Titrating oxalic acid with sodium hydroxide

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1) Did we put a specific amount of oxalic acid in a specific volume of water?

2 points

yes

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2) If we go to the Periodic table and see the Atomic Mass number for C is 12, and we weigh out 12g of C, we then have...

2 points

1/2 mole of C

1 mole of C

2 moles of C

an indefinite amount of C

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3) If we weigh out 24g of C this means we have...

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1 mole

2 moles

3 moles

4 moles

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4) If we have 8 g of oxygen, and the Atomic Mass number for O is 16, then we have ...

2 points

1 mole

2 moles

3 moles

0,5 moles

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5) Number of moles (n) divided by volume (v) gives us...

2 points

volume

mass

moles

concentration (c)

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6) The acid with 2 H and 2 C and 4 O is called...

2 points

hydrochloric

nitric

carbonic

oxalic

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7) a chemical or molecular formula ending .2H2O means...

2 points

we have acid of crystalisation

we have base of crystalisation

we have water of crystalisation

we have salt of crystalisation

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8) Oxalic acid has a molar mass of...

2 points

90g

36g

126g

100g

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9) 6.3 g of oxalic acid of M = 126g equals...

2 points

1 mole

2 moles

0,5 moles

0,05 moles

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10) If we have a concentration of 0,05 moles in 1/4 dm cubed, the concentration c (where c=n/V equals) in moles per decimetre cubed equals...

2 points

0,2

0,02

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