Answer: Mass Of CFC that needs to evaporate for the freezing of water = 328.24 g
Explanation: Heat gained by the CFC = Heat lost by water
Heat lost by water = Heat required to take water's temperature to 0°c + Heat required to freeze water at 0°c
Heat required to take water's temperature from 33°c to 0°c = mCΔT
m = 201g, C = 4.18 J/(gK), ΔT = 33
mCΔT = 201 × 4.18 × 33 = 27725.94 J
Heat required to freeze water at 0°c = mL
m = 201g, L = 334 J/g
mL = 201 × 334 = 67134 J
Heat gained by CFC to vaporize = mH = 27725.94 + 67134 = 94859.94 J
H = 289 J/g, m = ?
m × 289 = 94859.9
m = 328.24 g
QED!!
Answer:
An x-ray detector, because x-rays are produced due to high energy collision of electrons
Explanation:
In order to check if metals are present in a given rock sample, different types of equipment are used. Example of such equipment is an x-ray detector. These x-rays are usually created when the direction of fast-moving electrons are changed as a result of their collision with a metal in a given rock sample. Thus, the best type of equipment that the metallurgical student could use to check if metals are present in a given rock sample is the x-ray detector.
An arrangement of electrons that tells us how many total electrons are in an atom or ion as well as the outermost is called Electronic configuration.
<h3>What is electronic configuration?</h3>
Electronic configuration is the arrangements of electrons in the orbitals of an atoms and this shows the total number of atoms present in the atoms orbits and it shows the different energy levels around an atomic nucleus.
Therefore, An arrangement of electrons that tells us how many total electrons are in an atom or ion as well as the outermost is called Electronic configuration.
Learn more about electronic configuration below.
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Answer:
1.053×10²⁴ atoms of gold
Explanation:
Hello,
Gold nugget are usually the natural occurring gold and they contain 85% - 90% weight of pure gold.
In this question, we're required to find the number of atoms in 344.75g of a gold nugget.
We can use mole concept relationship between Avogadro's number and molar mass.
1 mole = molar mass
Molar mass of gold = 197 g/mol
1 mole = Avogadro's number = 6.022 × 10²³ atoms
Number of mole = mass / molar mass
Mass = number of mole × molar mass
Mass = 1 × 197
Mass = 197g
197g is present in 6.022×10²³ atoms
344.75g will contain x atoms
x = (344.75 × 6.022×10²³) / 197
X = 1.053×10²⁴ atoms
Therefore 344.75g of gold nugget will contain 1.053×10²⁴ atoms of gold
The organism would no longer grow.