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denis-greek [22]
3 years ago
15

Which is the correct net ionic equation for the following reaction: H3PO4 (aq) + 3 LiOH (aq) > Li3PO4 (aq) + 3 H2O (l)?

Chemistry
2 answers:
suter [353]3 years ago
8 0
1.)H3PO4 (aq) + 3 OH− (aq)<span> > PO4−3 (aq) + 3 H2O (l)
</span>2.)H+ (aq) + OH− (aq) <span>> H2O (l)
hope it helps
</span>

torisob [31]3 years ago
4 0

Answer: The correct option for the chemical equation H_3PO_4(aq.)+3LiOH(aq.)\rightarrow Li_3PO_4(aq.)+3H_2O(l) is 1.

The correct option for the chemical equation 2HBr(aq.)+Co(OH)_2(aq.)\rightarrow CoBr_2(aq.)+2H_2O(l) is 3.

Explanation:

  • For the chemical equation:

H_3PO_4(aq.)+3LiOH(aq.)\rightarrow Li_3PO_4(aq.)+3H_2O(l)

H_3PO_4 is a weak acid and hence will not dissociate into ions whereas LiOH is a strong base and will easily dissociate into ions.

The product Li_3PO_4 is soluble in water and hence, will dissociate into its respective ions. Hence, the ionic equation for this reaction is:

H_3PO_4(aq.)+3Li^{3+}(aq.)+3OH^-(aq.)\rightarrow 3Li^{3+}(aq.)+PO_4^{3-}(aq.)+3H_2O(l)

Net ionic equation becomes:

H_3PO_4(aq.)+3OH^-(aq.)\rightarrow PO_4^{3-}(aq.)+3H_2O(l)

So, the correct option is 1.

  • For the chemical equation:

2HBr(aq.)+Co(OH)_2(aq.)\rightarrow CoBr_2(aq.)+2H_2O(l)

HBr and Co(OH)_2 are strong acid and strong base respectively, hence they will easily dissociate into ions.

The product, CoBr_2 is is soluble in water and hence, will dissociate into its respective ions. Hence, the ionic equation for this reaction is:

2H^+(aq.)+2Br^-(aq.)+Co^{2+}(aq.)+2OH^-(aq.)\rightarrow Co^{2+}(aq.)+2Br^-(aq.)+H_2O(l)

The net ionic equation becomes:

H^+(aq.)+OH^-(aq.)\rightarrow H_2O(l)

So, the correct option is 3.

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•In carrying out an experiment based on this reaction, 2.45 L of dinitrogen tetroxide were used. How many liters of nitrogen dio
lapo4ka [179]
Dinitrogen  tetroxide   decomposes  to   give  nitrogen  dioxide  according  to   equation  below
N2O4--->2NO2
According  to  avogadros law
1 moles  =22.4  l
what  about  2.45 l
=2.45l  x1  mole/22.4=0.1094 moles
by  use  of  reacting  ratio  that  1 :2
the  moles of  No2  =  0.1094  x2=0.2188 moles

1 moles=  22.4 l
what  about  0.2188moles
=(0.2188moles x22.4  l) /1moles=4.90  L
3 0
4 years ago
Zn+2HCl=ZnCl2+H2 How many grams of ZnCl2 will be produced from 26.0 g of Zn and 42.0 g of HCl?
irakobra [83]

53.14 grams of ZnCl_{2}  will be produced from 26.0 g of Zn and 42.0 g of HCl.

Explanation:

Balanced chemical reaction:

Zn + 2 HCl ⇒ ZnCl_{2} +  H_{2}

data given:

mass of Zn = 26 grams

mass of HCl = 42 grams

mass of ZnCl_{2} = ?

here in the reaction Zn is the limiting reagent so mass of

ZnCl_{2} formed will be determined by it.

atomic mass of zinc =65.38 grams/mole

number of moles = \frac{mass}{atomic mass of 1 mole}

putting the values in the above equation:

number of moles of zinc = \frac{26}{65.38}

number of moles of zinc = 0.39 moles

From the balanced reaction it is seen that

1 mole of Zn produced 1 mole of ZnCl_{2}

0.39 moles will produce x moles of ZnCl_{2}

0.39 moles of ZnCl_{2} (atomic mass of  Zn = 65.38 grams/mole)

mass = atomic mass x number of moles

         = 0.39 x 136.28

           = 53.14 grams

53.14 grams of ZnCl_{2} is formed

5 0
3 years ago
Carla is working as a forensic investigator who specializes in specific time of death analysis. She is called into the lab to he
gregori [183]

Answer:

3 p.m most probably.

Explanation:

They found it at Monday 5 pm so its done before that time so its 3 p.m

8 0
3 years ago
True or false? hydrogen gas can be utilized as a fuel source in conventional gasoline engines.
Aleksandr [31]
True :))) hope it helps!
8 0
4 years ago
The elementary reaction 2H20(g)&lt;---&gt;2H2(g)+O2(g) proceeds at a certain temperature until the partial pressures of H2O, H2,
olya-2409 [2.1K]

Answer:

4.9 x 10⁻⁶.

Explanation:

  • For the reaction:

<em>2H₂O(g) ⇄ 2H₂(g) + O₂(g),</em>

'

P of H₂ = 0.002 atm, P of O₂ = 0.006 atm, and P of H₂O = 0.07 atm.

∴ The equilibrium constant (Kp) = (P of H₂)²(P of O₂)/(P of H₂O)² = (0.002 atm)²(0.006 atm)/(0.07 atm)² = 4.9 x 10⁻⁶.

3 0
4 years ago
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