Answer:
Explanation: Over pumping refers to pumping fresh water and reducing the level of an underground layer of water. In coastal areas, the lower underground layer of water is infiltrated with salt water, eventually increasing the salinity of the underground layer of water to the point that it is not drinkable. The scarcity of water in the coastal areas because the water in the coastal areas is not drinkable.
Mass of Neon : = 24.21564 g
Given
1.2 moles of Neon
Required
mass of Neon
Solution
The mole is the number of particles contained in a substance
1 mol = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass
Mol = mass : Molar mass
so mass of Neon(MM=20,1797 g/mol) :
= mol x MM
= 1.2 x 20,1797
= 24.21564 g
Answer:
Chemists use a solution called Universal Indicator to identify acids and bases. ... The Universal Indicator Color Guide shows that Universal Indicator turns red when it is added to a strong acid, it turns purple when it is added to a strong base, and it turns a yellowish-green when it is added to a neutral solution.
Explanation:
Answer:
Phenolphthalein
Explanation:
Answer:4.5 moles of sulfate ions are present in 1.5 moles of .
Explanation:
1 mol of gives 3 moles of sulfate ions.
Moles of sulfate ion in 1.5 moles :
4.5 moles of sulfate ions are present in 1.5 moles of .
Moles are the fraction of the chemical unit of the atoms, molecules, etc. The moles of sulfate ion present in 1.5 moles of aluminum sulfate is 4.5 moles.
Moles are the ratio of the mass of the substance to that of the molar mass of the substance. Moles are given in mol.
The reaction can be shown as:
From the reaction, it can be concluded that 1 mole of aluminum sulfate will give 3 moles of sulfate ions.
The moles of sulfate ions in 1.5 moles of aluminum sulfate will be,
Therefore, 4.5 moles of sulfate ions are present in aluminum sulfate.
Learn more about moles here:
Answer:
They are Red.