Answer:
Amount remaining = 1.205 * 10²⁴ molecules of urea
Explanation:
The molecular formula of urea is CH₄N₂O. It has a molar mass of 60 g/mol.
Number of moles of urea present in 150 g of urea = mass/molar mass
Number of moles = 150 g/ 60 g/mol = 2.5 moles of urea
I mole of urea contains 6.02 * 10²³ molecules of urea
2.5 moles of urea will contain 2.5 * 6.02 * 10²³ molecules of urea = 1.505 * 10²⁴ molecules of urea
If 3 * 10²³ molecules are removed from 1.505 * 10²⁴ molecules of urea, amount remaining will be:
1.05 * 10²⁴ - 3 * 10²³ = (15.05 - 3) * 10²³ molecules of urea
Amount remaining = 12.05 * 10²³
Amount remaining = 1.205 * 10²⁴ molecules of urea
This philosophy is called determinism. The idea is that every action or behavior at present is an effect of previous action or behavior. It may be compared to cause and effect theorem. There is a variety of determinism philosophy: Causal, Predeterminism, Nominative, Fatalism, nd many others.
Answer:
It is a long neck dinosaur.
Explanation:
Answer:
The basic repeating unit of nucleic acids are known as nucleotides.(cytosine (C), guanine (G), adenine (A), thymine (T) in DNA or uracil (U) instead of T (in RNA), and phosphate.
Explanation:
I hoped this helped. This was the notes I used for my biology test last year
