Jun 27, 2016 · A buffer solution of pH = 5.15 is to be prepared from acetic acid (Ka = #1.80 x 10^-5#), sodium acetate and water. What must be the molar ratio of acetate ion to acetic acid in …

Mar 14, 2018 · The idea here is that adding a very small amount of strong base to the buffer will increase the "pH" of the buffer ever so slightly. Even without doing any calculations, you can …

Nov 22, 2016 · We can work out the number of moles of ammonia present in the buffer. #sf(n_(NH_3)=cxxv=0.24xx0.05=0.012)# You can see straight away that this is actually less …

Apr 23, 2018 · Calculate the change in molar entropy when 1 mol of solid iodine goes from 25º C to 184º C at a constant pressure of 1 atm? The constant-pressure molar heat capacity for the …

Apr 26, 2016 · This problem can be solved using the equation λ = v/f Where - λ = Wavelength c = Speed of light f = Frequency You're given a frequency (f) of 5.10 * 10^(14) Hz, and you're …

May 31, 2017 · For instance, population in 2000 was 6 billion population in 2017 is 7.4 billion (you can visit census.gov to see this figure). There are 17 years between 2000 and 2017. Now r is …

Dec 16, 2015 · The slope through the two data points is m =(32-5)/(-2-1)=-9 The line perpendicular has slope =-1/m=-1/(-9)=1/9 hope that helped

Sep 23, 2016 · How do you calculate the number of moles from volume? How do you convert grams to mole? ...

epsilon = 46.7 dm^(-3)mol^(-1)cm^(-1) To calculate this, we need to use the Beer-Lambert Law. log_10(I_0/I) = A = epsilonCl Where A = absorbance; epsilon = molar extinction coefficient …

Dec 29, 2016 · 1376 views around the world You can reuse this answer ...