You have a couple of extraneous numbers there. You don't care about anything except the mass of the flask + water/alcohol mixture (88.219 grams). and the mass of the flask (40.638 grams)
Formulas
mass water/alcohol mixture = mass of the flask with fluid - mass flask
density = mass / volume
Solution
mass water/alcohol mixture = 88.219 - 40.638 = 47.581
Volume = 50 mL
Density = mass / Volume
Density = 47.581/50
Density = 0.95162 There are 4 sig digs so the answer should be
<span>Uranium-236 is intermediate nuclei. created by fusion reactions an unstable isotope of uranium created from four hydrogen atoms used in the H-bomb.
Following is the reaction involved in above process:
+ 
→ 
→ 
+ 
+ 3 