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A: Given : Amount of heat liberated = 5.59 KJ And the heat of fusion of ammonia = 5.66 KJ/mol.
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A: Interpretation: A molecular compound is found to consist of 30.4% nitrogen and 69.6% oxygen. A…
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A: Given : Mass of hydrate compound = 1.235 g And mass of water present = 0.511 g
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Q: Calculate the moles of C2H6O in 8.16x10^24 molecules of C2H6O
A: For C2H6O , Number of molecules = 8.16 × 1024
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A: Number of moles of O2 = 1.55 mol Number of molecules of O2 = ?
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- The quantity of 10% w/w/ sodium chloride solution that can be made from 0.5 av. lb of 18% w/w sodium chloride solution is _____ g.1. Iron (Fe) nail + CuSO4 solution ? turned into the rusty Iron (Fe) nail turned into black substance of Carbon No reaction 2. CuSO4.5H2O is a _______________. anhydrous copper sulfate hydrated copper sulfate dehydrated saltThe process of dissolving is favored if the __________ interactions are weaker than the __________ interactions. Select one: a. solvent-solvent; solute-solute and solute-solvent b. solute-solute and solvent-solvent; solute-solvent c. solute-solvent and solvent-solvent; solute-solute d. solute-solvent; solute-solute and solvent-solvent
- A solution is prepared by adding 0.9 mol of KCl (MW = 74.55 g/mol) to 893 g of water. The concentration of KCl is ________ molal.C. 92.3 m d. 226 mL 4. Solution B was prepared from solution A as shown below. The concentration of solution B is: 2. 2.00 M b. 2.00 x 10-3 C. 8.00 M d. 8.00 x 10-3 هایی ناخذ الكيو ستة آلية deez 2.00 ml A 500.00 ml M = 2.00 M X 500.00 ml M = ??‘’Concentrated’’ sulfuric acid solution is 95% sulfuric acid by mass (and the remainder water) and has a density of 1.64 gr/mL. ( Molar mass of H2SO4= 98 gr/mol ) What is the molarity of concentrated sulfuric acid solution? a. 18 M b. 12 M c. 16M d. 9M
- 24. R Benzalkonium chloride solution 240 mL Make a solution such that 10 mL diluted to a liter equals a 1:5000 w/v solution. Sig: 10 mL diluted to a liter for external use How many milliliters of a 17% w/v stock solution of benzalkonium chloride should be used in preparing the prescription?A solution is prepared by dissolving 24.5 g of CaCl2 (MW = 110.98 g/mol) in 355 mL of water. The density of the resulting solution is 1.05 g/mL. The concentration of CaCl2 in this solution is ________ molar.4. Calcium Hydroxide Solution (Lime Water) and olive oil are used because an emulsifying agent is formed in situ when these 2 solutions are agitated together. What is the emulsifying agent that is formed? a. calcium succinate b. calcium oleate c. succinic hydroxide d. palmitic hydroxide
