The molarity of the solution prepared by dissolving 6 . 3 g of oxalic acid H 2 C 2 O 4 · 2 H 2 O in 250 mL of water in mol L - 1 is x × 10 - 2 . The value of x is _________ . (Nearest integer) [Atomic mass : H : 1 . 0 , C : 12 . 0

Question

The molarity of the solution prepared by dissolving 6 . 3 g of oxalic acid H 2 C 2 O 4 &#183; 2 H 2 O in 250 mL of water in mol L - 1 is x &#215; 10 - 2 . The value of x is _________ . (Nearest integer) [Atomic mass : H : 1 . 0 , C : 12 . 0 , 0 : 16 . 0 J ]

Quantrex Academy · Accepted Answer

Correct answer: 0

M = W solute &#215; 1000 GMM solute &#215; V ml = 6 . 3 &#215; 1000 126 &#215; 250 = 0 . 2 &#160; M = 20 &#215; 10 - 2 So X = 20

The molarity of the solution prepared by dissolving 6 . 3 g of oxalic acid H 2 C 2 O 4 · 2 H 2 O in 250 mL of water in mol L - 1 is x × 10 - 2 . The value of x is _________ . (Nearest integer) [Atomic mass : H : 1 . 0 , C : 12 . 0 , 0 : 16 . 0 J ]

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The molarity of the solution prepared by dissolving 6 . 3 g of oxalic acid H 2 C 2 O 4 &#183; 2 H 2 O in 250 mL of water in mol L - 1 is x &#215; 10 - 2 . The value of x is _________ . (Nearest integer) [Atomic mass : H : 1 . 0 , C : 12 . 0 , 0 : 16 . 0 J ]

Correct answer

Step-by-step solution

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The molarity of the solution prepared by dissolving 6 . 3 g of oxalic acid H 2 C 2 O 4 · 2 H 2 O in 250 mL of water in mol L - 1 is x × 10 - 2 . The value of x is _________ . (Nearest integer) [Atomic mass : H : 1 . 0 , C : 12 . 0 , 0 : 16 . 0 J ]