The mass of the aluminum sulfide, Al₂S₃, that can be produced from the reaction is 14.16 g
<h3>How to determine the mole of Al(NO₃)₃</h3>
- Volume = 125 mL = 125 / 1000 = 0.125 L
- Molarity of Al(NO₃)₃ = 1.51 M
Mole = Molarity x Volume
Mole of Al(NO₃)₃ = 1.51 × 0.125
Mole of Al(NO₃)₃ = 0.18875 mole
<h3>How to determine the mole of Al₂S₃ produced </h3>
Balanced equation
2Al(NO₃)₃ + 3(NH₄)₂S → Al₂S₃ + 6NH₄NO₃
From the balanced equation above,
2 moles of Al(NO₃)₃ reacted to produce 1 mole of Al₂S₃
Therefore,
0.18875 mole of Al(NO₃)₃ will react to produce = 0.18875 / 2 = 0.094375 mole of Al₂S₃
<h3>How to determine the mass of Al₂S₃ produced </h3>
- Mole of Al₂S₃ = 0.094375 mole
- Molar mass of Al₂S₃ = (27×2) +(32×3) = 150 g/mol
Mass = mole × molar mass
Mass of Al₂S₃ = 0.094375 × 150
Mass of Al₂S₃ = 14.16 g
Learn more about stoichiometry:
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<h3><u>Answer;</u></h3>
0.227 M
<h3><u>Explanation;</u></h3>
Volume of HCl = 25.5 mL or 25.5 / 1000 => 0.0255 L
Molarity or concentration of NaOH = 0.113 M
Volume of NaOH = 51.2 mL / 1000 = 0.0512 L
Number of moles NaOH:
Moles = Molarity x Volume
= 0.113 x 0.0512
= 0.0057856 moles of NaOH
From the equation we can obtain the mole ratio:
HCl + NaOH = NaCl + H2O
1 mole HCl : 1 mole NaOH
Therefore;
Moles of HCl : 0.0057856 moles NaOH
Hence; moles of HCl = 0.0057856 x 1 / 1
= 0.0057856 moles of HCl
Molarity of HCl = moles of HCL / Volume of HCl
M = 0.0057856 / 0.0255
= 0.227 M
Answer:
Pitch:it refers to the highest and lowness of a sound.
Wavelength: It is the distance measured from one crest to another, or from one trough to another.
Refraction of Light: The light bends as it travels from one medium to another.
Reflection of Light: It happens when light bounces back after hitting a well-polished surface.
Crest: The highest point of the wave from the center.
<u>I hope this helps! :)</u>
Balanced equation :
Fe2(SO4)3 + 3Pb(ClO4)2 → 2Fe(ClO4)3 + 3PbSO4
<h3>Further explanation</h3>
Given
Word equation
Required
Balanced equation
Solution
Chemical equations can be expressed in terms of:
- word equation
- skeleton equation
- balanced equation
Word equation :
a solution of iron 3 sulfate and a solution of lead 2 perchlorate react to produce lead 2 sulfate precipitate
Skeleton equation :
Fe2(SO4)3 + Pb(ClO4)2 → Fe(ClO4)3 + PbSO4
Balanced equation :
Fe2(SO4)3 + 3Pb(ClO4)2 → 2Fe(ClO4)3 + 3PbSO4
The student would fill out the second row, stating that the volume increases as the temperature increases.
This phenomenon is in accordance with Charles's law, which states that for a fixed amount of gas at a constant pressure, the volume of the gas is directly proportional to the absolute temperature of the gas. All three of the gas laws are combined to form the ideal gas law.
