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4 years ago

Bis(bipyridyl)cadmium(II) chloride write the chemical formula

Chemistry

2 answers:

baherus [9]4 years ago

7 0

<u>Answer:</u> The chemical formula for this complex is $[Cd(C_{10}H_8N_2)_2]Cl_2$ or $[Cd(bipy)_2]Cl_2$

<u>Explanation:</u>

2,2'-Bypridine is a bidentate chelating ligand which forms complex with many transition metals. Its chemical formula is $C_{10}H_8N_2$

Bidentate ligands are the ligands which donate two pairs of electrons to the metal atom.

This complex contains two spheres: Primary sphere and secondary sphere

Primary sphere is the sphere which satisfies the primary valency of the metal and the coordination sphere satisfies the secondary valency of the metal known as secondary sphere.

Chlorine is satisfying the primary valency of the metal and bipyridyl is satisfying the secondary valency of the metal.

The chemical formula for this complex is $[Cd(C_{10}H_8N_2)_2]Cl_2$ or $[Cd(bipy)_2]Cl_2$ and its structure is given in the image attached.

GREYUIT [131]4 years ago

3 0

Following are the chemical and structural formulae of said complex compound,

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If 0.0262 mol of cacl2 is dissolved in water to make a 0.520 m solution, what is the volume of the solution?

Oduvanchick [21]

Cacl2 dissolve in water according to the following equation

Cacl2 + H2O = Ca(OH) + Hcl
Volume= moles/molarity
The reacting ratio between CaCl2 to Ca(OH) is 1:1
therefore moles of solution is also 0.0262 moles hence volume is =
0.0262mol/ 0.52mol/l = 0.0504L or50.4ml

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3 years ago

What reaction is C+O2=CO2

slamgirl [31]

Answer:

Combination or synthesis

Explanation:

The reaction given below:

C + O₂ → CO₂

The reaction above is termed a synthesis or combination reaction because two substances are combining to give a product.

A synthesis reaction involves the formation of a single product from two or more reactants.
The driving force for such reaction is the large and negative heat of formation of the product.

5 0

3 years ago

Hecking skills activated

artcher [175]

Answer:

yes 34

Explanation:

4/13 =0.307

7 0

3 years ago

Read 2 more answers

What is the ph of 0.450 m al(no3)3 [ka for al3+(aq) = 1.00x10-5]? express your answer to two decimal places?

White raven [17]

Answer : The pH of the solution is, 2.67

Explanation :

The equilibrium chemical reaction is:

$Al^{3+}+H_2O\rightarrow Al(OH)^{2+}+H^+$

Initial conc. 0.450 0 0

At eqm. (0.450-x) x x

As we are given:

$K_a=1.00\times 10^{-5}$

The expression for equilibrium constant is:

$K_a=\frac{(x)\times (x)}{(0.450-x)}$

Now put all the given values in this expression, we get:

$1.00\times 10^{-5}=\frac{(x)\times (x)}{(0.450-x)}$

$x=0.00212M$

The concentration of $H^+$ = x = 0.00212 M

Now we have to calculate the pH of solution.

$pH=-\log [H^+]$

$pH=-\log (0.00212)$

$pH=2.67$

Therefore, the pH of the solution is, 2.67

8 0

4 years ago

What are the benefits and drawbacks to having a pouring temperature that is much higher than the metal’s melting temperature?

Mashcka [7]

Answer:

The main advantage would be that with the pouring temperature being much higher, there is very little chance that the metal will solidify in the mould while busy pouring. This will allow for moulds that are quite intricate to still be fully filled. The drawbacks, though, include an increased chance defects forming which relates to shrinkage (cold shots, shrinkage pores, etc). Another drawback includes entrained air being present, due to the viscosity of the metal being low because of the high pouring temperature.

3 0

3 years ago