The number of liters of a gas that would produced at STP is 121.86 Liters
calculation
Step 1 : calculate the moles of hydrogen chloride gas using ideal gas equation
That is PV=nRT where,
P( pressure) = 5100 mm hg
V(volume)= 20.1 L
n(number of moles)= ? moles
R( gas constant) = 62.3636 L.mmhg/mol.K
T( temperature) =29 °C in to kelvin = 29 +273 =302 K
by making n the subject of the formula by diving both side by RT
n= Pv/RT
n=[(5100 mm hg x20.1 L)/(62.3636 l.mmhg/mol.k x 302 K)] =5.44 moles
Step : calculate the liters of a gas at STP
that is at STP
1 moles = 22.4 L
5.44 moles=? L
by cross multiplication
=( 5.44 mole x 22.4 L) / 1 mole =121.86 liters
gas ➡ solid
liquid ➡ gas
solid ➡ gas
Answer: The correct answer is neutrons.
Explanation:
There are 3 subatomic particles that are present in an atom. They are: protons, electrons and neutrons.
Protons carry positive charge and are found inside the nucleus of an atom.
Electrons carry negative charge and are found around the nucleus in the orbits.
Neutrons does not carry any charge and are found inside the nucleus of an atom.
Hence, the correct answer is neutrons.
Answer:
So whats the question?
Explanation:
Answer:
Catabolic reaction.
the salt bridge
c.
the electrolyte solutions
b.
one of the half-cells
d.
the moving electrons
Answer: Option (a) is the correct answer.
Explanation:
In a voltaic cell, salt bridge is used for connecting oxidation and reduction half cells.
The main purpose of using salt bridge in a voltaic cell is that it helps in maintaining electrical neutrality in the internal circuit occurring at anode and cathode of the cell.
Without salt bridge in a voltaic cell there will be imbalance of charges as a result solution in anode compartment will become positively charged whereas solution in cathode compartment will become negatively charged.
Thus, we can conclude that the salt bridge balances charges that may build up as reduction and oxidation occur in a voltaic cell.