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Describe the preparation of 800 mL of 2 M HCl from the commercial reagent that is 37.5% HCl (%w/w) and and has density of 1.17g/mL.
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- describe the procedure of 2.00 L of 0.120 M HClO4from the commercial reagent [71.0% HClO4(w/w), specificgravity1.67].A mixture of ethanol, benzaldehyde and KMnO4 is mixed together. Would you expect a precipitate to form based on the reactants functional groups?If 250 mL of a 15%(v/v) solution of methylsalicylate in alcohol is diluted to 750mL, what will be the percentage strength(viv)? а. 10% O b.60% Oc. 50% Od.6% e. 5%
- A reagent bottle contains 250 cm3 of 0,4 mol.dm–3 oxalic acid(C2O4H2) solution. Calculate the mass of pure oxalic acid thatmust be dissolved in this solution so that its new concentration is 0,6 mol.dm–3. Assume that the volume of the solution remainsconstant12 g of compound “Y” dissolves in 10 ml of acetone at 25 oC and 0.85 g of the same compound dissolves in 10 ml of boiling acetone. What volume of acetone would be required to purify a 5.0 g sample of compound?Q/ Describe the preparation of 900 mL of 3.00 M HN03 from the commercial reagent that is 70.5% HNO 3 (w/w) and has a specific gravity of 1.42.
- Describe how to prepare 100 mL of approximately 60% (w/v) NaOH from solid NaOHConcentrated hcl has a specific gravity of 1.185 and is 36.5% (w/w) in HCl. Describe how 1.0 L of 0.050M HCl would be prepared from the concentrated reagent.Oral rehydration salts are stated to contain the following components: Sodium Chloride 3.5g Potassium Chloride 1.5g Sodium Citrate 2.9g Anhydrous Glucose 20.0g 8.342 g of oral rehydration salts are dissolved in 500 ml of water. 5 ml of the solution is diluted to 100 ml and then 5 ml is taken from the diluted sample and is diluted to 100 ml. The sodium content of the sample is then determined by flame photometry. The sodium salts used to prepare the mixture were: Trisodium citrate hydrate (C6H5Na3O7, 2H2O) MW 294.1 and sodium chloride (NaCl) NW 58.5. Atomic weight of Na = 23. The content of Na in the diluted sample was determined to be 0.3210 mg/100 ml. Determine the % of stated content of Na in the sample. The stated should be 104.5, how??
- Oral rehydration salts are stated to contain the following components: Sodium Chloride 3.5g Potassium Chloride 1.5g Sodium Citrate 2.9g Anhydrous Glucose 20.0g 8.342 g of oral rehydration salts are dissolved in 500 ml of water. 5 ml of the solution is diluted to 100 ml and then 5 ml is taken from the diluted sample and is diluted to 100 ml. The sodium content of the sample is then determined by flame photometry. The sodium salts used to prepare the mixture were: Trisodium citrate hydrate (C6H5Na3O7, 2H2O) MW 294.1 and sodium chloride (NaCl) NW 58.5. Atomic weight of Na = 23. The content of Na in the diluted sample was determined to be 0.3210 mg/100 ml. Determine the % of stated content of Na in the sample.An antiseptic solution is made by mixing phenol with water in the ratio 2: 25. This solution is then mixed with further water in the ratio of 3: 4. How much water would be contained in 1L of the final solution? (Answer to the nearest mL.)? The last soluton provide by Bartleby did not clarify the first step methods and where they got the fractions in the solution. Please provide a more detailed explanation of the solution and how it was establishedcium chloride per liter. Express the centration in terms of milliequivalents of calcium chloride (CaCl2-2H20-m.w 147) per liter. con- 27. How many milliequivalents/of potassium would be supplied daily by the usual dose (0.3 mL three times a day) of saturated potassium iodide solution? Saturated po- tassium iodide solution contains 100 g of potassium iodide per 100 mL.oluce 28. An intravenous solution calls for the addi- tion of 25 mEq of sodium bicarbonate. How many milli 4%