A solution of volume (300 ml), and if the solution contains (C6H1206) (Molecules (N)= 3.01x 1023), Calculate the molarity of the solution given that the number of Avogadro is (NA=6.022 x 1023), then calculate the molecular weight of (C6H1206)? O=16, H=1, C=12
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Q: A solution of volume (300 ml), and if the solution contains (C6H1206) (Molecules (N)= 3.01x 1023),…
A: Ans
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- (a) What is the molarity of a solution made by dissolving 10 moles of sucrose, C12H22O11, in 10L of water? (b) How much boric acid (H3BO3), in grams, is needed to be dissolves in 300.g of water to make a 1.50m aqueous H3BO3 solution? The molar mass of H3BO3 is 61.83g/mol. (c) How much aluminum sulfate (Al2(SO4)3) in moles, is needed to be dissolved in 500g of water to make a 1.0m aqueous Al2(SO4)3 solution?How many milliliters of concentrated sulfuric acid, 94.0% (w/w), specific gravity of 1.831 are required to prepare 1 liter of a 0.100 M solution?Concentrated nitric acid is 23 M. what volume of HNO3 must be diluted with distilled water to prepare 5.00 L of 0.50 HNO3? Express your answer to two significant figures and include appropriate units. V=
- The density of concentrated ammonia, which is 28.0% w/w NH3 is 0.899 g/mL. What volume of this reagent should you dilute yo 1.0x10^3 mL to make a solution that is 0.036M in NH3A Hospital pharmacist wants to use three lots ZnO ointment containing repectively 50%, 20% and 5% ZnO. In what proportion should they be mixed to prepare a 10% ZnO ointment?What is the mass/volume percent,%(w/v), of sucrose(C11H22O12) in a solution prepared by dissolving 39.0 g of sucrose(C11H22O12) in enough water to make a 355 mL of solution?
- What volume of a 0.33-M C12H22O11 solution can be diluted to prepare 25 mL of a solution with a concentration of 0.025 M?What molaity of pentane is obtained by dissolving 5g pentane, C5H12, in 245 g hexane C6H12On an emergency cart, you have sodium bicarbonate solution (NaHCO3), 44.6 mEq/50 ml. A physician orders an aerosol of 5 cc and 3.25% strength. How many milliliters of the bicarbonate solution do you need? 1 mEq=1/1000 GEW; GEW= gram formula wt/valence Atomic weights: Na, 23; H, 1; C, 12; 0, 16
- Consider Palmitic acid C16H32O2, a common fatty acid used in the manufacture of soap. A solution of palmitic acid is prepared by mixing 112 g palmitic acid with 725 mL of benzene C6H6. The density of the resulting solution is 0.902 g/mL. Palmitic acid (molar mass = 256 g/mol and density = 0.852 g/mL); Benzene (molar mass = 78 g/mol and density = 0.879 g/mL) What is the %m/m of the solution? Final answer must be rounded off to 1 decimal place, and shall NOT have any unit.What is the mole fraction of CH3COOH in a solution containing 1.50 g CH3COOH (FM= 60.053 g/mol) and 1000.0 g H2O (density=1.00 g/mL)?When a Vitamin C (ascorbic acid; MM = 176.12 g mol-1) tablet is crushed, dissolved and titrated with 0.0340 M KIO3(aq) to a purple/blue endpoint (given by a starch indicator), the volume of KIO3 used is 29.80 mL. If 60 mg of ascorbic acid is the recommended dietary allowance (i.e., 100% of the RDA), then what is the % RDA for the Vitamin C in the tablet? KIO3(aq) + 5 KI + 6 H+ → 3 I2(aq) + 3 H2O I2 (aq) + ascorbic acid → 2 I- + dehydroascorbic acid