Chemistry, 27.07.2019 02:30 lilinicholeb
At the equivalence point in an acid - base titration, the:
a. [h+] = [oh¯]
b. [h+] > [oh¯]
c. [h+] < [oh¯]
d. [oh-] is zero
Answers: 2
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Chemistry, 23.06.2019 07:30
Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __
Answers: 1
At the equivalence point in an acid - base titration, the:
a. [h+] = [oh¯]
b. [h+] >...
a. [h+] = [oh¯]
b. [h+] >...
Mathematics, 24.10.2021 14:00
Biology, 24.10.2021 14:00
Mathematics, 24.10.2021 14:00
History, 24.10.2021 14:00
History, 24.10.2021 14:00
Biology, 24.10.2021 14:00
English, 24.10.2021 14:00
Chemistry, 24.10.2021 14:00
Biology, 24.10.2021 14:00
Chemistry, 24.10.2021 14:00
SAT, 24.10.2021 14:00
Mathematics, 24.10.2021 14:00