Answer:
4.15×10⁻²¹ moles of Sn
Explanation:
This question can be solved by a simple rule of three.
We know that 1 mol contains 6.02×10²³ particles.
In this case, our particles are the atoms, so:
6.02×10²³ atoms / 1 mol . 2500 atoms = 4.15×10⁻²¹ moles.
The knowledge of mol can be applied for everything:
A mol of molecules
A mol of atoms
A mol of a compound
Answer:
psoriasis is a chronic relapsing condition affecting skin,nails and joints that most commonly present with well demarcated erythematous papules and plaques with silvery white scales
Answer:
The product formed is orthonitrophenol
Explanation:
The compound orthonitrophenol is formed when ortho-bromonitrobenzene is treated with NaOH at elevated temperature.
The reaction leads to the formation of an intermediate stabilized by resonance. This intermediate can not be formed by the meta isomer because a resonance stabilized intermediate can not be formed and the product is not stabilized by intramolecular hydrogen bonding hence this reaction will not occur.
An approximate representation of the motion of the moon around the earth. Moving once around in 27.3 days, its average movement is about 13.2 degrees per day, or 92 degrees per week.
Answer: D
Explanation: When neutrons are required for transmutation reactions, they are usually ... Plutonium is now mostly formed in nuclear reactors as a byproduct during the decay ... If this process continues, a nuclear chain reaction occurs.