)Calculate the quantity of lime and soda required for softening one million litre of the following sample of water. If the purities of lime and soda are 80% and 85% respectively. The impurities are Silica = 75 mg/lit. MgCl2 = 19 mg/lit. MgSO4 = 30 mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit.

Structural Analysis
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Chapter2: Loads On Structures
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(b)Calculate the quantity of lime and soda required for softening one million litre of the
following sample of water. If the purities of lime and soda are 80% and 85%
respectively. The impurities are Silica = 75 mg/lit. MgCl2 = 19 mg/lit. MgSO4 = 30
mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit.
(c) Discuss different chemical methods which have been used for the synthesis of
nanomaterial with special reference to temperature and solvent along with their
advantages and disadvantages.(d) Doping can be used to increase conductivity of the substances, explain with examples.
What are array and modules? Discuss their working.

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