Answer:
The positive charge in carbon is C
Explanation:
Atomic weight: An atom consists of protons, neutrons and electrons. Atomic mass is the sum of the number of protons and neutrons. The average weight of mass is called atomic mass of that atom.
The positive charge of an atom is proton.
The atomic weight of carbon = 12.0107 g/mol
Avogadro's number = 6.023×10⁻²³ atom/ mol
Charge = 1.602×10⁻¹⁹ C
The weight of carbon = 0.9 kg = 900 gram
Number of protons in carbon = 6
The positive charge in carbon is
=No. mole× Avogadro's Number× No. proton × charge per proton
C
Molar mass of nitric acid (HNO3) =atomic mass of hydrogen + atomic mass of nitrogen +3x atomic mass of oxygen . The molar mass of nitric acid (HNO3) is 63.0144 gram per mole, but you have 3.4 moles. Therefore; the answer is 63.0144 g/mole x 3.4 moles = 214.24896 grams.
The main function of the digestive system is to break down food and convert the energy from the foods you eat into chemical energy. Without the proper nutrients that we need to function, the food that goes down our stomach would be more difficult to digest, while if you supply your body with the proper nutrients, the digestive process will be much easier :) Hope this helped you.
Answer: The mass of metallic silver produced by a 1.50
amp current passed through a solution of silver nitrate for 20 minutes is 2.0 g
Explanation:
Moles of electron = 1 mole
According to mole concept:
1 mole of an atom contains number of particles.
We know that:
Charge on 1 electron =
Charge on 1 mole of electrons =
To calculate the time required, we use the equation:
where,
I = current passed = 1.50 A
q = total charge = ?
t = time = 20 minutes = 1200 s (1min=60 s)
Putting values in above equation, we get:
According to stoichiometry:
1 mole of electrons deposit = 108 g of silver
i.e 96500 C of electricity deposit = 108 g of silver
Thus 1800 C of electricity deposit = g of silver
The mass of metallic silver is 2.0 g
If you count the methionine expressed for the start codon as part of the precursor protein, then (81+1)*3. (The start codon is expressed, but the stop codon isn't.)