The lower the pH, the more acidic the solution is.
Remember, pH 7.0 is H2O. As pH decreases below 7, the solution's acidity increases. As pH increase above 7, the basicity of the solution increases.
Hence, in the choices you provided, pH 1.0 is most acidic.
PH 75 is the most acid.
v=h/lambda m =6.63*10^-34 kg m2 / s/(75*10^-12*1.67*10^-27) =5300m/s
When you combine the Kw equation with the total mass of the solution, you will get a number. If the number is above 60, it is a acid, it is below 75, it is a base and if your number is between 60 and 75, it is neutral.
Carbon has a atomic mass of 12.So its percentage is 75%
Its 5 hours. 50% of the substance is decayed at 10 hours (that is what half life means. It's full life is 20 hours). Multiple 75% times 20 hours to find that 75% is 15 hours. Subtracrt 15 hours from 20 hours to get the answer of 5 hours for the decay of 75% of the substance.
PH 75 is the most acid.
600
4/25 + 2/15 = 12/75 + 10/75 = 22/75
The average is 75/5 = 15
75% of 12 = 9
12/75 = 12 ÷ 75 = 0.16
75% of 12= 75% * 12= 0.75 * 12= 9
v=h/lambda m =6.63*10^-34 kg m2 / s/(75*10^-12*1.67*10^-27) =5300m/s
$67.510% off of $75= 10% discount applied to $75= $75 - (10% * $75)= $75 - (0.10 * $75)= $75 - $7.5= $67.5
75 tiles would do it (a 12*12 inch time = 1 square foot) but you need 10% over this for waste so you need to get 83 tiles.
12 over 75 in decimal form = 0.16
x = 16 x * .75 = 12 12 / .75 = x