Answer:
THE CORRECT ANSWER IS COMMAND.HOPE IT HELP YOU
Answer:
The percent yield of carbon disulfide is 78.8%
Explanation:
Percent yield of reaction = (Produced yield / Theoretical yield) . 100
5C + 2SO₂ --> CS₂ + 4CO
In the reaction 5 moles of C, produce 1 mol of CS₂
40 g / 12 g/m = 3.33 moles
Then, this is the rule of three:
5 mol of C produce 1 mol of CS₂
3.33 moles of C, will produce ( 3.33 .1)/5 = 0.666 moles
Mol . molar mass = mass → 0.666 mol . 76.12 g/m =50.7 g (Theoretical yield)
(40 g / 50.7 g) . 100 = 78.8%
THE COMPLETE QUESTION IS:
Determine whether each cation is acidic or pH-neutral. For those cations that are acidic, write an equation that shows how the cation acts as an acid . a. NH+4 b. Na+ c. Co3+ d. CH2NH+3
Answer:
<em>a. Acidic</em>
<em>b. neutral</em>
<em>c. Acidic</em>
<em>d. Acidic</em>
Explanation:
a. NH4+ + H2O <==> NH3 + H3O+ (NH4+ is a conjugate acid of a weak base. Therefore it is acidic)
b. Neutral. Na+ is a cation of a strong base. Therefore it's pH is neutral.
c. Co(H2O)6³+ + H2O <==>CoH2O5(OH)²+ + H3O+
(Therefore Co+ is a weak acid since hydronium ion is formed.)
d. CH2NH3+ is a conjugate acid of a weak base. Therefore it is acidic.
Answer:
136 neutrons
87 protons
Explanation:
A neutral atom have equal number of protons and neutrons. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The number of protons or number of electrons are the atomic number of an atom while the number of protons and number of neutrons are the mass number of an atom. Every atom consist of nucleus or a positive center. The protons and neutrons are present with in the nucleus while electrons are present out side the nucleus. All these three subatomic particles construct an atom.
Example:
In Francium the number of proton and neutron can be found by subtracting the atomic number of francium from its atomic mass. The atomic number will be the number of protons and remaining will show the total number of neutrons present in nucleus.
Atomic number is 87
Atomic mass 223
223- 87 = 136
So number of neutrons are 136 and number of protons are 87.
