No of moles of Carbon, C = mass/ molar mass.
Molar mass of carbon = 12.0107. We only have to calculate the no of moles
of carbon to obtain carbon's mass. .
From Sucrose chemical formula C12H22O11 we know that there are 12
carbon atoms.
So there are 1.4x10^(20) x12 = 16.8 x 10^20 carbon atoms.
We will use avogardo's number to find out the number of carbon molecules
in the compound.
From Avogadro's no. One mole of any substance equals to 6.022140857
atoms.
So X mole contains 16.8 * 10^(20) carbon atom
(16.8x10^20 carbon atoms)/6.022 x10^23 particles/mol = 0.00279 mols
The molar mass of carbon is 12.0107g/mol so we'll multiply to get the mass:
0.00279 mols x 12 = 0.03348.
The answer would be, "Today is cloudy, but tomorrow will be clear and sunny." The rest are examples of climate change, which is spanned over 30+ years, weather is on a day-to-day basis
Circulatory and respiratory
Is this true or false? the answer is false
Answer:
Option B. 0.285m NaCl
Explanation:
To find the molality, first let find the number of mole of NaCl in the solution. This is illustrated below
Molar Mass of NaCl = 58.5 g/mol
Mass of NaCl = 10g
Number of mole of NaCl = Mass of NaCl / molar Mass of NaCl
Number of mole of NaCl = 10/58.5 = 0.1709mol
Mass of water = 600g = 600/1000 = 0.6kg
Molality = mole of solute / mass of solvent
Molality = 0.1709mol/0.6kg
Molality = 0.285mol/Kg
