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Rama09 [41]
3 years ago
15

How many moles of Mg are contained in 11.0 grams of magnesium?

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

Answer:

Should be 0.6106 though i could be wrong

Explanation:

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Select the appropriate shape for the given volume formula
pantera1 [17]
1. Cylinder
2. Sphere
3. Rectangular prism
4. Cone

Hope this can help.
6 0
4 years ago
A sample of nitrogen occupies 10.0 liters at 25°c and 98.7 kpa. What would be the volume at 20°c and 102.7 kpa?
Fynjy0 [20]

Answer:

  •    9.4 liter

Explanation:

<u>1) Data:</u>

  •  V₁ = 10.0 L
  •  T₁ = 25°C = 25 + 273.15 K = 298.15 K
  •   P₁ = 98.7 Kpa
  •   T₂ = 20°C = 20 + 273.15 K = 293.15 K
  •    P₂ = 102.7 KPa
  •    V₂ = ?

<u>2) Formula:</u>

Used combined law of gases:

  •    PV / T = constant

  •    P₁V₁ / T₁ = P₂V₂ / T₂

<u>3) Solution</u>:

Solve the equation for V₂:

  •    V₂ = P₁V₁ T₂ / (P₂ T₁)

Substitute and compuite:

  • V₂ = P₁V₁ T₂ / (P₂ T₁)

  • V₂ = 98.7 KPa × 10.0 L × 293.15 K / (102.7 KPa × 298.15 K)

  • V₂ =  9.4 liter ← answer

You can learn more about gas law problems reading this other answer on Brainly: brainly.com/question/12732788.

5 0
3 years ago
What is going on in the hexane layer at the end of the group i anion experiment?
mafiozo [28]

Answer:The Hexane layer test is used here for the confirmation of Bromide and Chloride ion. In the test, HNO3 is added to make the solution little acidic.

Explanation:

8 0
3 years ago
Assume that in each pair of compounds be- low the type of crystal structure is similar. Consider the strength of the attractive
bixtya [17]
The answer is three or two I'm pretty sure
5 0
3 years ago
Measure the diameter of the circle using Ruler A and Ruler B.Given that the actual diameter of the circle is 2.264 cmcm, classif
leva [86]

Answer:

<u>Ruler A :</u>

According to ruler A, the diameter of the circle has only one certain digit and one uncertain digit. if we look at measurement of a diameter, it contain two significant figures. so the certainty  of the diameter measurement is <em>smaller. </em>

<u>Ruler B :</u>

According to ruler B, the certainty  of the diameter measurement is <em>greater. </em>because it contain two certain and one uncertain digit. it has three significant figures.

5 0
3 years ago
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