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Reasons for iron discolouration.

A shipment of iron-fortified powdered baby formula has been rejected by the buyers in china because the power is off-color. The color of the powder should be cream-colored, but this shipment is reddish-brown to gray. Investigation by the manufacturer shows that the manufacturing process is simply "bucket chemistry". This means that nutrients, vitamins, and other additives are added to the powder literally by the bucket. Armed with these facts and your knowledge of chemistry, what do you think is the reason for the discoloration? "Understanding the why of a solution- the process of deduction- is far more important than the solution itself." Chris Claremont and George Lucas. Shadow Da... click for more

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

4787

OTA ID:

101562

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Understanding a scientific method.

Explain what is meant by a Scientific Method.

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

4837

OTA ID:

102922

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Calculating the normality of a 1.50 M solution of H3PO4.

What is the normality of a 1.50 M solution of H3PO4?

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

5017

OTA ID:

103139

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Balancing ionic chemical equations.

When the following ionic equation in an acid solution is balanced: Fe2+(aq) Cr2O7 2-(aq) ---> Fe3+(aq) + Cr3+(aq) what is the sum of the smallest whole-number (integer) coefficients of the reactants and products?

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

5021

OTA ID:

103139

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Calculating the molarity of a solution.

A 53% (by mass) solution of sulfuric acid (H2SO4) has a density of 1.41 g mL-1. What is the molarity of the solution?

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

5022

OTA ID:

103139

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