Kk.235. A student obtained the following data in this experiment. Fill in the blanks in the data and make the indicated calculations:Mass of gelatin capsule0.1274 gMass of gelatin capsule and alloy sample 0.3185 gMass of alloy sample, mMass of empty beakerMass of beaker and displaced water.Mass of displaced waterVolume of displaced water(density=1.00 g/mL)Volume, V, of H, Volume of displaced water-Find the number of moles of H₂ evolved, H₂P₂ x VRTwhere:=THE ==NH₂. V is in liters.PH₂ is in atm... Tis in Kelvin.• R = 0.0821 liter-atm/mole-Kmoles H₂N₂nH₂Find, NH₂ the number of moles of H₂ per gram of sample.7616₂147.9 g400.2 gSubmit Answermoles H₂/9Try Another Version99Ambient temperature. tAmbient temperature. TAtmospheric pressureVapor pressure of H₂O at tPressure of dry H₂1PH, Patmospheric - Vapor Pressure,omL Pressure of dry H₂L5 Item attempts remaining25.0 °CK739 mm Hg23.8 mm Hgmm Hgatm

All the values can be calculated using the given experimental data. Some values would require…

A student obtained the following data in this experiment. Fill in the blanks in the data and make the indicated calculations: Mass of gelatin capsule 0.1274 g Mass of gelatin capsule and alloy sample 0.3185 g Mass of alloy sample, m Mass of empty beaker Mass of beaker and displaced water Mass of displaced water Volume of displaced water (density 1.00 g/mL) Volume, V, of H, Volume of displaced water- Find the number of moles of H₂ evolved, H₂ P, XV RT where: Tilly == NH₂ . . V is in liters. PH₂ is in atm. . T is in Kelvin. • R = 0.0821 liter-atm/mole-K moles H₂ 147.9 g 400.2 g N₂ 1611₂ m nH₂ Find, NH₂ the number of moles of H; per gram of sample. moles H₂/9 9 9 Ambient temperature. t Ambient temperature. T Atmospheric pressure Vapor pressure of H₂O at t Pressure of dry H₂ P, Patmospheric - Vapor Pressure, mL Pressure of dry H, L 25.0 °C K 739 mm Hg 23.8 mm Hg mm Hg atm

A student obtained the following data in this experiment. Fill in the blanks in the data and make the indicated calculations: Mass of gelatin capsule 0.1274 g Mass of gelatin capsule and alloy sample 0.3185 g Mass of alloy sample, m Mass of empty beaker Mass of beaker and displaced water Mass of displaced water Volume of displaced water (density 1.00 g/mL) Volume, V, of H, Volume of displaced water- Find the number of moles of H₂ evolved, H₂ P, XV RT where: Tilly == NH₂ . . V is in liters. PH₂ is in atm. . T is in Kelvin. • R = 0.0821 liter-atm/mole-K moles H₂ 147.9 g 400.2 g N₂ 1611₂ m nH₂ Find, NH₂ the number of moles of H; per gram of sample. moles H₂/9 9 9 Ambient temperature. t Ambient temperature. T Atmospheric pressure Vapor pressure of H₂O at t Pressure of dry H₂ P, Patmospheric - Vapor Pressure, mL Pressure of dry H, L 25.0 °C K 739 mm Hg 23.8 mm Hg mm Hg atm

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

Suppose a student measured the mass of a sample that has a known mass of 40.5809 g using an analytical balance. The mass they observed was unstable, constantly jumping between 39.5 and 41.5. Choose all of the following reasons that could cause this error. O The doors to the analytical balance were not closed completely, allowing an air current to circulate inside the balance. One weigh boat was used to tare the balance while a different one was used when the sample was massed. Twice the amount of sample was placed on the analytical balance. O The sample was heated, causing a convective flow.
A student obtains the following data: a- Mass of evaporating dish 21.345 g b- Mass of evaporating dish and saturated NaCl solution 42.817 g c- Mass of dish and NaCl after evaporation 38.915 g Report the Mass % of NaCl in this solution. Write the number as a percentage with the correct number of significant figures as shown. (i.e. 25%) There should be no space between the numbers and the % sign.
1) State your interpretation of the meaning of the slope for the first graph you prepared of Volume of Steel Nuts (mL) versus Number of Steel Nuts. Hint: Understanding the meaning of a slope involves several factors: the units which are a ratio of the y axis units over the x axis units, the interpretation of the slope as “number of the y axis units for every one of the x axis units” and the concept that constructing the best line or curve that follows the trend in the data is a sort of averaging of the random error throughout the data.
At 20oC 25.0 ml of concentrated nitric acid solution was found to have a mass of 32.503 g. What is the calculated density of this solution at 20oC? Show your calculation set-up and result using correct significant figures and proper units
2. Give the answer with correct sig.figs.: 332.57 +24.668 x 2.38 =
on x grat/tools/assessment/items/c491a454-a244-4cee-960d-e251a9ddd12a/assignments/5334272?redirectBackToOnClose=true&emptyReading Tab=true&ngasettin Resources A solution of CaCl, in water forms a mixture that is 32.5% calcium chloride by mass. If the total mass of the mixture is 198.3 g, what masses of CaCl, and water were used? mass of CaCl,: g mass of water: NEKT
Hi! I am having difficulty finishing and finding out the rest of tables in excel. I am trying to find the Calcium Carbonate in an Eggshell. I have put up the excel sheet I have done with the given data already inputed, I just need to find out the rest. Thank you so much!
Richards and Williard determined the molar mass of lithium and collected the following data (a) Find the mean molar mass determined by these workers. (b) Find the median molar mass (c) Assuming that the currently accepted value for the molar mass of lithium is the true value, calculate the absolute error and the present relative error of the mean value determined by Richards and Williard. (f) What factors have led to changes in molar mass since 191? (g) How would you determine the accuracy of a molar mass? Experiment Molar mass, g/mol 1 6.9391 2 6.9407 3 6.9409 4 6.9399 5 6.9407 6 6. 9391 7 6. 9406
A student wishes to prepare 2.00 L of 0.100 M KIO3, which has a molecular weight of 214g/mol. The proper procedure is to weigh out… 42.8 g of KIO3 and add 2.00 kg of H2O 42.8 g of KIO3 and add H2O until the final homogeneous solution has a volume of 2.00 L. 21.4 g of KIO3 and add H2O until the final homogeneous solution has a volume of 2.00 liters 42.8 grams of KIO3 and add 2.00 liters of H2O 21.4 grams fo KIO3 and add 2.00 liters of H2O
A mixture of methanol and water contains 60.0% water by mass. Assuming volume additivity: If the actual specific gravity of the mixture is 0.9345: How many liters is required to provide 150 mol of methanol?
13. Richards and Willard determined the molar mass of lithium and collected the following data.Experiment Molar mass, g/mol1 6.93912 6.94073 6.94094 6.93995 6.94076 6.93917 6.9406 (a) Find the mean molar mass determined by these workers.(b) Find the median molar mass.(c) Assuming that the currently accepted value for the molar mass of lithium is the true value, calculate the absolute error and the percent relative error of the mean value determined by Richards and Willard.
20 draps I drop=to miso,08ML = i mi Mores H,U- MasSS a,77 x103 MMall 18,02 x2.77x103) =|.67 X1021 If this drop of water was stretched so that the individual molecules would line up end-to-end, how long (in miles) would that line be? (1 molecule of H,O = 2 x 10-10 m, 1 km = 6.2 x 10 mile) A metal (M) forms a compound with the formula Ml4. The compound contains 71.00% I by mass. Ider the metal in the compound by name. .1-4126.9o x Loo 71:507.l6 2071x=507.6-3te0.394 0,71