the physical properties of ammonium sulphate are colorless gas, less dense than air, pungent shell, very soluble in water, alkaline gas
The answer that fits the blank are ONE and TWO, respectively. Given Elliot's study or experiment, she has only one experimental group and one control group which brings to the fact that she has only one independent variable that has two groups.
Acid Rain is a result of chemical compounds, like sulfur dioxide and nitrogen oxide, are released into the air. These compounds rise high into the atmosphere and react with the different elements and compounds in the air, such as oxygen and water. This reaction forms acidic pollutants and eventually fall back to the ground as acid rain. This phenomenon is attributed to industrial waste; and it was especially common in the wake of the Industrialization Era of the United States.
The reaction is given as:
Here, one mole of cadmium nitrate gives one mole of cadmium hydroxide.
Now,
number of moles = (1)
Concentration = 0.530 M
Volume = 35.0 mL
Substitute the above values in formula (1):
number of moles = (1 L =1000 mL)
=
From the reaction, two moles of sodium hydroxide is needed to give one mole of cadmium hydroxide.
Now,
number of moles of sodium hydroxide which is needed to give of cadmium hydroxide.
Number of moles of sodium hydroxide =
=
Now, mass of sodium hydroxide is calculated by:
Mass of sodium hydroxide =
=
=
Thus, mass of sodium hydroxide required is