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A) Calculate the hydrogen-ion concentration of a 5.45*10^-4 M H2CO3, solution, noting that Ka is bigger than Kb.B)What is the
1. 1 answer
2. asked by Henry
3. 618 views
What relationship exists between H^+ ion concentration and OH^- ion concentration? Waht is the OH^- concentration of an aqueous
1. 1 answer
2. asked by chemdummy
3. 765 views
Calculate the concentration of all species in a 0.145 M solution of H2CO3 (Ka1 is 4.3×10−7 and Ka2 is 5.6×10−11).Calculate
1. 1 answer
2. asked by trump
3. 2,210 views
28cm3 of 0.2mol of sodium hydroxide was titrated against 25cm3 of hydrochloric acid using methyl orange as indicator, calculate
1. 1 answer
2. asked by rukayya
3. 569 views
if i calculated a dilution concentration from excel to be 0.171 ppm, how do i calculate the concentration of the analyte in 64
1. 2 answers
2. asked by Anonymous
3. 436 views
If a solution of Ca(OH)2 has a pH of 12.31 how can I calculate the concentration of calcium hydroxide in mol L-1 ?Write the
1. 1 answer
2. asked by Fiona
3. 944 views
I need help with a concentration question. I need to know how to calculate the product with the higher concentration. $6.50 for
1. 2 answers
2. asked by Angie
3. 556 views
A dilute tetraoxosulphate(vi)acid B, contains 2.0g of NaOH per 250cm3 of solution. 25cm3 of B requires 20.0cm3 of A for complete
1. 1 answer
2. asked by Christiana
3. 652 views
Calculate the solubility (S) of Al(OH)3 based on [OH-] concentration (mol/L)?Suppose the concentration of [OH-] is obvious and
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2. asked by Theia'a
3. 352 views
Given a diprotic acid, H2A, with two ionization constants of Ka1 = 4.5× 10–2 and Ka2 = 5.2× 10–7.Calculate the pH and
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2. asked by amanda1012
3. 678 views

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