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dmitriy555 [2]
3 years ago
12

Which iconic compound is used as a building material?

Chemistry
1 answer:
vredina [299]3 years ago
5 0

Answer:

Magnesium oxide is an ionic compound that can be used as a building material. MO2 is actually a raw material that used in producing cement for building houses, buildings, and other constructions.

Explanation:

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What is the correct name for the compound CaSO4•2H2O?
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CaSO4.2H2O is a white crystal at room temperature. It is soluble in water. Gypsum can be used as a fertilizer.


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What is the molarity of 20.2 g of potassium nitrate, KNO3, in enough water to make 250.0 mL of solution
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0.8M

Explanation:

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Determine the mass of each sample 1.55 kmol sulfur trioxide
xxMikexx [17]

Explanation:

Given parameters:

Number of moles of the sulfur trioxide = 1.55kmol = 1.55 x 10³mole

Unknown:

Mass of the sulfur trioxide = ?

Solution:

To solve for the mass of the sample of sulfur trioxide:

  •  Find the molar mass of the compound i.e SO₃

          atomic mass of S = 32g

                                    O = 16g

              molar mass = 32 + 3(16) = 80g/mol

  • Use the formula below:

           mass of SO₃ = number of moles x molar mass

           mass of SO₃ =  1.55 x 10³ x 80 = 124000g or 124kg

Learn more:

mole calculation  brainly.com/question/13064292

#learnwithBrainly

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