B) 1 Zn+ 2HCl--> 1 ZnCl2+1H2
This is balanced
Answer:
It reads as follows: 0.5 moles of solute per liter of solution.
Explanation:
Molarity is the most frequent way of expressing the concentration of solutions in chemistry, and it indicates the number of moles of solute dissolved per liter of solution; is represented by the letter M.
<u>Answer:</u> The Gibbs free energy of the reaction is 21.32 kJ/mol
<u>Explanation:</u>
The chemical equation follows:
The equation used to Gibbs free energy of the reaction follows:
where,
= free energy of the reaction
= standard Gibbs free energy = 29.7 kJ/mol = 29700 J/mol (Conversion factor: 1 kJ = 1000 J)
R = Gas constant = 8.314J/K mol
T = Temperature = ![37^oC=[273+37]K=310K](https://tex.z-dn.net/?f=37%5EoC%3D%5B273%2B37%5DK%3D310K)
= Ratio of concentration of products and reactants = ![\frac{\text{[Oxaloacetate]}[NADH]}{\text{[Malate]}[NAD^+]}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7B%5BOxaloacetate%5D%7D%5BNADH%5D%7D%7B%5Ctext%7B%5BMalate%5D%7D%5BNAD%5E%2B%5D%7D)
![\text{[Oxaloacetate]}=0.130mM](https://tex.z-dn.net/?f=%5Ctext%7B%5BOxaloacetate%5D%7D%3D0.130mM)
![[NADH]=2.0\times 10^2mM](https://tex.z-dn.net/?f=%5BNADH%5D%3D2.0%5Ctimes%2010%5E2mM)
![\text{[Malate]}=1.37mM](https://tex.z-dn.net/?f=%5Ctext%7B%5BMalate%5D%7D%3D1.37mM)
![[NAD^+]=490mM](https://tex.z-dn.net/?f=%5BNAD%5E%2B%5D%3D490mM)
Putting values in above expression, we get:
Hence, the Gibbs free energy of the reaction is 21.32 kJ/mol
Answer:
The mismatched pair is : D. phenolics-peracetic acid
Explanation:
A. sodium hypochlorite-chlorine: Correct pair
Sodium hypochlorite solution (NaOCl) is made from the reaction of chlorine and sodium hydroxide solution.
B. formalin-formaldehyde : Correct pair
The formalin solution is a 37% aqueous solution of formaldehyde.
C. iodophor-iodine : Correct pair
Iodophor, a combination of iodine and solubilizing agent. When diluted with water, iodophor releases free iodine.
D. phenolics-peracetic acid : wrong pair
Phenolics is a noun used for phenols, aromatic hydrocarbons with a hydroxyl group. Whereas, peracetic acid or peroxyacetic acid is an organic peroxide.
E. benzalkonium chloride-quaternary ammonium compound: Correct pair
Benzalkonium chloride is a quaternary ammonium organic salt, used as a cationic surfactant.
The world made up of four elements according to my understanding which is fire,water,earth and air but copper is also part of the simple elements so the answer is copper
