how much quantity of limestone will be required to prepare 1. 100 kg of cao and 200 kg limewater

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Solution

$C a C O_{3} \to C a O + C O_{2} 100 g 56 g 56 g o f C a O i s p r e p a r e d f r o m 100 g o f C a C O_{3} . S o f o r 1.1 K g (1.1 \times 10^{3} g) o f C a O t h e a m o u n t o f C a C O_{3} = \frac{100}{56} \times 1.1 \times 10^{3} = 1.964 \times 10^{3} g o r 1.964 K g o f l i m e s t o n e 2) C a O + H_{2} O - - - - > C a (O H)_{2} 56 g 74 g 74 g o f C a (O H)_{2} i s p r e p a r e d f r o m 56 g o f C a O . S o 200 K g l i m e w a t e r i s p r e p a r e d f r o m = \frac{56}{74} \times 200 \times 10^{3} = 151.35 \times 10^{3} g = 151.35 K g o f C a O 1.1 K g o f C a O i s p r e p a r e d f r o m 1.964 K g o f C a C O_{3} 151.35 K g o f C a O i s p r e p a r e d f r o m = \frac{1.964}{1.1} \times 151.35 = 270.23 K g o f l i m e s t o n e$

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