution that gives that gives the number of moles of NaOH from step 1.M m/VVm/MV (0.05 moles NaOH 1 mol/L)V 0.05 L or 50 mL Answer: 50 mL of 1 M NaOH aqueous solution is needed to make 100 mL of 0.5 M NaOH aqueous solution. "I was so overwhelmed by the whole college process, time management for writing essays, and balancing a heavy work load and tons of extracurricular activities. Lisa helped me slow down, breathe, and get organized. Additionally, most all-in-ones boast memory card slots and LCDs on which to preview prints and do light editing, in addition to connectivity options like Ethernet and wireless, with Apple AirPrint and Google Cloud Print features in the upper tiers.

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