Data: Trial 1 Trial 2 Mass (g) Mass (g) Mass of crucible, cover, and magnesium (before heating) 23.3477 23.2556 Mass of crucible and cover 23,104 23,104 Mass of magnesium 0,2437 0,2516 23.4202 Mass of crucible, cover, and magnesium oxide (after heating) 23,5084 Mass of oxygen 0.1610 0,1646 (after heating – before heating) | Find the empirical formula for magnesium oxide (show your work for both trials):

Data: Trial 1 Trial 2 Mass (g) Mass (g) Mass of crucible, cover, and magnesium (before heating) 23.3477 23.2556 Mass of crucible and cover 23,104 23,104 Mass of magnesium 0,2437 0,2516 23.4202 Mass of crucible, cover, and magnesium oxide (after heating) 23,5084 Mass of oxygen 0.1610 0,1646 (after heating – before heating) | Find the empirical formula for magnesium oxide (show your work for both trials):

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.12QAP

See similar textbooks

Similar questions

Give typed full explanation After heating 1.1929g CaCO3 and MgCO3 for some minutes the mass of the mixture decreased to 0.8015. The %comp of CaCO3 turned out to be 54.29% and MgCO3 %comp is 45.71%. Calculate the percent error/percent yield.
answer is 0.72. how is it arrived at? please show detailed steps and calculation.
A student obtained 2.111 g of a mixture containing four components. After performing separation by chemical and physical methods, the student obtained the following mass data: Component 1: 0.486 g Component 2: 0.317 g Component 3: 0.127 g Component 4: 0.929 g Calculate the total percent recovery of the mixture. (Please show work)
Show ALL calculations pls. Don't reject if you dont know how to answer I need this. a. What are the average values for vph and vmo? Include calculation of net volume and errorsb. What is/are the component/s of the soda ash sample? c. Calculate the percent composition of the component/s. No need to include error propagation, but you still need to apply Significant Figure rules.
Deionized water is added to a 138.0 mL sample of 1.103 M oxalic acid to dilute it to 0.436 M. What volume of water, in mL, was added to dilute the sample? Round answer to correct sig figs.
Show work using conversion factors Answer key: #37d 1.250 moles CO2 #37e 4.92 mole HCl #37f 7.1422 moles HCl ( fixed 10/14/2020) #37g 143 g CO2
In the synthesis of benzoic acid, 3.5 mL of toluene were used and mixed with potassium permanganate solution. In making the potassium permanganate solution, 7 grams of the powder were dissolved in 150 mL of water. The resulting crystals were purified and the yield 1.53 grams. Identify the limiting reagent and compute for the number of moles that it consumed. What is the theoretical yield? What is the percentage yield? MW toluene = 94.14, density=0.87 g/mL , MW KMnO4 = 158, density = 2.7 g/mL , MW Benzoic acid = 122, density = 1.27 g/mL
Chemistry pls help, I dont understand how this software wants me to enter the answer. its asking lfr the starting amount but its not taking it in the way Im putting it
Kernels of popcorn were weighed and then heated to pop. Water escaped in the process of popping. DATA DESCRIPTION TRIAL 1 TRIAL 2 Mass of Empty Evaporating Dish 35.6450g 35.6452g Mass of Evaporating Dish + Kernels Before Heating 42.3512 g 44.9572 g Mass of Evaporating Dish + Kernels After Heating 41.2540 g 42.6571 g What is the average percentage of water in the kernels? 65.180% 28.719% 21.208% 3.8913%
Please do not round off sig figs in calculations until final answer. Thank you.
The percentage of an additive in gasoline was measured six times with the following results: 0.13; 0.12; 0.16; 0.17; 0.20 and 0.11%. What is the 99% confidence interval for the additive percentage?
1. 38Cu+Fe2+2Fe2+Option 42. 430.432Fe2+2Fe3+-0.343. 422Fe3+0.43-0.342Fe2+4. 452Fe3+2Fe2+0.43-0.345. 41Cu2-2Fe2+Fe2+Cu2+