Answer Guide S4_3B Titration

MCQ	Answer	Area of Chemistry
1.	D	[Acids & Bases]
2.	B	[Molar Solutions]
3.	C	[Precipitation Reactions/ Ionic Equations]
4.	B	[Chemical Formulae]
5.	C	[Acids & Bases]
6.	C	[Acids & Bases]
7.	A	[Reactions of Acids/ Salt naming]
8.	D	[Gram Formula Mass]

9.

		[Titration Calculation]
10

		[Open Ended Question]

11.
	a)	11.7g	gfm =58.5g
		n(moles) = 0.2 moles
	b)	1.4g	gfm = 56.0g
		n(moles) = 0.025 moles
	c)	0.975g	gfm = 195g
		n(moles) = 0.005 moles
	d)	33g	gfm = 132g
		n(moles)= 0.25 moles
	e)	15.5g	gfm = 310g
		n(moles) = 0.05 moles
	f)	3.05g	gfm = 122g
		n(moles) = 0.025 moles
12.

	a)	0.5 mol l^-1
		n(moles) = 0.25 moles	gfm = 10og
	b)	0.3125 mol l^-1
		n(moles) = 0.125 moles	gfm = 164g
	c)	0.125 mol l^-1
		n(moles) = 0.0125 moles	gfm = 106g
	d)	0.133 mol l^-1
		n(moles) = 0.0333 moles	gfm =174g
	e)	0.1 mol l^-1
		n(moles) = 0.0501 moles	gfm = 187.5g
	f)	0.2 mol l^-1
		n(moles) = 0.05 moles	gfm = 400g

13. D

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