Answer:
Let's do it like this...
The question says write a balanced equation for the reaction between aqueous lead(II) nitrite and aqueous potassium chloride to form solid lead(II) chloride and aqueous potassium nitrite...
Analysising
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Aqueous Lead(II) Nitrate written as a Formula is Pb(NO3)2 and Aqueous potassium written as a Formula is KOH.......and.......here the statement says they form Solid lead(ll) chloride which is PbCl₂ and aqueous potassium nitrite which is KNOH3
so The unbalanced equation will be
Pb(NO3)2 + KCL ====> PbCl2 + KNOH3
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New Balanced Equation
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Pb(NO3)2 + 2KCL ====> PbCl2 + 2KNOH3
(Balanced) RHS = LHS
Explanation:
Balancing The Equation
Lead (Pb) Has a coefficient of 1 both side.(Balanced)
Nitrate (NO3) has 2 as their coefficient both sides. (balanced)
Potassium (K) has a coefficient of 2 in the left so in the right. (balanced)
Chlorine (Cl) has also a coefficient of 2 in the right so in the left. (balanced)
Therefore the equation is balance the LHS equals to the RHS
NB : There's no any balanced equation than this
The specific heat of silver is calculated as below
Q(heat) = M(mass) xC(specific heat capacity)
Q= 42.8 j/c
M=181 g
C=?
by making C the subject of the formula
C= Q/M
C= 42.8 j/c/181 g =0.236j/g/c
Answer:- 5.91%
Solution:- The given balanced equation is:
From given moles of zinc iodide we calculate the moles of zinc carbonate using mol ratio from the balanced equation and the moles are converted to grams on multiplying by molar mass.
=
Molar mass of zinc carbonate is 125.38 gram per mol. Let's multiply the moles by molar mass to get the theoretical yield:
=
theoretical yield is 213.15 g and the actual yield is given as 12.6 g.
percent yield =
percent yield =
= 5.91%
The percent yield of zinc carbonate is 5.91%.
The Answer you are looking for is true
Answer:
The heat of reaction is 4938 kJ/mole
Explanation:
It is possible to calculate the heat of a reaction using:
For the reaction:
C₁₂H₂₂O₁₁ (s) + 12 O₂ (g) → 12 CO₂ (g) + 11 H₂O (l)
Specific heat: 7,50kJ/°C
dT = 20,2°C
Thus, q = 151,5 kJ
The moles of sucrose are: 10,5g /342,2965 g/mol = 0,030675 moles
The heat of reacton is:
I hope it helps!