A sample of grape juice has a hydroxide ion concentration of 1.4 x 10^-10 M. Which of these equations will you use to find the hydronium ion concentration?

Explanation:

grape juice

pOH = -log[1.4*10⁻¹⁰]≈9.6

pH=14-pOH=14-9.6=4.4

orange juce

pH= -log[1.8*10⁻⁴]=3.7

Orange juice has lower pH, so it is more acidic.

l dont know l am s sorry

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml