0
What is the mass in gram of one molecule of caffeine (C8H10N402)?
Wiki User
∙ 6y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How many atoms of carbon are present in 34.5 g of caffeine C8H10N4O2?
Step 1: what's the molar mass of caffeine? Using the periodic table, 12(8)+1(10)+14(4)+16(2)=194 g/mol. Step 2: given 34.5 grams, how many moles is that? 34.5/1=194/x; solve for x to get 0.18 moles caffeine. Step 3: how many molecules of caffeine is that? 0.18 moles times Avogadro's constant; 0.18(6.02x1023)=1.08x1023 molecules. Step 4: how many carbon atoms is that? Formula says 8 carbon atoms per molecule; 8(1.08x1023)=8.64x1023 carbon atoms. This wasn't too hard because you didn't have to change up the scientific notation at all. Just watch your proper scientific notation format in you do have to change it.
What the mass percent composition of an element in a molecule?
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
What is the mass percent composition of an element in a molecule?
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
How many atoms of Carbon are in 1.0 g of C14H9Cl15?
If the compound stated in the question exists, its gram molecular mass is (14 times the gram atomic mass of carbon) plus (9 times the gram atomic mass of hydrogen) + (15 times the gram atomic mass of chlorine), or about 709 grams. Therefore, the number of molecules of the compound in 1.0 gram of it is (1.0)(Avogadro's number)/709 or about 8.49 X 1020. Each molecule contains 14 (exact) carbon atoms, for a total of 1.2 X 1022 atoms of carbon, to the justified number of significant digits.
What is the gram formula for K2SO3?
The gram formula mass is 158.3
What is the gram molecular mass of sulfur molecule?
The molecular mass of a sulfur molecule is 32 g.
What is the mass of a single molecule of water?
- calculate the molecular mass of the substance from the atomic weights of the contained elements - 1 molecule gram of any substance contain 6,023 141 79.1023 molecules (Avogadro number) - mass of a single molecule is: Molecular mass in grams/Avogadro number
What would be the unit to use to measure a single molecule?
the term gram molecule was used in chemistry and this unit is used to measure a single molecule in gram molecule.
What is the gram molecular mass of phosphorous?
The atomic mass of phosphurus is 31. The atomic mass of chlorine is 35.5. Therefore, the gram molecular mass of PCl3 is 31+3x35.5=137.5 grams per mole.
Is a gram part of mass?
A gram is a unit of mass.
What is relative atomic mass and how it is related with gram?
when atomic mass of an element expressed in gram atom is called gram atom mass . and formula is number of gram atom=given mass (in gram) by atomic mass ( in gram )
How many atoms of carbon are present in 34.5 g of caffeine C8H10N4O2?
Step 1: what's the molar mass of caffeine? Using the periodic table, 12(8)+1(10)+14(4)+16(2)=194 g/mol. Step 2: given 34.5 grams, how many moles is that? 34.5/1=194/x; solve for x to get 0.18 moles caffeine. Step 3: how many molecules of caffeine is that? 0.18 moles times Avogadro's constant; 0.18(6.02x1023)=1.08x1023 molecules. Step 4: how many carbon atoms is that? Formula says 8 carbon atoms per molecule; 8(1.08x1023)=8.64x1023 carbon atoms. This wasn't too hard because you didn't have to change up the scientific notation at all. Just watch your proper scientific notation format in you do have to change it.
If you have one gram of cotton and one gram of steel which has the greater mass?
They have the same mass as a gram is a unit of mass.
What is the gram molecular mass of H2SO4?
The relative molecular mass of sulfate ion is 96. Sulfuric acid molecule has two protons attached to it. Therefore the GMM of sulfuric acid is 98g.
What are SI units for mass?
The Kilogram is the unit of mass, not the gram gram
How much does a gram weigh in mass?
The gram already is a unit of mass.
Mass of 0.00100 mol of caffeine?
The formula for caffeine is C8H10N4O2 and its molar mass is 194.19g/mole. 1mol caffeine = 194.19g 0.00100mole caffeine X (194.19g/1mole) = 0.19419g caffeine
