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2 years ago

Explain what is meant by water quality

Chemistry

2 answers:

stellarik [79]2 years ago

7 0

<h2>Answer:</h2>

Water quality is a parameter to qualify based on several key factors. Some of these factors are:

• Conceptration of dissolved oxygen;

• Bacteria levels;

• Amount of salt (salinity);

• Amount of material suspended in the water (turbidity).

Other elements that might be measured to determine water quality are:

• Concentration of algae;

• Pesticides;

• Herbicides;

• Heavy metals.

katovenus [111]2 years ago

6 0

Answer:

a measure of the suitability of water for a particular use based on selected physical, chemical, and biological characteristics.

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4 years ago

Lead (II) carbonate decomposes to give lead (II) oxide and carbon dioxide: PbCO 3 (s) PbO (s) CO 2 (g) ________ grams of lead (I

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We will have 7.30 grams lead(II) oxide

Explanation:

Step 1: Data given

Mass of lead (II)carbonate = 8.75 grams

Molar mass PbCO3 = 267.21 g/mol

Step 2: The balanced equation

PbCO3 (s) ⇆ PbO(s) + CO2(g)

Step 3: Calculate moles PbCO3

Moles PbCO3 = mass / molar mass

Moles PbCO3 = 8.75 grams / 267.21 g/mol

Moles PbCO3 = 0.0327 moles

Step 4: Calculate moles PbO

For 1 mol PbCO3 we'll have 1 mol PbO and 1 mol CO2

For 0.0327 moles PbCO3 we'll have 0.0327 moles PbO

Step 5: Calculate mass PbO

Mass PbO = moles PbO * molar mass PbO

Mass PbO = 0.0327 moles * 223.2 g/mol

Mass PbO = 7.30 grams

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4 years ago

Explain what is meant by water quality​

Explain what is meant by water quality