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In the second test tube we had 3mL of 1M NH3and phenolphthalein indicator. The original solution was bright pink the solution is basic. We then slowly added 1M of HCl, the addition of the HCl made the solution clear and colourless, this indicates that the solution is very acidic. The addition of HCl for the reaction works to reduce the amount of HCl (reactant) so the reaction will shift towards the products to reach equilibrium. NH3(aq) + HCl(aq) ? NH4Cl (aq) Is NH4Cl an acid or base? does the HCl ionize the NH3 base? is the a conjugate acid or base, HCl is a strong acid, what happens when a strong acid and weak base are mixed?
Chemical Structure and Hydrogen Bonds in Base Pairs, Draw the chemical structure of a correctly base paired G-C pair, then re-draw the pair with a propeller twist these answers should all be on one page following box 'G'
Calculate the partial pressure (in atmospheres) of each gas, Assuming that the total pressure of the gases is 1.34atm{rm atm} and that their mole ratio is 94 : 4.0 : 1.5 : 0.50,
A 363 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 636 mmHg. Calculate the moles of Ar present.
Considering the given equation KOH + CH 3 COOH ---> KCH 3 COO + H 2 O determine the volume of 0.157M solution Potassium hydroxide is essential to react with 0.385g of Acetic acid? express your answer in mL
Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32 P, how many grams will remain after 98.0 days?
Determine What is the percent by mass of sodium phosphate in a 0.142M Na 3 PO 4 (aq) solution? If it is given that it has a density =1.015g/mol.
Calculate the molarity of each of the following solutions 20.0 g NaCl in 1.0 L H2O
Ammonia burns in pure oxygen and reaction produces nitrogen and water. What is the amount of Nitrogen produced from 45.0 g NH3?
A 5.34 g sample of an aluminum alloy is reacted with hydrochloric acid to produce aluminum chloride and hydrogen gas. At a temperature of 298 Kelvin and a pressure of 1.03 atm, a volume of 1.53 L of hydrogen gas is collected.
Show whether or not precipitate will form in this process when the Ksp of Pbl = 9.8*10 -9
Quantum number representations - What are the possible values of the four quantum numbers for one electron in a 5d orbital?
Calculate the net charge of Aspartic Acid. Its given that Aspartic acid has a pK1 COOH at 1.99 and also a pK2 NH3 group at 9.90
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