CI CH3- LOCH3 NH₂ + OH NH O 1. CH3MgBr 2. H3O+ & AICI3 1. excess CH3I 2. Ag₂O, H₂O 3. heat AICI3 H heat H.O. 1. Br₂, PBr3 2. H₂O Hg, Zn, HCI 1. KOH 2. CI 3. KOH, H₂O, heat CH3 blank 1 blank 2 blank 3 blank 4 blank 5 blank 6 blank blank 8 blank 9 1. KOCH 3 2. H₂O, H+, heat blank 10

Calculate the molarity of each of these solutions.a. A 5.623-g sample of NaHCO3 is dissolved in enough water to make 250.0 mL of solution. [3]b. A 184.6-mg sample of K2Cr2O7 is dissolved in enough water to make 500.0 mL of solution. [3]A solution of ethanol (C2H5OH) in water is prepared by dis-solving 75.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution

1. Calculate the number of moles in these quantities:(a) 25.0 g KNO3 (c) 5.4 x 102 g (NH4)2C2O4(b) 56 millimol NaOH (d) 16.8 mL H2SO4 solution (d = 1.727 g/mL, 80.0% H2SO4 by mass)

2 Na + Cl2 --> 2 NaCl What is the mole ratio of sodium to sodium chloride? a.  2:1 b.  2:2 c.  1:2

[1pt] A 0.86 M HCl solution is available in the laboratory. How much DI water is needed to prepare 15.0 mL of a 0.18 M HCI solution?

When you dissolve KCl in water, does the reaction give off heat or absorb heat? Is the dissolution of KCl in water endothermic or exothermic?

#25y of a 23% by mass magnesium chloride (MW= 95.21 g/mole) solution is reacted with 125.0 mL da125M solution of silver nitrate (MW= 169.87g/mole) determine the mass of silver chloride (MW = 143.32 p/mole) produced

a. A  2.0 M potassium chloride solution is prepared by dissolving 37.3 g of potassium chloride in distilled water. What is the volume of the solution formed?(Relative atomic masses: K = 39.1, Cl = 35.5) b. What volume of 0.05 M Na2CO3 solution can be prepared from 2.65 g of Na2CO3?(relative atomic mass Na=23.0, C=12.0, O=16.0) c. Which of the following apparatus is usually used to deliver 25.0 cm3 of a solution into a conical flask?A. BuretteB. PipetteC. Beaker D. Volumetric flask

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