There are two isotopes of uranium abundant in nature
U235 and U238
As given that the sample has average molar mass of 237.482 amu
Let the amount of U235 in 100g sample = x
the amount of U238 in 100 g sample = 100-x
the average molar mass = [235(x) + 238 (100-x)] / 100
237.482 = [235(x) + 238 (100-x)] / 100
237.482 X 100 = [235(x) + 238 (100-x)]
23748.2 = 235 x + 23800 - 238x
51.8 = 3x
x = 17.27 g
So percentage of U-235 = 17.27 %
Answer:
On average, agriculture accounts for 70 percent of global freshwater withdrawals. In the last 30 years, food production has increased by more than 100 percent. FAO estimates that about 60 percent more food will be needed by 2050 to meet the food requirements of a growing global population.
Explanation:
Because i learnt this before and i aced a test about it dont worry
Answer:
Oxidizing agent: ZnO
Reducing agent: C
Substance Oxidizes: CO
Substance Reduced: Zn
Explanation:
<em>Oxidation</em> means the gain of oxygen atom but the lose of hydrogen atom.
<em>Reduction</em> means the lose of oxygen atom but the gain of hydrogen atom.
This is a <em>redox</em> reaction since both reactions are taking place.