Question

В среднем одно дерево в сутки поглощает 82г углекислого газа.В результате реакции фотосинтеза (6CO2+6H2O=C6H12O6+6O2)выделяется кислород.Определите массу кислорода который за 30 дней вырабатывает одно дерево.

Answer 1

 82г                                     Х г
6CO2+6H2O=C6H12O6+6O2
6моль                               6моль
40 г/моль                           32г/моль
составляем пропорцию 
82  -  х
240 - 192

х=192*82/240=65,6 г в сутки 

значит за 30 дней 
будет 65,6*30=1968 г или 1,968 кг

Answer 2

Calculation of Oxygen Produced by a Tree in 30 Days

To determine the mass of oxygen produced by a tree in 30 days, we need to calculate the amount of oxygen produced per day and then multiply it by the number of days.

Given that one tree absorbs 82 grams of carbon dioxide (CO2) per day and releases oxygen (O2) through the process of photosynthesis, we can use the balanced equation for photosynthesis:

6CO2 + 6H2O → C6H12O6 + 6O2

From this equation, we can see that for every 6 moles of carbon dioxide consumed, 6 moles of oxygen are produced.

To calculate the mass of oxygen produced, we need to convert grams of carbon dioxide to moles and then use the mole ratio to determine the moles of oxygen produced. Finally, we can convert the moles of oxygen to grams.

Let's proceed with the calculation:

1. Convert grams of carbon dioxide to moles: - The molar mass of carbon dioxide (CO2) is approximately 44 grams/mol. - Therefore, 82 grams of CO2 is equal to 82/44 = 1.86 moles of CO2.

2. Determine the moles of oxygen produced using the mole ratio: - According to the balanced equation, for every 6 moles of CO2 consumed, 6 moles of O2 are produced. - Since the mole ratio is 1:1, we can conclude that 1.86 moles of CO2 will produce 1.86 moles of O2.

3. Convert moles of oxygen to grams: - The molar mass of oxygen (O2) is approximately 32 grams/mol. - Therefore, 1.86 moles of O2 is equal to 1.86 * 32 = 59.52 grams of O2.

Therefore, one tree would produce approximately 59.52 grams of oxygen in 30 days.

Please note that this calculation assumes a constant rate of photosynthesis and does not take into account other factors that may affect the actual oxygen production of a tree, such as environmental conditions and tree species.