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Anna11 [10]
3 years ago
5

Which of the following properties of an unknown substance would allow it to be classified as a pure substance ?

Chemistry
1 answer:
DanielleElmas [232]3 years ago
5 0

D because that’s the only one that makes sense

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Helppppp pleaseeee xxxxxx
kogti [31]

Answer:

2812.6 g of H₂SO₄

Explanation:

From the question given above, the following data were obtained:

Mole of H₂SO₄ = 28.7 moles

Mass of H₂SO₄ =?

Next, we shall determine the molar mass of H₂SO₄. This can be obtained as follow:

Molar mass of H₂SO₄ = (1×2) + 32 + (16×4)

= 2 + 32 + 64

= 98 g/mol

Finally, we shall determine the mass of H₂SO₄. This can be obtained as follow:

Mole of H₂SO₄ = 28.7 moles

Molar mass of H₂SO₄ =

Mass of H₂SO₄ =?

Mole = mass / Molar mass

28.7 = Mass of H₂SO₄ / 98

Cross multiply

Mass of H₂SO₄ = 28.7 × 98

Mass of H₂SO₄ = 2812.6 g

Thus, 28.7 mole of H₂SO₄ is equivalent to 2812.6 g of H₂SO₄

3 0
3 years ago
Over time, an iron nail reacts with water to produce iron oxide, or rust. Which of the following is a signal that rusting has ta
svetlana [45]
Answer: Chemical composition modification (or, physical signal would be color).
6 0
3 years ago
Read 2 more answers
Calculate kb the base dissociation constant for [c2h3o2-], acetate anion, for each of your trials from the concentrations of spe
Pani-rosa [81]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Ka (mol/L ) = <span>0.00002340</span>

5 0
3 years ago
A rocket will rotate about a single point called the _?
Leokris [45]

Answer:

Center of gravity.

Explanation:

6 0
3 years ago
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The volume of a gas is 6.10 l, measured at 1.50 atm. what is the pressure of the gas in
Volgvan

Answer:

713.96mmhg

Explanation:

p1v1=p2v2

6.10×1.50/9.74

=0.939atm

=0.939*760

=713.96mmhg

5 0
2 years ago
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