write the formula and molecular wt of each of following.
a) cautic potash. b) bakibg powder. c) lime stone. d) cautic soda. e) ethanol.

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Solution

$F o r m u l a a) C a u s t i c P o t a s h = K O H b) B a k i n g p o w d e r = N a H C O_{3} c) L i m e s t o n e = C a C O_{3} d) C a u s t i c s o d a = N a O H e) E t h a n o l = C_{2} H_{5} O H M o l e c u l a r w e i g h t a) K O H = 39 + 16 + 1 = 56 g b) N a H C O_{3} = 23 + 1 + 12 + 3 \times 16 = 84 g c) C a C O_{3} = 40 + 12 + 3 \times 16 = 100 g d) N a O H = 23 + 16 + 1 = 40 g e) C_{2} H_{5} O H = 2 \times 12 + 5 + 16 + 1 = 46 g$

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Question 47
Write the formulae for the following and calculate the molecular mass for each one of them

(a) Caustic potash

(b) Baking powder

(d) Caustic soda

(e) Ethanol

Write the chemical formula for Caustic potash. Also, calculate the molecular mass of Caustic potash.

Symbol of caustic soda and caustic potash and potassium

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