Determination of Ka for a Weak Acid Introduction In the experiment preformed the objective is to titrate a weak acid with a strong base. In a titration of a weak acid with a strong base the titrant is the strong base and the analyte is a weak acid. The reaction that will occur is the direct transfer of protons from the weak acid to the hydroxide ion. The data gathered will be represented on the titration curve‚ a graph of the volume of titrant being the strong base plotted against the pH .The
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solution that contains 0.25 M benzoic acid (C6H5CO2H) and 0.15 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] A. B. C. D. E. 6. A solution is prepared by mixing 500. mL of 0.10 M NaOCl and 500. mL of 0.20 M HOCl. What is the pH of this solution? [Ka(HOCl) = 3.2 × 10-8] A. B. C. D. E. 7. 0.97 3.10 4.40 3.70 4.30 Calculate the pH of a solution that is 0.410 M in HOCl and 0.050 M in NaOCl. [Ka(HOCl) = 3.2 × 10-8] A. B. C. D. E. 9. 4.10 7.00 7.19 7.49 7.80 Calculate the pH of a buffer
Free PH Buffer solution Sodium hydroxide
Ancient Egyptians had a strong belief in preserving the body for the afterlife in hopes of achieving immortality. Part of this preservation was to protect and identify the body by painting or carving pictures‚ hieroglyphics‚ and symbols on the coffin. One very good example of this is represented by the ‘Mummy of Irethorrou in Coffin.’ This coffin‚ made of wood with polychrome‚ is adorned with hieroglyphics‚ symbols‚ and a portrait of the Egyptian priest. It was found in a cemetery in Akhmim‚ and
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the acid ionization constant‚ Ka. The equation for Ka incorporates the concentration of water as a constant value. Ka = [ H3O+][A-] [HA] and Ka = Kd [H2O] Organic acid ionization constants can cumbersome to work with because they are often very small numbers. Acetic acid‚ for example‚ has a Ka is value of about 0.00001 (or 10-5)‚ phenol has a Ka of 10-10. It is usually more convenient to use a logarithmic scale to handle these numbers. Accordingly‚ Ka values are transformed to pKa values
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Teri muhabbat ne jab dil dukhaya hai kyun naam phir tera aaya hai‚ tujhse shikayat kare hum phir kyun mohabbat kare hai hum ‚her pal hai jalta toh is dil mein rehta kyun tera he ek naam hai Kabir Dohas Chalti Chakki Dekh Kar‚ Diya Kabira Roye Dui Paatan Ke Beech Mein‚Sabit Bacha Na Koye Translation Looking at the grinding stones‚ Kabir laments In the duel of wheels‚ nothing stays intact. My understanding This doha picks up a situation from our daily life. Kabir watches the woman grinding
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1. Adsorption: Concentration of liquid or gaseous molecules over the surface of a solid material is known as adsorption. It is a surface phenomenon. (e.g.) H2 adsorption over nickel. The solid material is known as adsorbent. (e.g.) Nickel‚ Silica gel‚ Charcoal‚ Zeolite The gaseous or liquid molecules are adsorbate (e.g.) H2 gas‚ Bromine‚ benzene‚ water vapour For gases‚ a special name is given as “occlusion’ 2.If the concentration is of bulk phenomenon‚ it is absorption
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Report on: Ethical Issues in last 6 month Submitted to: Prof. Majalkar BY: Nihali Jadvani Roll No: 18 For Subject Business Ethics & Corporate Governance 2G Spectrum Scam We have had a number of scams in India; but none bigger than the scam involving the process of allocating unified access service licenses. • It is Rs.1.76-lakh crore worth of scam. The amount is approximately 2% of national GDP or 1/3 of current tax revenue of India. It is also equals to annual income of
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1. Objectives • To provide an introduction to the main features of computer aided design and analysis of power systems and the use of ERACS software package for diagram building and Load Flow analysis. • Enhance the student learning process‚ by relating the theory and analytical procedures to computer aided techniques for system analysis and problems solving. • To give the student the basic hands-on experience on the use of industry-based software package to simulate faulted power
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Për sa i përket qellimit që ka feja kryesisht mund të themi se tashmë ajo është bërë faktor stabiliteti në shoqëri. Feja përbën një faktor të rëndësishëm të integrimit shoqëror. Kështu ajo i ushqen anëtarët e vet me vlera dhe norma si dhe ndihmon konsensusin e tyre për cështjet morale
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elections. UPA-2 started on a high by winning almost full majority on its own. However‚ their second term has been marred with controversies and corruption allegations. Starting with Commonwealth Games scam‚ every few months saw a new scam coming out like Adarsh Society scam and the biggest of all‚ the 2G scam. Fuel and commodity prices have risen sharply in the past few years adding to the woes of common man. Crusade against black money and corruption by Anna Hazare and to some extent baba Ramdev has only
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