Question

5 L What mass of ammonia is in the container? R-0.0821 L atm/mol K A) 17.0 g B) 59.8 g C) 0.180 g D) 8.04 g E) 0.07878 8) 8) Sodium polypbesplate is used in detergents to make the effective in band water. Calculate the oxidation number of phosphorus in NagP3010 N214- 5 -20 A) +3 B) +5 C) +15 D) +10 E) None of the above is the correct oxidation number. 0,olou, 9) Calcium chloride is used to melt ice and snow on roads and sidewalks and to remove water from organic liquids. Calculate the molarity of a solution prepared by diluting 165 mL of 0.688 M calcium chloride to 925,0 mL. A) 0.123 M B ) 0.743 M C ) 0.222 M D) 0.114 M E) 3.86 M .625L 10) Select the classification for the following reaction. ( HCleg) KCHaq) + H204)

can u answer 8 and 9

Answer 1

8. Correct option is (B).

9. Correct option is (A).

8) Nag P3010 Let a be the onidation number of P. so, 5 x(+1)+3(30)+ 10x42) = 0 5 + 3% - 20 =0 or 324 = +15 or r = tiszts Hence, the correct option is B] 9. Initial molarity, M = 0.688m Initial volume, V, = 165 m2 final volume, V2 = 925.0mL Now, apply Mivi= M₂ V2 on m = mv, Vz = 0.688m x 165m 925.0ml = 0.1227m Ž 0.123m Hence, correct option is A CS s Carer