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- In which situation(s) is it necessary to use a volumetric flask for maximum accuracy? to prepare a 0.150M solution of sodium chloride to measure ~25mL of water to prepare 0.1M HCI from 36-38% HCI a and c all of the above (Please type answer no write by hend)What volume of concentrated ammonia should be used to prepare 200 ml of 0.600 M solution?Purity 28% w/wdensity 0.9 g/mlCalculate the volume in milliliters of 0.362 M KOH necessary to titrate 28.38 mL of 0.279 M diprotic sulfuric acid, H2SO4, to a phenolphthalein end-point. Report the answer to a precision of 2 decimal places.
- 1) How much total sea salt is present in a 95 Kg person? (a normal person (70 kg BW) has approximately 43L body fluid). 2) Please express the normal blood glucose level into molarity (mM). 3) Commercial HCl is 36%. Please convert it into molarity. 4) Find out the Volume (dm3) of product at STP when 0.28 M, 200 mL NaOH (aq.) reacts with 250 mL 85% H3PO4 (Sp. G.-1.067). 5) The above reaction has the product Ammonia, which when dissolved in 300 mL water makes an alkaline solution. Find its molarity (M). 6) Please re-calculate the child dose as per the BW of the baby. (Adult dose-750 mg and the BW of the baby is 50 lb (British pound) (1 lb=0.453 Kg).How much grams can CaSO4 be dissolved in 250mL of H20 with the KSP of CaSO4 being 2.4 x 10^-5What is the molarity of phosphoruc acid in a solution labelled 20.0% phosphoric acid (H3PO4) by weight with a density = 1.12g/ml?
- What is the Qsp of a solution mixture Al(OH)3 formed from 10 mL 1.00M C6H5NH2 and 15 mL 0.10M Al(NO3)3?What is the [OH−] of a solution which is 0.1770 M in C5H5NH2 and 0.1897 M in C5H5NH3Br? C5H5NH2(aq) + H2O(l) → C5H5NH3+(aq) + OH−(aq) Kb = 1.8000e-9Consider a solution initially containing 0.40 mol fluoride anion (F-) and 0.30 mol of hydrogen fluoride (HF, Ka = 7.1 x 10-4 ). How many moles of the HF are present after addition of 0.20 mol of HCl to this solution?