Answer:
True or False?
Explanation:
A. False and or sometimes.
B. False and or sometimes.
What is our main objective here??????????????????
Answer:
0.2349 moles, 10.3356 g
Explanation:
The given reaction is :
The balanced reaction by equating the same number of each atom both side is :
Given that :
Amount of oxygen gas = 11.9 g
Molar mass of oxygen gas = 32 g/mol
The formula for the calculation of moles is shown below:
Thus, moles are:
From the reaction,
19 moles of oxygen gas on reaction forms 12 moles of carbon dioxide
Also,
1 mole of oxygen gas on reaction forms 12/19 moles of carbon dioxide
So,
0.3719 moles of zinc on reaction forms 
mole of carbon dioxide
<u>Moles of carbon dioxide formed = 0.2349 moles</u>
Mass of carbon dioxide = moles×Molar mass
Molar mass of carbon dioxide = 44 g/mol
<u>Mass of carbon dioxide formed = 0.2349 ×44 g = 10.3356 g</u>
A liquid because gas disolves with air
I think it is true because the sun rays
Glucose can be converted into ethanol, carbon dioxide and energy (usually in the form of heat).
Using chemical formulas, this can be illustrated as follows:
Glucose = Ethanol + Carbon Dioxide + Energy
C6H12O6 = 2C2H5OH + 2CO2 + Energy
From the periodic table:
molecular mass of carbon = 12 grams
molecular mass of oxygen = 16 grams
molecular mass of hydrogen = 1 gram
Therefore:
molar mass of glucose = 6(12) + 12(1) + 6(16) = 180 grams
molar mass of ethanol = 2(12) + 5(1) + 16 + 1 = 46 grams
molar mass of carbon dioxide = 1(12) + 2(16) = 44 grams
Based on the conversion equation, each one mole of glucose converts into two moles of ethanol and two moles of carbon dioxide.
Therefore, each 180 grams of glucose converts into 46 x 2 = 92 grams of ethanol and 44 x 2 = 88 grams of carbon dioxide in addition to energy.
To calculate the mass of ethanol and carbon dioxide produced from 200 grams of glucose, we will simply use cross multiplication as follows:
mass of ethanol = (200 x 92) / 180 = 102.2 grams
mass of carbon dioxide = (200 x 88) / 180 = 97.7 grams
Total mass of ethanol and carbon dioxide = 102.2 + 97.7 = 199.9 grams
