0
How many H atoms are present in a 5.905g sample of styrene?
Alexcol2006
C6H5CH=CH2 ( looks like 8 H in molecule; let's see H atoms in given mass )
5.905 grams C6H5CH=CH2 (1 mole C6H5CH=CH2/104.144 grams)(8 mole H/1 mole C6H5CH=CH2)(6.022 X 10^23/1 mole H)
= 2.732 X 10^23 atoms of hydrogen in that mass styrene
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How many moles are present in a sample of 3.2x10 atoms of nickel?
A sample of 3,2x10 atoms of nickel is equal to 0,53.10e-23 moles.
How many moles of silver (Ag) are present in a sample of 3.8 10 to the power of twenty four atoms Ag?
The answer is 6,31 moles Ag.
What fraction of the radioactive atoms currently present will be left after four minutes if a sample of gas has a half life of two minutes?
200
How many Ag atoms are there in a 88.1 gram sample of Ag?
A 88,1 gram sample of Ag contain 4,9185.10e23 atoms.
A sample of water contains 3.6 moles of hydrogen atoms How many molecules of water are present in this sample?
3.6 moles hydrogen atoms (1 mole water/2 mole H)(6.022 X 1023/1 mole water molecules) = 1.1 X 1024 molecules of water =======================
How many atoms are present in a 15 mol sample of uranium?
Approx. 9.1024 atoms.
What is the number of atoms present in a 20 gram sample of Lithium?
1.7-10^24
How many hydrogen atoms are in 5.839 grams of styrene?
How_many_hydrogen_atoms_are_in_5.839_grams_of_c8h8Same question answered.
What elements go with sodium to make bromine?
Bromine is an element, and no other kinds of atoms or elements are present with it, in a pure sample.
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.
How many moles are present in a sample of 3.2x10 atoms of nickel?
A sample of 3,2x10 atoms of nickel is equal to 0,53.10e-23 moles.
How many moles of silver (Ag) are present in a sample of 3.8 10 to the power of twenty four atoms Ag?
The answer is 6,31 moles Ag.
What fraction of the radioactive atoms currently present will be left after four minutes if a sample of gas has a half life of two minutes?
200
According to Dalton how do the atoms from one sample of the element carbon compare to the atoms of another sample of carbon?
They are identical.
How many Ag atoms are there in a 88.1 gram sample of Ag?
A 88,1 gram sample of Ag contain 4,9185.10e23 atoms.
How many atoms of aluminum are there in a sample of aluminum sulfide with a mass of 100 g?
Aluminum sulfide has a molar mass of 150.16 grams per mole. This means there are 0.666 moles present, or 4.01 E23 molecules. Each molecule of Al2S3 has 2 aluminum atoms, so there are 8.02 E23 atoms of aluminum present.
Which sample contains the greatest number of atoms a sample of Mn that contains 3.29E plus 24 atoms or a 5.18 mole sample of you?
Which sample contains the greatest number of atoms. A sample of Mn that contains 3.29E+24 atoms or a 5.18 mole sample of I?The sample of _____ contains the greatest number of atoms.Answer:In order to compare the two samples, it is necessary to express both quantities in the same units. Since the question was phrased in terms of atoms, it is convenient to convert moles of I to atoms of I.The conversion factor between atoms and moles is Avogadro's number: 6.02 x 1023 "things" / molTo convert 5.18 moles of I to atoms of I:atoms I= 5.18 mol I6.02 x 1023 atoms I = 3.12E+24 atoms I1 mol IMultiply by atoms per mole. Moles cancel out.The sample of Mn contains 3.29E+24 atoms.Since 3.12E+24 is smaller than 3.29E+24, the sample of Mn contains the greatest number of atoms.
