Determine the concentration of ions, Chemistry

Assignment Help:

1.  Express 95 mg/l of Ca2+ as milligrams per liter of CaCO3.

2.  Express 221 mg/l of Ca(HCO3)2 as equivalents per liter of CaCO3.

3.  Determine the concentration of the following ions at equilibrium with the solid at 25 degrees C. 

a.  Cr3+ + 3OH- >>>Cr(OH)3, Ksp  = 6 x 10-31 

b.  CA2+  + 2 OH- >>>Ca(OH)2,   Ksp = 8 x 10 -6

4.  A 100-ml sample of water is titrated with 0.02 N H2SO4. The initial pH is 9.5 and 6.2 ml of acid is required to reach the pH 8.3 endpoint. An additional 9.8 ml of the acid is required to bring the sample to the pH 4.5 endpoint. Identify the species of alkalinity present and determine the concentration (mg/l) of each expressed as mg/L as CaCO3.


Related Discussions:- Determine the concentration of ions

Separation methods, Separation methods: The present unit gives an intr...

Separation methods: The present unit gives an introduction to the course on separation methods. It highlights the utility of separations within the analysis and recovery of pu

The number of electrons in the nucleus of c12 is, The number of electrons ...

The number of electrons in the nucleus of C 12   is (1) 6        (2) 12       (3)0      (4)3 Ans: 0

Trihydric alcohol, What are trihydric alcohols? What are their preparation ...

What are trihydric alcohols? What are their preparation methods? What are their physical properties?

Periodic table, what groups comprise each block of elements(s,p.d and f blo...

what groups comprise each block of elements(s,p.d and f blocks)in the periodic table

Iupac nameing, Sir any method to learn the arrangement of functional group ...

Sir any method to learn the arrangement of functional group in poly functional compound ????

Calculate the expected enthalpy of hydrogenation, Calculate the expected en...

Calculate the expected enthalpy of hydrogenation of a six-membered ring with three double bonds and compare it with the value obtained in 74.1. What is the reason for this diffe

Electrophilic substitutions reactions - organic chemistry, Electrophilic su...

Electrophilic substitutions reactions: Electrophilic substitution includes the attack by an electrophile. It is denoted as S E ( S denotes substitution and E denotes elct

Chemical equation, Li + H20 ----> LiOH + H2....if I start with 3.4 mols of ...

Li + H20 ----> LiOH + H2....if I start with 3.4 mols of H2O , how many mols of H2 can I make?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd