Q&A for How to Convert Grams to Moles

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  • Question
    What is the difference between moles and molecules?
    Community Answer
    1 mole of a substance is gram molecular mass of that substance, which contains 6.022*10^23 constituent particles (i.e. molecules). 1 mole = 6.022*10^23 molecules.
  • Question
    What are the differences in atoms and molecules?
    Community Answer
    Atoms are fundamental elements with 1 nucleus (made up of neutrons and protons), with electrons revolving around the nucleus. Molecules involve bonding between 2+ atoms, so there are 2+ nuclei in a molecule.
  • Question
    How many moles of CO2 are produced when 0.300 moles of C6H12O6 are fermented?
    Community Answer
    C6H12O6 = 2 C2H6O (alcohol) + 2 CO2, Since 0.3 moles of C6H12O6 produce 2 CO2, then we have produced 2 x 0.3 = 0.6 moles of CO2.
  • Question
    How many grams of H2SO4 are present in 0.25 mole of H2SO4?
    Community Answer
    Molar mass of H2SO4 is 98g/mole mass = molar mass.no of moles. 98.0.25 = 24.5 g.
  • Question
    How do I convert milligrams to moles?
    Community Answer
    Divide the milligrams by 1000 to get x/1000 g. Then, divide the grams by molar mass to get (x/1000 g) / (y g/mol). This gives you x/(1000y) mol.
  • Question
    How do I determine the number of moles of phosphoric acid that contain 2.12g of hydrogen atoms?
    Community Answer
    Divide the mass of the hydrogen by its molar mass (1.008), then divide that by the number of hydrogens in phosphoric acid, which is three.
  • Question
    How many moles are present in 64g of oxygen?
    Community Answer
    To find out, you would divide 64 by the molar mass of oxygen, which is close enough to 16. That would leave you with 64/16, which is 4.
  • Question
    How do I calculate the weight of the sample to be taken if its molarity and molecular mass are given?
    Community Answer
    Since moles = grams of compound/the molar mass, to find the mass, you will need to do mass = molar mass x molarity.
  • Question
    How do I convert moles to grams?
    Community Answer
    Find the molar mass first, then multiply it to the given amount of moles.
  • Question
    How do I calculate the number of electrons, protons, and neutrons of something?
    Community Answer
    When you have the element, you can use spur periodic table and the atomic number is the amount of protons, then the electrons is equal to the amount of electrons. Lastly the neutrons you subtract the number of protons from the elements mass number.
  • Question
    How do I calculate the pH of an acid?
    Community Answer
    To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = - log [H3O+].
  • Question
    How do I convert moles to grams?
    Community Answer
    Mass= no.moles*molecular mass. So if you want to convert moles to grams you have to multiply the number of moles by molecular mass. For example if you want to find the mass of 2g of H2O. First you find the molecular mass of H2O which is 18 as there is 2 atoms of hydrogen and 1 atom of oxygen. The atomic mass of hydrogen is 1 and the atomic mass of oxygen 16. (2*1)+16=18. Mass of H2O= 2*18= 36 g of H2O.
  • Question
    How do i find the number of H atoms in C3H6O?
    Hannah
    Community Answer
    It is stated in the chemical formula: C3H6O contains 3 atoms carbon, 6 atoms hydrogen and one atom oxygen.
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