Sound, light, kinetic, heat energy
Well the sun wouldn't be up yet it would be dark and when you wouldn't be able to see it they would see it in the sky
Answer:
Answer is given below.
Explanation:
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<em>Alkalinity = 400 mg/L in terms of CaCO3 </em>
<em>a.) Total Hardness is defined as the sum of calcium and magnesium iion concentration in terms of CaCO3
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<em>Total Hardness = [Ca+2]*{50/20) + [Mg+2]*{50/12) = [200]*{50/20) + [60]*{50/12) = 750 mg/L in terms of CaCO3
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<em>b.) Non-Carbonate hardness = Total Hardness - Carbonate Hardness
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<em>Now here as the Total Hardness is greater than alkalinity ,Thus
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<em>Carbonate Hardness = Alkanlinity = 400 mg/L in terms of CaCO3
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<em>Non-Carbonate hardness = 750 - 400 = 350 mg/L in terms of CaCO3
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<em>c.) As Total hardness is greater than Alkalinity thus Carbonate hardness is equal to the Alkalinity.
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<em>Carbonate hardness = 400 mg/L in terms of CaCO3
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<em>d.) Now as the Total hardness of the ground water is more than 180 mg/L,Thus it needs removal of hardness.
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<em>There are many treatment options for the removal of hardness:
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<em>i) Ion Exchange method
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<em>ii) Lime soda method</em>
Answer:
1728 kg is the mass of air for the room
Explanation:
An exercise of unit conversion.
The volume of the room will be:
24 m . 15 m . 4m = 1440 m³
Density of air is 1.20 g/L which means that in 1L, there is contained 1.20 g of air.
1L = 1dm³
1m³ = 1000 dm³
1440 m³ . 1000 = 1440000 dm³ ⇒ 1.44x10⁶ L
Density of air = 1.20 g/L = mass of air / volume of air
1.20 g/L = mass of air / 1.44x10⁶ L
1.20 g/L . 1.44x10⁶ L = mass of air → 1728000 grams
1 g = 1x10⁻³ kg
1728000 g / 1000 = 1728 kg
