"_ .;...........'.1......,.. __..... 11 ........ •_ _........... _ti(i$l,..,;.S! !l'!lIgical, and s ooial a nalys!s. F urthermore, a s ttJ!y Q f n arrative t echnique, i n\:ludinq 1 :he u se o f n arrative v oiee' b rings t ogether· t he , t.hree p reviously e onsidered a spects.
How much energy is transferred as heat when acids react with alkalis? Acids have a low pH <7 Alkalis have a high pH >7-14 Neutralisation is the reaction between an acid and an alkali base to form a neutral solution. A neutral solution can only be achieved if both the base and acid are of equal strengths. This is due to the H+ ions in the acid reacting with the OH- ions in the alkali, to produce H2O better known as water, which is a neutral substance. H+ OH- → H2O However water is not the only substance produced when an acid and an alkali (base) react together, salt is also produced.
Natatakot sila na kung dumating ang ama ng lasing at pananabik dahil nanabik sila sa dalang pansit ng ama. Arnold: Anim po kaming magkakapatid isa nap o rito si Mui-mui. Si mui – mui po ay isang walong taong gulang at sakitin at lagging humahalinghing na parang kuting na madalas kainisan ng aming ama. Jay-r: Natatandaan po namin dati mahilig magsupresa ang aming ama, lagi pong umuuwi ang aming ama na may dalang pansit at sabay sabay naming pasasaluhan sa aming bahay ng masayang masaya. Ngunit hindi na ganoong kabait ang aming ama nung nagsimula ng matangal po siya sa trabaho na lagarian.
Copper (II) sulphate solution CATHODE: Cu2+ (aq) + 2e- Cu (s) ANODE: 4OH- (aq) → 2H2O (l) + O2 (g) + 4e- 2CuSO4 (aq) + 2H2O (l) → 2Cu (s) + 2H2SO4 (aq) + O2 (g) During electrolysis of copper (II) sulphate the oxygen gas is evolved at the positive electrode named anode. Why are oxygen ions attracted and not sulphate ions? It is because oxygen gas has higher standard reduction potential than sulphate ions. That is why we can see bubbles being evolved at the anode, and with time, elementary copper at the cathode. The same situations is when we have copper and graphite electrodes.
In this example: NO2- is the conjugate base of the acid HNO2 and H3O+ is the conjugate acid of the base H2O. Lewis: acid: accepts an electron pair base: donates an electron pair The advantage of this theory is that many more reactions can be considered acid-base reactions because they do not have to occur in solution A salt is formed when an acid and a base are mixed and the acid releases H+ ions while the base releases OH- ions. This process is called hydrolysis. The pH of the salt depends on the strengths of the original acids and bases: These salts are acidic or basic due to their acidic or basic ions. When weak acids or weak bases react with water, they make strong conjugate bases or conjugate acids, respectively, which determines the pH of the salt Strong Acids: These acids completely ionize in solution so they are always represented in chemical equations in their ionized form.
This is because hydrogen bonds to the water molecules are formed. Acetaldehyde (ethanal, CH3CHO) and acetone are miscible with water in all proportions. II. Chemical Properties (see Bettelheim, chapter 17.4) Aldehydes are easily oxidized a fact due to the presence of the hydrogen attached to the carbonyl group (this is not present in ketones, which are less easily oxidized). Oxidation of aldehydes yields carboxylic acids.
Therefore each compound has similar solubility in water. The hydrogen bonds in butanol are stronger that the dipole interactions in diethyl ether. Butanol has a higher boiling point because of the stronger hydrogen bonds. The intermolecular forces holding the butanol molecules together are stronger than those holding the diethyl ether molecules together. 2) Predict which of the following in each set of compounds will have the highest water solubility.
Siya'y bumalik sa nayon at nakipagkita sa matatandang pantas. Anang isang matanda, " Marahil ang ibong iyon ay ang sugo ng ating bathala. Ipinaaalaala sa atin na dapat tayong magdaos ng caᾗao." Kung gayon, ngayon din ay magdaraos tayo ng caᾗao," ang pasiya ni Kunto. Ipinagbigay-alam sa lahat ang caᾗao na gagawin.
tert-Butyl chloride is a colourless, liquid organic compound at room temperature and it is highly flammable and volatile. Tertiary alcohols can be converted to their corresponding alkyl chlorides by the addition of concentrated hydrochloric acid to the alcohol. In this experiment, concentrated HCl is added to tert-butyl alcohol to produce tert-butyl chloride via SN1 reaction. R3COH > R2CHOH > RCH2OH > CH3OH Tertiary alcohols react readily with HX alone to form alkyl halide, while secondary and primary require catalyse in the halo hydrogenation reaction. Zinc Chloride acts as the catalyst in the reaction.