Answer: i. The reaction consumes 3 moles of iron(III) oxide.
ii. The reaction produces 3 moles of aluminum oxide and 6 moles of iron.
Explanation:
The balanced reaction is :
According to stoichiometry:
a) 2 moles of aluminium consume = 1 mole of
6 moles of aluminium consume = moles of
b) 2 moles of aluminium produce = 1 mole of
6 moles of aluminium consume = moles of
2 moles of aluminium produce = 2 moles of
6 moles of aluminium consume = moles of
Alcohol begins to affect your brain cells
False, fossil fuels and stuff like that contributes to the presence of greenhouse gases.
Answer : The water's temperature change will be,
Explanation : Given,
Density of water = 0.998 g/mL
Volume of water =
(conversion used : 1 L = 1000 mL)
Specific heat of water =
Heat absorbed =
(conversion used : 1 kJ = 1000 J)
First we have to determine the mass of water.
Now we have to calculate the change in temperature of water.
Formula used :
where,
Q = heat absorbed by water
m = mass of water
= specific heat of water
= change in temperature
Now put all the given value in the above formula, we get:
Therefore, the water's temperature change will be,
Answer:
The correct answer is 0.89 mol.
Explanation:
At STP (Standard Temperature and Pressure) conditions, 1 mol of an ideal gas occupies a volume of 22.4 L. If we assume STP conditions, we can consider a convertion factor of 1 mol/22.4 L to convert the volume of NO₂ from liters to moles:
20,00 L x 1 mol/22.4 L = 0.89 mol
So, at STP, we would have 0.89 mol of NO₂