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KATRIN_1 [288]
4 years ago
6

I don’t know what this is this was a mistake?

Chemistry
1 answer:
umka21 [38]4 years ago
6 0
What do you mean? Do you need help with something?
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Complete combustion of 2.0 metric tons of coal to gaseous carbon dioxide releases 6.6X10¹⁰ J of heat. Convert this energy to
Taya2010 [7]

First of all we should know that, 1 Joule = 0.000239 kilocalories.

So, 6.6×10^{10} J = 6.6×10^{10} × 0.000239 kilocalories

      6.6×10^{10} J = 15774000 kilocalories

                       = 1.58 × 10^{7} kilocalories

One joule is described as the quantity of electricity exerted when a pressure of 1 newton is implemented over a displacement of 1 meter. Within the SI machine, the unit of labor or electricity is the Joule.

The kilocalorie, or meals calorie, is the quantity of warmth required to elevate one kilogram of water 1 °C. warmness capability is the amount of heat required to raise one gram of material 1 °C beneath steady pressure. A kilocalorie is the amount of warmth required to raise the temperature of 1 kilogram of water one diploma Celsius.

Learn more about joule here:-

brainly.com/question/490326

#SPJ4

6 0
2 years ago
A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of wate
mariarad [96]

Answer: The density of silver metal will be 10.50g/ml[\tex]Explanation:Density is defined as the mass contained per unit volume.[tex]Density=\frac{mass}{Volume}

Given : Mass of silver = 194.3 grams

Volume of silver= volume of water displaced= 260.5-242.0=18.5mltex]Putting in the values we get:[tex]Density=\frac{194.3g}{18.5ml}=10.50g/ml/tex]Thus density of silver metal will be [tex]10.50g/ml

6 0
3 years ago
Read 2 more answers
Question 4
vitfil [10]
50.0ml is the answer nacho
8 0
3 years ago
Read 2 more answers
What is the density of a mineral with a mass of 41.2 g and a volume of 8.2 cm?
iragen [17]
Hey there!:
mass = 41.2 g
Volume = 8.2 cm³
Therefore:
D = m / V
D = 41.2 / 8.2
D = 5.02 g/cm³
8 0
3 years ago
The heat of vaporization of carbon tetrachloride (CCl4) is 197.8 J/g. How much energy is absorbed by 1.35 mol CCl4 when it vapor
const2013 [10]

Energy absorbed from changing the phase of a substance from the liquid phase to gas phase can be calculated by using the specific latent heat of vaporization. Calculation are as follows:

 

<span> Energy = 1.35 mol  CCl4 ( 153.81 g / 1 mol ) x 197.8 J/g </span>

 

<span>Energy = 41071.88 J</span>

5 0
3 years ago
Read 2 more answers
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