The solution was then titrated with AgNO3 and volume used to generate the colour change was recorded. From the volume of AgNO3 used for the titration, the moles of Ag+ were calculated and found to be 0.005 moles of Ag+. Silver ions and iodine ions react in mole ratio of 1:1 to form the precipitate AgI (s). From the mole ratio it was calculated that 0.005 moles of I- reacted and thus 100% of I- was
We were able to determine the number of atoms by looking at their respective subscripts. The subscript of an element tells how much atom they consist. To balance the chemical equation above, we will follow the 5 steps mentioned above. I. The elements found in the equation are Nitrogen and Hydrogen.
One of the reactions you observed resulted in this product: NaCl + H2O + CO2 (g)? What well did this reaction occur in? Describe how the observations for this reaction support your answer. B BoldI ItalicsU Underline Bulleted list Numbered list Superscript Subscript70 Words A reaction I observed in number 1.) Sodium Bicarbonate mixed with Hydrochloric acid.
Because it is a tertiary benzylic halide, the reaction is considered an SN1 type. To test the purity, the class then uses a TLC. When one places,” a spot of the substance on the absorbent surface of the TLC plate, the solvent (or solvents) run up through the absorbent,” (Zubrick223). The initial mass of the reactant, triphenylmethyl chloride was 2.006 grams. The experiment yield is 1.589g, which is a 80.3% yield.
1.3 Organosilane  Monomeric silicon chemicals are known as silanes and any chemical that contains at least one carbon-silicon bond is known as an organosilane. Generally, organosilanes contain three key elements beside silicon; X represents for an organic moiety that is non-hydrolysable which can be either reactive or non-reactive depending on its type. OR\ is a hydrolysable group such as alkoxy or an acetoxy is known to be unstable when present with hydroxyl groups. Finally, R is a space moiety, which can be aryl or alkyl chain. Typically, due to the dual reactivity of organosilane, both alkoxy group (OR\) and non-hydrolysable organic moiety (X), it is used to couple inorganic or organic substrates such as minerals, metals or cellulose and polymeric matrices such as rubber, thermoplastic or thermosets to improve its physical properties.
The third value calculated was the moles of iron used, using the formula of grams of iron used, multiplied by 1 mole of iron over the gram atomic weight of iron. With values inputed, the formula was 2.4075*1 mole/55.85 grams, equaling .0431 moles of iron. The next value calculated was the moles of copper produced, figured out with the formula of moles of iron used multiplied by moles of copper over moles of iron used. With values inputed, the formula was .0431 moles of iron*1 mole of Cu/1 mole of iron = .0431 moles of copper. The fifth formula used for the purpose of calculating the grams of copper produced was moles of Cu multiplied by the gram atomic weight of copper over moles of copper.
In the first step, the leaving group departs, forming a carbocation C+. In the second step, the nucleophilic reagent (Nuc :) attaches to the carbocation and forms a covalent sigma bond. If the substrate has a chiral carbon, this mechanism can result in either inversion of the stereochemistry or retention of configuration. Usually both occur without preference. The result is racemization.
The Periodic Table is a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns. The Periodic Table illustrates the Periodic Law by showing the pattern of the elements in order by atomic numbers. It also shows what elements have similar atomic structure by appearing in the vertical columns. The Periodic Law is shown in the Periodic Table by revealing what elements fall in order, due to similar properties occurring at regular intervals. It is used to tell which elements go where on the Periodic Table and which elements will react with each other if combined together.
Introduction The purpose of this lab was to compare galvanizing and creating brass with pennies using weight change, mass change and observations. The independent variables are the types of pennies used. The dependent variables are the characteristics, change in pennies, and mass of the pennies. The constant variable is the amount of sodium hydroxide. Literature review A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
Introduction: The unknown acid molarity will be determining by titration method. Titration is a process depends on concentration of known solution to another solution until the solute in the another solution completely react. Standard solution is the solution of known concentration that used in titration. In this experiment, NaOH was the titrant (base) however, the two analyte which used were HCl and H2SO4. The chemical reaction equations are molecular and ionic molecular equation for (NaOH) and (HCL) is: HCl (aq) + NaOH (aq) --> H2O (l) + NaCl (aq) The Net Ionic equation is: H+ (aq) + OH- (aq) --> H2O (l) Molecular equation for (NaOH) and (H2SO4) is: H2SO4(aq) +2NaOH(aq) --> Na2SO4+ 2H2O The Net Ionic equation is: H+ (aq) + OH- (aq) -->