Question
Calculate how much quantity of substance would be needed to make following solutions:
(i) 10mL of 0.05M NaOH
(ii) 10mL of 0.5N KOH
(iii) 0.9% NaCl
(iv) 5mL of 0.5% HCL
Answer :
Word Count : 347
Let's break down how to calculate the quantity of substance needed for each solution. ### (i) 10 mL of 0.05M NaOH We need to find the mass of NaOH required. First, use the formula: \[ \text{Moles} = Molarity \times Volume \] Where: - Molarity (M) = 0.05 M - Volume (V) = 10 mL = 0.01 L (converted from mL to L) \[ \text{Moles of NaOH} = 0.05 \, ____ _______ ________ ____ ____ _______ __________.
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Let's break down how to calculate the quantity of substance needed for each solution. ### (i) 10 mL of 0.05M NaOH We need to find the mass of NaOH required. First, use the formula: \[ \text{Moles} = Molarity \times Volume \] Where: - Molarity (M) = 0.05 M - Volume (V) = 10 mL = 0.01 L (converted from mL to L) \[ \text{Moles of NaOH} = 0.05 \, ____ _______ ________ ____ ____ _______ __________.
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