When 14.7 mL of aqueous HBr was added to water, 482 mL of a solution with a pH of 4.23 was produced. What was the molarity of the initial HBr solution

Molarity of initial HBr solution is

Explanation:

 , where represents concentration of in molarity.

Here

So,

Let's assume initial molarity of HBr is C (M) then initial concentration of will also be equal to C (M) as 1 mol of HBr produces 1 mol of

So, in accordance with Laws of dilution ():

or,

Hence molarity of initial HBr solution is      

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.