The mass of magnesium used in this experiment is critical to determining the moles of hydrogen gas generated. The analytical balances used in Chemistry 1A labs are very sensitive to point that touching materials with your fingers before measuring them can affect the measurements. The balances are sensitive enough to detect dirt and oils from your fingers transferred to the magnesium. Would your experimental value of R increase or decrease if the mass of magnesium measured was artificially high due the touching it with your hands? Increase Decrease

The mass of magnesium used in this experiment is critical to determining the moles of hydrogen gas generated. The analytical balances used in Chemistry 1A labs are very sensitive to point that touching materials with your fingers before measuring them can affect the measurements. The balances are sensitive enough to detect dirt and oils from your fingers transferred to the magnesium. Would your experimental value of R increase or decrease if the mass of magnesium measured was artificially high due the touching it with your hands? Increase Decrease

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Using the mass of the empty beaker and the mass of the beaker + KOH, calculate the mass of KOH added. Then, convert this mass, to the number of moles of KOH added. g=grams Mass of empty beaker= 30.128g Mass of beaker and KOH=33.629g
1. Large amounts of titanium metal are refined by reacting titanium(III) chloride solution with magnesium metal. To test this refining process, a student reacts 1.53 kg of magnesium metal with excess titanium(III) chloride solution. After the reaction was complete, the student had extracted 1.62 kg of titanium metal. From this data, calculate the percent error of this experiment.Hint: Write a balanced chemical reaction equation and calculate theoretical mass first.Record only your final answer with the correct number of significant digits and the proper units. 2. Platinum is a precious metal that is used as a catalyst for many important industrial reactions. Platinum can be purified by reacting platinum(IV) bromide solution with aluminium metal. To test this purification process, a student reacted 15.0 kg of aluminium metal with excess platinum(IV) bromide solution. After the reaction was complete, the student had extracted 75.4 kg of platinum metal. From this data, calculate the…
A chemist measures the amount of lodine solid produced during an experiment. He finds that 3.02 g of lodine solid is produced. Calculate the number of moles of iodine solid produced. Be sure your answer has the correct number of significant digits. mot X 5 ?
During an accident, the air bag inflates due to the decomposition reaction of sodium azide (NaN3). When heated, solid sodium azide reacts by itself to form solid sodium and nitrogen gas as products. What mass of sodium azide do you need to produce 200. L of nitrogen gas. The density of nitrogen gas is 1.2056 g/L.
Hand written solutions are strictly prohibited
How many C atoms are present in the sample of C3H3 with mass 7.11 g? Avogadro's number is 6.022 x 1023. Enter your answer using scientific notation and to three significant digits. C atoms
The chemical formula for sodium bromide is NaBr. A chemist measured the amount of sodium bromide produced during an experiment. She finds that 182. g of sodium bromide is produced. Calculate the number of moles of sodium bromide produced. Be sure your answer has the correct number of significant digits.
Ammonium perchlorate NH4ClO4 is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitrogen gas N2, chlorine gas Cl2, oxygen gas O2, water H2O, and a great deal of energy. What mass of chlorine gas is produced by the reaction of 1.49g of ammonium perchlorate? Round to 3 significant digits.
You must show calculations in the space pr receive credit. he line to 1. The following data was obtained by a student heating a mixture of BaCl2•2 H2O and an inert material. Calculate the percent of BaCl2•2 H2O in the sample 24.525 g 26.716 g 26.504 g olod slam Lo Mass of crucible Mass of crucible and mixture Mass of crucible and mixture after heating mby
Calculate the number of atoms in a 2.17 x 105 mole sample of neon. Your answer should be rounded to the correct number of significant figures and written in scientific notation.
Liquid hexane CH3CH24CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O . What is the theoretical yield of water formed from the reaction of 79.3g of hexane and 213. g of oxygen gas? Be sure your answer has the correct number of significant digits in it.
1. The molecular formula for potassium hydrogen phthalate (abbreviated KHP) is C3H$O4K. What is the molar mass of KHP? Show all work with no rounding errors and have the final answer accurate to at least two decimal places.