The answer is Latitude (B)
Answer:
285g of fluorine
Explanation:
To solve this problem we need to find the mass of Freon in grams. Then, with its molar mass we can find moles of freon and, as 1 mole of Freon, CCl₂F₂, contains 2 moles of fluorine, we can find moles of fluorine and its mass:
<em>Mass Freon:</em>
<em>2.00lbs * (454g / 1lb) = </em>908g of Freon
<em>Moles freon -Molar mass: 120.91g/mol- and moles of fluorine:</em>
908g of Freon * (1mol / 120.91g) =
7.5 moles of freon * (2moles Fluorine / mole Freon): 15 moles of fluorine
<em>Mass fluorine -Atomic mass: 19g/mol-:</em>
15 moles F * (19g / mol) =
<h3>285g of fluorine</h3>
The heat of reaction is 1.8 KJ. A calorimeter is a device used in calorimetry, a procedure for calculating heat capacity and measuring the heat of chemical processes or other physical changes.
<h3>How to calculate calorimeter?</h3>
- A calorimeter is a device used in calorimetry, a procedure for calculating heat capacity and measuring the heat of chemical processes or other physical changes.
- Among the most popular kinds are differential scanning calorimeters, isothermal micro calorimeters, titration calorimeters, and accelerated rate calorimeters.
- Calorimeter, a tool for estimating a material's heat capacity and measuring the heat produced during a mechanical, electrical, or chemical reaction. bomb thermometer.
Volume of water = 67.9 mL
Since the density of water is 1.00 g/mL
Density = mass/volume
Mass of water = Density × volume
Mass of water = 1 g/mL × 67.9 mL
Mass of water = 67.9g or 0.0679 Kg
Temperature change = 6.5 oC
Specific heat capacity of water= 4.184 J/Kg
From;
H = mcθ
m = mass of water
c = heat capacity of water
θ = temperature rise
Substituting values;
H = 0.0679 Kg × 4.184 J/Kg × 6.5 oC
H = 1.8 KJ
To learn more about calorimeter refer to:
brainly.com/question/1407669
#SPJ4
Answer: option (A)
Explanation: The convection current is generates in the mantle due to the heat radiated from the core of the earth. Due to this convection current, the lithospheric plates moves as the upper part of the mantle known as the asthenosphere, is the region which is viscous in nature and drives the plates to move. This is a repeating cycle that constantly forces the plates to move.
Thus the correct answer is option (A).
