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WITCHER [35]
2 years ago
11

What is the chemical test for water

Chemistry
2 answers:
charle [14.2K]2 years ago
5 0
The temperature testing
ella [17]2 years ago
4 0

<em>Copper(II) sulfate in its purest form is white. Because it is devoid of water, it is also known as anhydrous copper(II) sulfate. A sample of copper(II) sulfate becomes blue when water is present.</em>

<em></em>

<em>• Temperature measurements </em>

<em></em>

<em>Temperature testing aids in determining the pace of biochemical reactions in an aquatic environment, as well as whether they can occur at all. If the water temperature is too high, the water's ability to contain oxygen is reduced, and organisms' ability to withstand certain contaminants is reduced.</em>

<em></em>

<em>• Checking the pH level</em>

<em></em>

<em>This instrument determines the acidity of water. The majority of aquatic species can only thrive in a pH range of 6 to 8.</em>

<em></em>

<em>• Test for chloride</em>

<em></em>

<em>Chloride may be found in both fresh and salt water. Mineral dissolution and industrial pollutants, on the other hand, can worsen its levels.</em>

<em></em>

<em>•  Testing for salinity</em>

<em></em>

<em>The total amount of non-carbonate salts dissolved in water is calculated. The salinity of your groundwater can tell you how salty your topsoil will become as the water table rises.</em>

<em></em>

<em>• Oxygen Dissolved Test</em>

<em></em>

<em>The amount of oxygen dissolved in water is measured with this device. Aquatic life can't conduct cellular respiration without it, hence it's an important indication of water quality.</em>

<em></em>

<em>•  Test for turbidity</em>

<em></em>

<em>Measures the quantity of suspended particle matter in the water, or, to put it another way, how clear the water is. When there is a lot of turbidity in the water, photosynthesis suffers because light can't get through, which raises the water temperature.</em>

<em></em>

<em>If you need more let me know!</em>

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A certain system absorbs 350 joules of heat and has 230 joules of work done on it what is the value of
marysya [2.9K]
According to the law of conservation of mass, the amount of BARIUM present of the reactants is the same as the amount present in the products (the precipitate). 

(11.21 g BaSO4) / (233.4 g/mol BaSO4) = 0.0480 mol BaSO4 and original barium salt 

(10.0 g) / (0.0480 mol) = 208.3 g/mol 

So it must have been BaCl2, because the molar mass of Barium is 137 which leave 71 grams left. Since Barium is a +2 charge, it means the atom next to it must be twice. Chlorine mass is 35, which twice is 71
7 0
4 years ago
Each student in a class placed a 2.00 g sample of a mixture of Cu and Al in a beaker and placed the beaker in a fume hood. The s
Aleks [24]

Answer:

Percentage mass of copper in the sample = 32%

Explanation:

Equation of the reaction producing Cu(NO₃) is given below:

Cu(s)+ 4HNO₃(aq) ---> Cu(NO₃)(aq) + 2NO₂(g) + 2H₂O(l)

From the equation of reaction, 1 mole of Cu(NO₃) is produced from 1 mole of copper. Therefore, 0.010 moles of Cu(NO₃) will be produced from 0.010 mole of copper.

Molar mass of copper = 64 g/mol

mass of copper = number of moles * molar mass

mass of copper = 0.01 mol * 64 g/mol = 0.64 g

Percentage by mass of copper in the 2.00 g sample = (0.64/2.00) * 100%

Percentage mass of copper in the sample = 32%

3 0
3 years ago
Is strontium phosphide a ionic or covalent bond
notka56 [123]

Answer:

Strontium is a soluble earth metal with the nuclear number 38. Phosphate is a polyatomic particle containing phosphorus and oxygen molecules. Strontium loses electrons to turn out to be emphatically charged, and phosphate is an adversely charged particle.

Explanation:

6 0
3 years ago
What is the molarity of a 3.0-liter solution that contains 0.45 moles of solute
sergeinik [125]
Moles = n/v where n is the moles of solute and v being the liters of solution.
We can put in the information provided to find the molarity.

Moles = .45/3.0 = .15
So we now know that the molarity of that solution is .15!
 I hope I helped you :). Make sure to memorize that formula because it's not that hard as long as you know what to plug in.
6 0
3 years ago
Read 2 more answers
Classify the following as homogeneous or heterogeneous mixtures, or pure
victus00 [196]

Explanation:

Sugar -  Pure substance

Magnesium Ribbon - Pure Substance

Vegetable soup  Heterogeneous mixture

Bath oil - Homogeneous mixture

Tin of assorted biscuits - Heterogeneous mixture

Peanuts and raisins - Heterogeneous mixture

Copper wire - Pure Substance

Bicarbonate of soda  (Baking soda)​ - Pure Substance

6 0
3 years ago
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