Answer:
4%
Explanation:
the answer is 4% , hope this help
Answer:
The correct answer is c) polar
Explanation:
Water is a polar chemical compound, formed by the covalent bond between hydrogen and oxygen. There is an electronegative region on the part of the latter and an electropositive one on the part of hydrogen. Each molecule forms a Hydrogen Bridge junction with the oxygen atom of another nearby molecule.
Answer:
Half-life at 629K = 252.4min
Explanation:
Using Arrhenius equation:
And as Half-life in a first order reaction is:
We can convert the half-life of 58.0min to know K₁ adn replacing in Arrhenius equation find half-life at 629K:
K = 0.01195min⁻¹ = K₁
K₂ = 2.75x10⁻³ min⁻¹
And, replacing again in Half-life expression:
<h3>Half-life at 629K = 252.4min</h3>
Answer:
58.944 g
Explanation:
From the question given above, the following data were:
Mole of SO2 = 0.9210 mole
Mass of SO2 =?
Next, we shall determine the molar mass of SO2. This can be obtained by adding the molar mass of sulphur and oxygen together as illustrated below:
Molar mass of SO2 = 32 + (2 × 16)
= 32 + 32 = 64 g/mol
Finally, we shall determine the mass of 0.9210 mole of SO2 as follow:
Mole of SO2 = 0.9210 mole
Molar mass of SO2 = 64 g/mol
Mass of SO2 =?
Mole = mass /Molar mass
0.9210 = mass of SO2 / 64
Cross multiply
Mass of SO2 = 0.9210 × 64
Mass of SO2 = 58.944 g
Thus, the mass of SO2 is 58.944 g.
