Answer:
18 g
Explanation:
Step 1: Write the balanced equation
2 Al + 6 HCl ⇒ 2 AlCl₃ + 3 H₂
Step 2: Calculate the moles of Al
The molar mass of Al is 26.98 g/mol.
28.1 g × 1 mol/26.98 g = 1.04 mol
Step 3: Calculate the moles of HCl
46 mL of 1 M HCl react.
0.046 L × 1 mol/L = 0.046 mol
Step 4: Determine the limiting reactant
The theoretical molar ratio of Al to HCl is 2:6 = 0.33:1.
The real molar ratio of Al to HCl is 1.04:0.046 = 22.6:1
According to this, the limiting reactant is HCl.
Step 5: Calculate the mass of AlCl₃ generated from 0.046 moles of HCl
The molar ratio of HCl to AlCl₃ is 6:2. The molar mass of AlCl₃ is 133.34 g/mol.
0.046 mol HCl × 6 mol HCl/2 mol AlCl₃ × 133.34 g AlCl₃/1 mol AlCl₃ = 18 g AlCl₃
The density of zinc is 7.16 g/ml.
Density can be calculated by the formula -
Density = ![\frac{mass}{volume}](https://tex.z-dn.net/?f=%5Cfrac%7Bmass%7D%7Bvolume%7D)
In the given question, the volume of given mass of mossy zinc can be found by finding change in volume of water.
Change in volume = new volume - original volume
Change in volume = 54.6 - 50.0
Performing subtraction to find the change in volume
Change in volume = 4.6 ml
Now, keeping the values in formula to find the density of given mass of mossy zinc.
Density = ![\frac{32.95}{4.6}](https://tex.z-dn.net/?f=%5Cfrac%7B32.95%7D%7B4.6%7D)
Performing division to find the density of given mass of mossy zinc
Density = 7.16 g/ml
Hence, the density of mossy zinc is 7.16 g/ml.
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In general, the given alcohol above belongs to tertiary, and this is the reason why it doesn't undergo oxidation. Now, if you will try to analyze the given molecular formula, you will end up having seven (7) carbon atoms which make up a chiral carbon. So the answer would be option C. Hope that answer helps.
Landslides happen when it rains making the ground heaver and more likeable to a landslide.
Elemental sulfur occurs as octatomic molecules, 63.2 g F2 are needed to react completely with 17.8 g S8 to produce SF6 .
<h3>What is octatomic molecules?</h3>
When stable under normal temperature and pressure circumstances, an octatomic element is a chemical element that has eight atoms arranged in a group. Sulfur, symbol S8, is the classic example, but red selenium is also an octatomic element that is stable at ambient temperature.
A molecule with eight sulfur atoms has a puckered ring or crown structure. Sulfur is in an octet state when it contains two more electrons than the six in its outermost shell. Sulfur has an atomic number of 16 and an electrical configuration of 2, 8, 6.
Other elements (S, Se, and Te) exist as octatomic solids while oxygen is a diatomic gas at normal temperature.
To learn more about octatomic molecules from the given link:
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