Q-5) A 16.0 ounce specially drink contains 285 Mgcaffine. what is the concentrat

Question

Q-5) A 16.0 ounce specially drink contains 285 Mgcaffine. what is the concentration of caffein in this solution? onefluid ounce is equivalent to 29.57ML. the formula for caffeine isC8H10N4O2. number________________M Q-6) A car radictor uses a solution that is 12.5%.( bymass) ethylene glycol. C2H4(OH)2. if the density of this solutionis 1.088 g/ml, what is the molarity of the ethylene glycolsolution? (the molar mass of C2H4(0H)2 is 62.08 g/mol) Number______________M Q-5) A 16.0 ounce specially drink contains 285 Mgcaffine. what is the concentration of caffein in this solution? onefluid ounce is equivalent to 29.57ML. the formula for caffeine isC8H10N4O2. number________________M Q-6) A car radictor uses a solution that is 12.5%.( bymass) ethylene glycol. C2H4(OH)2. if the density of this solutionis 1.088 g/ml, what is the molarity of the ethylene glycolsolution? (the molar mass of C2H4(0H)2 is 62.08 g/mol) Number______________M

Explanation / Answer

Q-6)Density: 1.088 g/mol Molar mass: 62.08 W%: 12.5 Mass of 1cm3 of solution= 1.088g mass of 1000 cm3       =1088g No_ of moles in C2H4(OH)2 =1088*12.5/100 g                                              =136 g No_ ofmoles                         =136/62.08                                             =2.190 But there is a little problem about the molarity.To find themolarity volume should be given

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