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School

Wingate University *

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Course

101

Subject

Chemistry

Date

Oct 30, 2023

Type

jpg

Pages

1

Uploaded by LieutenantTeam12292

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i E R &} & ) . - o ¢ - APl R A R e VN Ml e ok g i bl 8 ¢ bt ¥ i s N ¢ | T WS ' l 'i : . g Find mass ot *hiS - Mg CS) 4 2 et (ag) —» MgQl; Cag) 4 17 (9) | - 1y the water level inside the beaker in mm, measurement a in Figure 1. LoT¥N AMA\S Pre-lab Section ® Summarize the procedure. ' ; . ® Draw a picture of what will happen and explain the chemistry and physics going on. ® Identify the data to be collected and recorded in a table. ,'p i Calculations/Experimental Results & 1. Create a data table that includes the unknown #, volume of hydrogen recorded in lab, height of water in mm recorded in lab and results from the calculations below. ®* Convert atmospheric pressure from inHg to mmHg. _ A * Find Pyq by converting the height of water to an equivalent height in mmHg given that the density of mercury is 13.6 times as dense as water [1.00 mm H20 = 0.07353 mm Hg]. ; ® Calculate the pressure of the Hx(g) using equation 5.1, and the Pwater vapor 18 equal t0 23.8 mmHg. e Using PV = nRT, calculate the moles of H> released in the reaction, assume temperature is 25°C, ® Then, using the balanced chemical equation, calculate the grams of magnesium. * Calculate the % error based on true values of your magnesium unknown as instructed by your professor. Post-Lab Questions 1. Write a balanced molecular equation and a net ionic equation for the hydrogen synthesis reaction. : 2. A CHEM 101 student has a 25.0 mg sample of magnesium that gives a volume of 2N —=26.0 mL of Hx(g). If the atmospheric pressure is 30.68 inches of Hg, calculate how ; many mm of H>0 will be alz\ove the water in the beaker. : e | T o . Calcoledion Continued. ; L . fiS'Z.Q mm‘-\\j.X |°+m_ = ‘q‘oL{O PN=n kT | - : QbOmMU Gy P= - QY40 ot ' . Y= .0Z8s i : 1eoomL = 0293 V= © %= . 08204 TR Q& __# o 00283 (\i\j - -OZijf\i\j
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