Granulate 83503

Bathing water should have a pH value in the range of 6.8 - 7.2. How much granulate should we add to increase the pH value from 6.2 to 7 if a dose of 100g/10m³ increases the pH by approx. 0.1?

P.S. It's not 800 grams.

Correct answer:

m =  758.4892 g

Step-by-step explanation:

p1=6.2 pH p2=7 pH p3=p1+0.1=6.2+0.1=1063=6.3 pH  pH =  log(H)  H1=10p1=106.26.3096107 H2=10p2=107=1107 H3=10p3=106.35.0119107  r1=p2/p1=7/6.2=31351.129 r3=p3/p1=6.3/6.2=62631.0161   r3n = r1  n  log r3 = log r1  n=log(r3)log(r1)=log1.0161log1.1297.5849  m0=100 g  m=n m0=7.5849 100=758.4892 g



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