The balanced equation for the reaction is as follows
8SO₂ + 16H₂S ---> 3S₈ + 16H₂O
stoichiometry of SO₂ to H₂S is 8:16
we have been given 77.0 g of each reactant
the reactants react according to molar ratio in other words according to the stoichiometry
8 mol of SO₂ reacts with 16 mol of H₂S
number of SO₂ moles present - 77.0 g / 64 g/mol = 1.20 mol
number of H₂S moles present - 77.0 g / 34 g/mol = 2.26 mol
we need to find the limiting reactant
limiting reactant is fully used up in the reaction
amount of product formed depends on amount of limiting reactant present
if SO₂ is the limiting reactant
if 8 mol of SO₂ reacts with 16 mol of H₂S
then 1.20 mol of SO₂ reacts with - 16/8 x 1.20 mol = 2.40 mol of H₂S
but only 2.26 mol of H₂S are present
which means H₂S is the limiting reactant
then amount of S₈ formed depends on H₂S present
stoichiometry of H₂S to S₈ is 16:3
16 mol of H₂S forms 3 mol of S₈
then 2.26 mol of H₂S forms - 3/16 x 2.26 = 0.424 mol
mass of S₈ formed - 0.424 mol x 256 g/mol = 108.5 g
108.5 g of S₈ is formed
Answer:
Explanation:
NaCl sodium Chloride as ordinary salt
Naf sodium fluoride is used in toothpaste which we use every day
Control is something that remains the same or constant through an experiment. And an experiment group is the group you test the one change on. (Also called the dependent variable)
Answer:
2)HF bcz both fluorine and hydrogen are capable of forming only one covalent bond
Explanation:
flourine is short one electron to become stable while hydrogen has only one electron.Hydrogen cant give out its one electron fully thus it will share its one electron with flourine
Answer: 2,5-dimethyl octane.
Explanation:
The basic rules for naming of organic compounds are :
1. First select the longest possible carbon chain.
2. The longest possible carbon chain should include the carbons of double or triple bonds.
3. The naming of alkane is done by adding the suffix -ane, alkene by adding the suffix -ene, alkyne by adding the suffix -yne and carboxylic acid by adding the suffix -oic acid.
4. The numbering is done in such a way that first carbon of double or triple bond gets the lowest number.
5. The carbon atoms of the double or triple bond get the preference over the other substituents present in the parent chain.
6. If two or more similar alkyl groups are present in a compound, the words di-, tri-, tetra- and so on are used to specify the number of times of the alkyl groups in the chain.
Thus the name for straight chain made of 8 carbons with
groups on the second and fifth carbons will be 2,5-dimethyl octane.