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How many atoms of carbon are present in 34.5 g of caffeine C8H10N4O2?
Wiki User
∙ 11y ago
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.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoThe molar mass of caffeine is 194.19g/mole.
0.00100mol caffeine X (194.19g/mol) = 0.19419g caffeine
Wiki User
∙ 13y agoMolecular mass of caffeine = 194 g/mol.
mol = mass/molecular mass;
so mass = mol*molecular mass.
Therefore, the mass of 0.0150 mol of caffeine = 0.0150*194 = 2.91 g
Wiki User
∙ 10y ago0.00100(mol) * 194.19(g/mol) = 194 mg = 0.194 gram caffeine
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How many hydrogen atoms in one molecule of caffeine?
Caffeine is C8H10N4O2 and has 10 hydrogen atoms.
How many carbon atoms in an isocitrate?
Citrate is a C6 compound i.e. there are 6 carbon atoms present in Citrate.
State the number and types of atoms present in carbon tetrachloride?
In carbon tetrachloride molecule,four atoms of chlorine are present.
How many number of carbon atoms are present in 0.062 mol acetic acid HC2H3O2?
The number of carbon atoms which are present in 0,062 mol acetic acid HC2H3O2 is 0,747.10e23.
How many C-13 atoms are present on average in a 13000-atom sample of carbon?
Carbon-13 make up 1.1% of carbon atoms. .011 x 19000 carbon atoms = 209 carbon-13 atoms present.
What are the type of atoms in caffeine?
C8H10N4O2 - Carbon, Hydrogen, Nitrogen, and Oxygen make up caffeine.
One molecule of caffeine contains 8 atoms of carbon 8 atoms of hydrogen 2 atoms of oxygen 4 atoms of nitrogen whats the formula for caffeine?
C8H10N4O2 Caffeine actually has 10 hydrogen atoms.
How many hydrogen atoms in one molecule of caffeine?
Caffeine is C8H10N4O2 and has 10 hydrogen atoms.
How many nitrogen atoms are in a molecule of C8H10N4O2?
There are four nitrogen atoms in this compound (C8H10N4O2).
How many atoms are present in a single molecule C8H10N4O2?
The subscripts in a chemical formula representing a single molecule, are the numbers of atoms of each atom in one molecule (remember no subscript is understood to be 1. So add the subscripts to get the total number of atoms in one molecule of a substance. 8+10+4+2=24 atoms in a single molecule of C8H10N4O2.
Is there carbon atoms in a pickle?
Naturally. Carbon atoms are present in everything that are organic or are organic derivatives. In any substance obtained from plants or animals, carbon atoms are naturally present.
What atoms are in hydrocarbon?
There are carbon and hydrogen atoms present in hydrocarbons.
How many carbon atoms in an isocitrate?
Citrate is a C6 compound i.e. there are 6 carbon atoms present in Citrate.
How many atoms of carbon are present in a molecule of carbon tetrafluoride?
A carbon tetrafluoride molecule has one carbon atom and four fluorine atoms.
How many atoms of carbon are present in 2.85 moles of carbon?
There are 6.022 x1023 atoms of carbon per mole. So 2.85 * 6.022x1023 is the answer ... 1.72 x1024 atoms of carbon.
Which common atoms are present in present?
Carbon, Hydrogen, Oxygen and Nitrogen.
How many bonds are in caffeine?
There are 29 bonds in caffeine! How did I get my answer? The chemical formula for caffeine is C8H10N4O2 1. Count total octet electrons 64+20+32+16=132 2. Count the # of valence electrons in the molecule. 32+10+20+12=74 3. Subtract valence electrons from octet electrons 132-74=58 4. Divide the bonding electrons by 2 to find the number of bonds. 58/2=29
