السسسلآمـ عليكمـَ ,,,~
بليزِ مآإنيّ ع’ـآرفة كيف أوِجد الـ yield منَ دآإ السسؤآإل ,,,
بسً أششرحوِليّ الطرِيقة ,,,~
(26) Reaction of 1.00 mole CH4 with excess Cl2 yields 96.8 g CCl4. What is the percent yield of CCl4 ?
(Atomic weights: C = 12.01, Cl = 35.45).
(a) 64.3
(b) 57.3
(c) 65.9
(d) 62.9*
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وفيّ دآ السؤِآإلـ للموِلآرية ,,~ يآإريت أحد يقولأيّ كيف طلع ؟!!
(28) Fluoxymesterone, C20H29FO3, is an anabolic steroid. A solution is prepared by dissolving 0.01 g of the steroid in 500.0 mL of water. If this solution is diluted to a final volume of 1.00 L. What is the resulting molarity?
(Atomic weights: C = 12.01, O = 16.00, F = 19.00, H = 1.008).
(a) 5.94 x 10-11
(b) 2.38 x 10-11
(c) 5.94 x 10-8
(d) 1.488 x 19-5*
وِالله الموِفـ’ق ،‘