What is the [h+] of an hcl solution if the ph is measured to be 6? select one: a. 1 x 10-7 m b. 1 x 10-6 m c. 6 x 10-6 m d. 8 x 10-1 m

Answer : The correct option is,

Explanation :  Given,

The value of pH of HCl = 6

As we know that,

pH : It is defined as the negative logarithm of hydrogen ion or hydronium ion concentration.

The formula of pH is :

Now put all the given values in this formula, we get the concentration of hydrogen ion.

Therefore, the concentration of hydrogen ion is,

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

it is the most commonly accepted one