Answer:
Explanation:
Molarity is defined to be the number of moles of solute divided by volume of solution ( in L).
i.e Molarity = number of moles of solute / volume of solution ( in L )
(a) Step 1: Calculation of molarity of Na2S
Given, moles= 0.900 mol
and volume = 1.90 L
So, molarity = 0.900 mol / 1.90 L = 0.47 M
(b) Step 2: Calculation of molarity of MgS
We know, moles= mass given / molar mass = 31.3 g / 56.38 g/mol = 0.5552 mol
[ note: molar mass of MgS = 56.38 g /mol ]
and volume = 913 mL × (1 L / 1000 mL ) = 0.913 L [ note: 1 L = 1000 mL ]
So, molarity = 0.5552 mol / 0.913 L = 0.61 M
Calculate the molarity of 0.900 mol of Na, Sin 1.90 L of solution. molarity: .47 Calculate...
Calculate the molarity of 0.900 mol of Na,S in 1.90 L of solution. molarity: 47 м Calculate the molarity of 31.3 g of MgS in 913 mL. of solution. Enter numeric value molarity: I М TOOLS x10
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