It has 2 nitrogens. This is because there is 1 nitrogen in the ammonium, and there are two ammonium molecules.
Answer: B(water)
Explanation:
Photosystem II uses energy from light to extract electron from water molecule to fill the hole left as the energized electron passes up the chain.When the electrons are removed from the water molecules,the water molecule breaks down into oxygen gas,which bubbles away, and hydrogen ions,which are used to power ATP synthesis.
TheThe volume should be added in dilute is 3.24L.
<h3>What is Molarity? </h3>
Molarity is the amount of a substance in a certain volume of solution. It is defined as the moles of solute per litre of a solution.
Molarity = no of moles / Volume (L)
Where the unit of Molarity is M or moles/ L .
We have given here ,
Molarity→5M
Volume →50 ml
Vol2→25.0 ml
weight of the K I is 3.05 g and molar mass of KI is 166 g/ mol.
M1V1=M2V2
M2= no of moles of KI / Volume
M2 = 3.05×1000/ 25×166
M2→ 0.73M
V2→5×50×1000/ 0.73
V2→ 3.24 L
The volume of the solution will be 3.24 L.
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Answer:
Mass = 13.23 g
Explanation:
Given data:
Mass of oxygen = 48.0 g
Mass of propane burn = ?
Solution:
Chemical equation:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
Number of moles of oxygen:
Number of moles = mass/molar mass
Number of moles = 48.0 g/ 32 g/mol
Number of moles = 1.5 mol
now we will compare the moles of propane and oxygen.
O₂ : C₃H₈
5 : 1
1.5 : 1/5×1.5 = 0.3 mol
Mass of propane burn:
Mass = number of moles × molar mass
Mass = 0.3 mol × 44.1 g/mol
Mass = 13.23 g
Amu, or atomic mass unit is used to measure the mass of subatomic particles. but electrons do that have enough mass to be considered 1 amu
