WebTHe air is made up of many gases and aerosols, including water vapour. (a) Determine the molar mass of a waver vapour molecule. select units (b)Determine the RMS speed of water vapour molecules held at a temperature of 15.3 deg C and pressure of 0.95 bar. select units (c) Taking the mean free path of an air molecule in these conditions as WebDec 30, 2024 · When doing a titration, we usually have a solution with a known volume but unknown molarity (the analyte), to which a color indicator (e.g., phenolphthalein) is added.The indicator will change colour when this 1: 1 1:1 1: 1 ratio (governed by its titration curve) is achieved.By adding either an acid or a base with a known molarity (the titrant) …
MEEN 436-HW-19-2024-basics of psychrometrics and chart.pdf...
WebOct 26, 2014 · Answer. Normality = Mass of solute in grams \ equivalent mass X1000/volume of the solution in mL Molar mass of Oxalic acid (H 2 C 2 O 4 .2 H 2 O) = 126 Equivalent mass of acid = Molar mass/basicity = 126/2 = 63g equivalents Mass of oxalic acid =4.5g Volume of the solution = 250 mL Normality = 4.5\63 X 1000/250 = 0.285N WebThe procedure to use the molar mass calculator is as follows: Step 1: Enter the chemical compound in the respective input field. Step 2: Now click the button “Calculate Molar Mass” to get the result. Step 3: Finally, the molar mass of the chemical compound will be displayed in the new window. how clean mackeeper
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WebTo determine the mass of KHP required for the titration, you should first determine the number of moles of NaOH in approximately 15 mL of your titrant. Let’s say that your NaOH titrant concentration is 5.00 M. How many moles of NaOH would be present in 15.0 mL? 5.00 moles/L X 0.0150 L= 7.50 X10-2 moles of NaOH. WebThe reaction between HX and NaOH is HX (aq) + NaOH (aq) NaX (aq)+ H 2O (l) You will measure the volume of standard NaOH solution that is required to react with an accurately measured mass of unknown acid. From these data and the mole ratio of NaOH to unknown acid given by the equation above, you will calculate the molar mass of the unknown acid. WebMay 4, 2013 · Original Question. A lab team places .0250g of an unknown solid acid in an Erlenmeyer flask. They neutralize the solid acid with 15.0ml of .210 M Na(OH)(aq).One mole of the acid reacts with one mole of the base. Calculate the molar mass of the unknown solid acid; Answer using my 4 Step Process. Step 1: Find your givens (so you can turn a … how clean marble countertop