Answer:
Random particle motion in liquids and gases is a difficult concept for in temperature, the particles move faster as they gain kinetic energy.
Explanation:
Answer:
a. 1 x 10^8
Explanation:
100 MHz = 100,000,000 Hz = 10^8 Hz
Answer:
3.76 g of O₂ are needed to produced 12.5 g of Fe₂O₃
Explanation:
The reaction is: 4Fe (s) + 3O₂ (g) → 2Fe₂O₃ (s)
4 moles of iron react to 3 moles of oxygen in order to produce 2 moles of iron (III) oxide.
Let's determine the moles of the produced product.
12.5 g . 1mol/ 159.69g = 0.0783 moles
If we assume Iron in excess, we work with the oxygen.
2 moles of Fe₂O₃ are produced by 3 moles of oxygen
Then, 0.0783 moles of Fe₂O₃ might be produced by (0.0783 . 3)/2
0.117 moles.
We convert the moles to mass → 0.117 mol . 32 g/1mol = 3.76 g
Answer:
1.6mole of H2O
Explanation:
First let us generate a balanced equation for the reaction. This is illustrated below:
2H2 + O2 —> 2H2O
Molar Mass of O2 = 2 x 16 = 32g/mol.
Mass of O2 = 25.6g
Number of mole of O2 = Mass /Molar Mass
Number of mole of O2 = 25.6/32
Number of mole O2 = 0.8mol
From the equation,
1mole of O2 produced 2moles H2O.
Therefore, 0.8mol of O2 will produce = 0.8 x 2 = 1.6mole of H2O
