Answer:
1) Hydrogen Peroxide. Hydrogen Peroxide (H2O2) is a colourless liquid that resembles water in many respects. Its physical properties are very similar to those of water, except that it is 40% denser. ... The single bond between the two oxygen atoms is weak, so that H2O2 readily fragments into either H and HO2 or two OHs.
2) Is human activity warming the Earth or do recent signs of climate change signal natural variations? In this feature article, scientists discuss the vexing ambiguities of our planet's complex and unwieldy climate.
a) The Water Cycle. ... The water cycle describes how water evaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation.
b) Carbon is an essential element for life on Earth. Every living organism has carbon compounds inside each of its cells, such as fats and proteins. The carbon cycle shows how atoms of carbon can exist within different compounds at different times and be recycled between living organisms and the environment.
Explanation:
The ¹H-NMR of 1-Butanol is shown below,
There are
Five signals found in the proton NMR spectrum of 1-Butanol.
A
Broad Singlet signal at ≈
4.7 ppm (Down Field = More Deshielded) is for proton directly attached to Oxygen atom.
Triplet Signal at ≈
3.65 ppm (Down Field = Deshielded) is for methylene group directly attached to Oxygen atom.
Multiplet Signal at ≈
1.6 ppm is for methylene which is present between two methylene groups. The shielding effect is increasing as moving away from Oxygen atom.
Multiplet Signal at ≈
1.4 ppm is for methylene which is present between terminal methyl and methylene groups. The shielding effect is increasing as moving away from Oxygen atom.
Triplet Signal at ≈
0.9 ppm (Up Field = Most Shielded) is for terminal methyl group attached to methylene group.
Result: Five Signals are found in the ¹H-NMR of 1-Butanol.
Answer:
The equilibrium constant Ksp of the generic salt AB2 = 6.4777 *10^-8 M
Explanation:
Step 1: The balanced equation
AB2 ⇒ A2+ + 2B-
Step 2: Given data
Concentration of A2+ = 0.00253 M
Concentration of B- = 0.00506 M
Step 3: Calculate the equilibrium constant
Equilibrium constant Ksp of [AB2] = [A2+][B-]²
Ksp = 0.00253 * 0.00506² = 6.4777 *10^-8 M
The equilibrium constant Ksp of the generic salt AB2 = 6.4777 *10^-8 M
If I still remember how to solve these.. I think it’s 50? (50 m/s)