Question

How many moles of NaOH are present in 14.5 mL of 0.220 M NaOH? moles:

Answer 1

Please don't upload more than one question at a time. That's why I explain only above 2 questions.

10:220 M NaOH Solution 14:5 ml solution is means that melarity-01-.. 0.220 miles per litre solution 1000 ml /1 litre 1 ml salution solution contains contains 0.220 1000 0.220 moles Moles.. .- | 14.5 ml salution contains 0.220 x 14.5 moles 1000 0.00319_mules - similarly, 1000 ml solution contains 0.670 males of KBr. I mL salution contains - 0.670 moles of kBr 1000 | 355 ml solution contains - 0.670 X 355 moles 1000 0.237 85 moles of KBr. :: 335 ml salution of RBr contains 6.23 785 moles of kBr. . Maloon mass of KBr ² 119.002 g/mal. SD_ er = = males x malar mass. 0.23785 moles x 119.002 g mol _3_28-30___KBr- Volume of water: 222_ml water 3.