1. Identify the charge of iron in the following iron-containing copound. (ex: +1

Question

1. Identify the charge of iron in the following iron-containing copound. (ex: +1 or -1)

  Fe(H2PO4)3 and Fe(NO3)2  

2. Name the following compounds, including Roman numerals where appropriate. FeCrO4  

3. Name the following acid. H2SO3 and H3PO4

4. The outer wall of Fulmer Hall contains an average of 4.3 bricks per square foot of wall (4.3 bricks/ft2). How many bricks would be required to replace a section of wall measuring   7 feet by   8   feet?

5. Balance the following equation, entering your values a to d separated by commas:

a   NaCl +   b Ba(NO3)2 c NaNO3 + d BaCl2

6. How many moles of NaCl will be required to react with   8 moles of Ba(NO3)2?

7. Consider the equation 3 NO2 (g) + H2O (l) 2 HNO3 (aq) + NO (g)

What is the minimum mass of NO2 (g) required to produce   50 g of nitric acid?

Explanation / Answer

1. Fe(H2PO4)3 here Fe is in +3 oxidation state

because   H2PO4will show -1 there is a three units are there so -3 so metal is +3

Fe(NO3)2 here Fe is in +2 oxidation state

NO3 will show -1 oxidation number there is a two units are there so -2 so metal will show +2

2.

FeCrO4 name is Iron (II) Chromate

3.

H2SO3 name is sulfurous acid

H3PO4 is Phospharic acid

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