Hey there!:
Detailed solution is shown below ask if any doubt :
Answer:
Aluminium was named after alum, which is called 'alumen' in Latin. This name was given by Humphry Davy, an English chemist, who, in 1808, discovered that aluminium could be produced by electrolytic reduction from alumina (aluminium oxide), but did not manage to prove the theory in practice.
Explanation:
Answer:
- 602 mg of CO₂ and 94.8 mg of H₂O
Explanation:
The<em> yield</em> is measured by the amount of each product produced by the reaction.
The chemical formula of <em>fluorene</em> is C₁₃H₁₀, and its molar mass is 166.223 g/mol.
The <em>oxidation</em>, also know as combustion, of this hydrocarbon is represented by the following balanced chemical equation:
![2C_{13}H_{10}+31O_2\rightarrow 26CO_2+10H_2O](https://tex.z-dn.net/?f=2C_%7B13%7DH_%7B10%7D%2B31O_2%5Crightarrow%2026CO_2%2B10H_2O)
To calculate the yield follow these steps:
<u>1. Mole ratio</u>
![2molC_{13}H_{10}:31molO_2:26molCO_2:10molH_2O](https://tex.z-dn.net/?f=2molC_%7B13%7DH_%7B10%7D%3A31molO_2%3A26molCO_2%3A10molH_2O)
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<u>2. Convert 175mg of fluorene to number of moles</u>
- Number of moles = mass in grams / molar mass
<u>3. Set a proportion for each product of the reaction</u>
a) <u>For CO₂</u>
i) number of moles
![2molC_{10}H_{13}/26molCO_2=0.0010528molC_{10}H{13}/x](https://tex.z-dn.net/?f=2molC_%7B10%7DH_%7B13%7D%2F26molCO_2%3D0.0010528molC_%7B10%7DH%7B13%7D%2Fx)
![x=0.0010528molC_{10}H_{13}\times 26molCO_2/2molC_{10}H_{13}=0.013686molCO_2](https://tex.z-dn.net/?f=x%3D0.0010528molC_%7B10%7DH_%7B13%7D%5Ctimes%2026molCO_2%2F2molC_%7B10%7DH_%7B13%7D%3D0.013686molCO_2)
ii) mass in grams
The molar mass of CO₂ is 44.01g/mol
- mass = number of moles × molar mass
- mass = 0.013686 moles × 44.01 g/mol = 0.602 g = 602mg
b) <u>For H₂O</u>
i) number of moles
![0.0010528molC_{10}H_{13}\times10molH_2O/2molC_{10}H_{13}=0.00526molH_2O](https://tex.z-dn.net/?f=0.0010528molC_%7B10%7DH_%7B13%7D%5Ctimes10molH_2O%2F2molC_%7B10%7DH_%7B13%7D%3D0.00526molH_2O)
ii) mass in grams
The molar mass of H₂O is 18.015g/mol
- mass = number of moles × molar mass
- mass = 0.00526 moles × 18.015 g/mol = 0.0948mg = 94.8 mg
Answer:
F = 50 N
Explanation:
Given data:
Mass of car = 250 Kg
Acceleration of car = 0.20 m/s²
Force required = ?
Solution:
Formula:
F = m×a
F = applied force
m = mass
a = acceleration
Now we will put the values in formula.
F = 250 Kg × 0.20 m/s²
F = 50 Kg.m/s²
Kg.m/s² = N
F = 50 N
1.24973017189471 is probably the answer to your equation