Answered: what is the empirical formula for…

Science

Chemistry

what is the empirical formula for unkown?

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter4: Molecules, Compounds, And Chemical Reactions

Section: Chapter Questions

Problem 35E: The active ingredient in aspirin is acetylsalicylic acid, which has the chemical formula C9H8O4. An...

See similar textbooks

Related questions

Q: Molecular weight (g/mol) Amount density (g/mL) Mass Volume Reagent (g) (mL) (mmol) 5.198 0.0058me…

A: The table given is,

Q: 3. A student reacted 0.3000 grams of aluminum with oxygen gas and obtained 0.5333 grams of aluminum…

A: NOTE : The formula you have written in answer of question 3 is incorrect. It will be Al3O4 and not…

Q: You can practice converting between the mass of a solution and mass of solute when the mass percent…

A: Mass of KCN (Solute)= 534 mg Mass% = 0.414% To calculate: Mass of KCN solution

Q: How many hg of oxygen are in 9.999 pg of cobaltous phosphite nanohydrate? The answer is 4.829 x…

A: Here we have asked how many hg of oxygen are present in 9.999 pg of cobaltous phosphite nanohydrate?…

Q: How many grams O in 115.6 g Fe(OH)3? Molar mass of Fe(OH)y is 106.867 Hint: 1 mole Fe(OH) has 3 mol…

A: Given, Molar mass of Fe(OH)3 = 106.867 u Mass of Fe(OH)3 = 115.6 g. In one mole of Fe(OH)3 , we…

Q: Mass of Unknown sample is 25.946g, Mass of SiO2 Recovered is 7.8162g, Mass of KNO3 Recovered is…

Q: Calculate how many moles of CaCl2•2H2O are present in 1.50 g of CaCl2•2H2O and then calculate how…

A: Initial mass of calcium chloride di-hydrate = 1.50 g Molar mass of calcium chloride di-hydrate =…

Q: How many grams of C are in 35.1 g of C6 H10S? Express the number of moles to three significant…

A: Given, mass of C6H10S = 25.1 g Now, moles of C6H10S can be calculated as, moles of…

Q: Data Sheet Table 1. The Reaction of Magnesium Ribbon. Trial 2 Measurement Trial 1 VIDEO 2 Mass of…

A: Balanced chemical reaction:- In this, the number of the individual atoms are equal on both sides of…

Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

A: Molar mass of H2O is 18.02 g/mol. Molar mass of CoCl2 is 129.84 g/mol. Mass of water removed can be…

Q: 14. How many moles of CC are in each of the following quantities? A. 79 gg of CC Express your…

A: Answer:- This question is answer by using the simple concept of calculation of moles using the given…

Q: volume HCl (mL) mass unknown sample (g) 0.5007 molarity HCl (mol/L) 25.00 12.1 . Write a balanced…

A: Given data : Mass of unknown sample = 0.5007 g Volume of HCl = 25 mL = 0.025 L Molarity of HCl =…

Q: Calculate the number of moles (n) in each of the following: Part A 85.9 g of Ni Express your answer…

Q: n photosynthesis, plants take carbon dioxide and water and conver lucose and oxygen. The reaction is…

A: Photosynthesis : It is a process by which plants convert light energy into chemical energy and use…

Q: The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of…

Q: What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is…

A: w/w % =( mass of solute(g)/mass of solution(g))*100

Q: Calculate the number of moles in each of the following Part B 0.231 g of C Express your answer with…

A: Given that, Part-B: 0.231 g Carbon (C) We have to calculate the number of moles of carbon (C).…

Q: Aluminium has a density of 2.70 | g/cm³ . How many moles of aluminum are in a 13.2 cm3 block of the…

A: We know the following equation 'density=massvolume And mole=massatomic mass or massmolar mass Given…

Q: Hello, I have an issue with calculations and I am not sure ,if I get correct answers,because (for…

A: The number of moles is a ratio of the mass of a substance to the molar mass of the substance.…

Q: Determine the moles of NH4NO3 in the sample. The molecular weight of NH4NO3is 80.0 g/mol.…

A: Moles = given mass / molecular mass

Q: please complete following table Mass of KNO3 Test tube + KNO3 Test tube only KNO3 only m1g =…

Q: MOLAR VIEW T03/S11 If a sample of (NH4)2HPO4 is found to contain 3.79 mol of NH4* ions how many…

A: The reaction can be written as follows: (NH4)2HPO4→2NH4++HPO42-

Q: B. Empirical Formula of Alum Trial 1 Trial 2 50.249g 57.925 1. Mass of beaker plus alum, KAl(SO,),…

Q: g of magnesium hydroxide (58.3196 u) is produced when 3.69 g of magnesium (24.3050 u) is added to…

Q: Calculate the mass in grams of 0.167 moles of lithium hydroxide. Report your to answer to 2 decimal…

Q: Calcium chloride is used to melt ice on roads. To determine how much calcium chloride has been used,…

A: Given that, The mass of the empty container is m0 = 54.54 g, The total mass of the container and the…

Q: A hydrated salt is 21% water (anhydrous formula weight is 136.1). a. How many grams of water would…

A: Given: Hydrated salt is 21% water Anhydrous formula weight is 136.1

Q: Calculate the mass (in grams) of chlorine in 5.56 gram of C2F3CI3. Report answer to two decimal…

A: The compound given is C2F3Cl3. Mass of C2F3Cl3 given = 5.56 g

Q: Which of the following corresponds to 21H ? Group of answer choices triton hydrogen atom deuterium…

Q: If the mass of 0.8 mole mixtures of NO and CH4 gases is 17 grams; I. The number of moles of NO is…

Q: Isópropyl alcohol (C3H8O) is commonly used to make hand sanitizer. How many moles of hydrogen atoms…

A: Volume of C3H8O = 0.268 L

Q: Sample Data 1. Mass of crucible 28.072 (grams) 2. Mass of crucible + Unknown 30.528 (grams) 3. Mass…

A: Given that Mass of crucible 28.072 (grams) 2. Mass of crucible + Unknown 30.528 (grams) 3. Mass of…

Q: B. Empirical Formula of Copper Sulfide 27.536g 35.097 mass of crucible and cover + copper wire…

A: Given: Trial-1 Trial-2 Mass of crucible and cover + copper wire 27.536 g 35.097 g Mass of…

Q: Masss(g) Masss(g) Mass(g) Mass(g) Mass(g) Beaker, H:O, Вeaker, H:0, Vinegar Beaker, H:0, Vinegar,…

A: Reaction is: NaHCO3 + CH3COOH--CH3COONa + CO2 + H2O. Alka seltzer tablet contains sodium…

Q: Determine the formula for hydrate of CuSO4 mass of crucible = 12.73g mass of crucible with hydrate =…

A: In the question Following informations given - Mass of crucible = 12.73g Mass of crucible with…

Q: 4. Experimental hydrate formula (unrounded) 5. Actual hydrate formula (rounded) 6. Experimental mass…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Data Trial 1 Trial 2 Mass of empty crucible with lid 26.698g 26.687g Mass of Mg metal,…

A: Data Trial 1 Trial 2 Mass of empty crucible, w1 26.698 g 26.687 g Mass of Mg + crucible+ lid ,…

Q: Mass of Copper Oxide: 1.0495g Mass of filter paper: 0.6698g Mass of empty watch glass: 43.2063g Mass…

A: In question Following information given - Mass of Copper Oxide = 1.0495 g Mass of filter paper =…

Q: MnO2 + 4HCl ---> MnCl2 + Cl2 + 2H2O If 0.86 mole of MnO2 reacts with 48.8 g HCl, and 24 g of…

A: Mole of MnO2 = 0.86 mol Mass of HCl = 48.8 g Mass of Cl2 = 24 g Percent yield = ?

Q: Data Table 1: Stoichiometry Values Initial: 1.50 g CACI2•2H2O (g) Initial: 147.02 mol CACI2•2H2O…

A: Given: Mass of CaCl2.2H2O = 1.50 g Mass of Na2CO3 = 0.08 g Converting mass of CaCl2.2H2O to moles:…

Q: Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work please.

A: 1- First calculate the moles of CaCl2•9H2O ( Hydrated compound ) molar mass of Hydrated compound is…

Q: The chemical Oswegium Patheride's formula is Os3Pa2. Oswegium's (Symbol Os) atomic mass is 10 grams…

A: The chemical formula of Oswegium pantherides is Os3Pa2. Given that, the atomic mass of Oswegium is…

Q: 502(g) 3 CO2 (9) 4 H,0 ) A typical propane cylinder contains 22 lbs of propane. What mass of CO, ,…

A: Given, the chemical reaction as follows,C3H8(g) +5O2(g)→3CO2(g)+4H2O(l)amount of propane for…

Q: Be sure to answer all parts. Cinnamic alcohol is used mainly in perfumery, particularly in soaps and…

Q: Mass of crucible + Na + S 29.782 (grams) 4. Mass of crucible + Na 28.786 (grams) 5. Mass of Na 0.714…

A: Number of moles can be calculated as Given mass/Molecular mass.

Q: How many grams of KCIO, are needed to form 20.5 g of O2? 2 KC103(3) 2 KCI(s) + 30z(g) Step 1: Sbow…

Q: Data Trial 1 Trial 2 Mass of empty crucible with lid 26.698g 26.687g Mass of Mg metal,…

A: The percent yield of a compound can be determined using the formula: % yield = Actual…

Q: please show work

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Determining the percent water and the formula of a hydrate Mass of crucible 12.73 grams Mass of…

Q: What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is…

Concept explainers

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

Empirical Formula for Unknown Sample Data
1. Mass of crucible 28.072
(grams)
2. Mass of crucible + Unknown 30.528
(grams)
3. Mass of crucible + Na + S 29.782
(grams)
4. Mass of crucible + Na 28.786
(grams)
5. Mass of Na 0.714
6. Mass of S 0.996
7. Mass of O 0.746
8. Mass of Unknown Sample 2.51
9. Moles of Na 0.0310
10. Moles of S 00311
11. Moles of O 0.466

with the information above what are the subscripts fo the following elements?

what is the empirical formula for unkown?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Empirical Formula for Unknown Sample Data1. Mass of crucible 28.072(grams)2. Mass of crucible + Unknown 30.528(grams)3. Mass of crucible + Na + S 29.782(grams)4. Mass of crucible + Na 28.786(grams) what is the moles for the following elements based on the data above? Moles of Na=? Moles of S=? Moles of O=?
X, Mass of sample (g) = 0.7 Y, Mass of benzoic acid (g) = 0.3 Z, Mass of pellet (g) = 0.9 calculate the follwing below information Mass of sample in pellet = Mass of benzoic acid in pellet =
Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her results are below. Complete Katie’s data table of experimental results. Mass of dry crucible + lid 42.37 g Mass of dry crucible + lid + CoCl2 • 6H2O (hydrate) 44.88 g Mass of CoCl2 • 6H2O 2.51 g Mass of crucible + lid + CoCl2 (after heating) 43.79 g Mass of CoCl2 (anhydrous) g Mass of water removed g Molar mass of water 18.02 g/mol Molar mass of CoCl2 129.84 g/mol Moles of H2O mol Moles of CoCl2 mol Molar ratio of water to CoCl2 (experimental) Molar ratio of water to CoCl2 (theoretical) 6.00 % error of the molar ratio % Q4. What was the most likely source of error in Katie’s experiment?
A mixture weighing 28.516g containers 4.518g NH4CL, 15.20g SiO2, with the remainder NaCl. find the percent, weight, of each component. Show you method for making the calculations.
Could you help me this calculation part? Mass of empty, dry crucible (g): 0.5gMass of crucible with sodium bicarbonate (g): 0.5gMass after first heating (g): 0.5gMass after second heating (g): XgMass after third heating (if needed) (g): YgC a l c u l a t i o n s : Show calculations and include all units. Circle your final answers, and include them in the data section as needed. 1. Calculate the mass of sodium bicarbonate sample used: 2. Calculate the theoretical yield of sodium carbonate based on your starting mass of sodium bicarbonate: 3. Calculate the mass of sodium carbonate obtained (this is your experimental yield): 4. Calculate the percent yield for sodium carbonate: Experimental x 100 = Theoretical
What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is 30.0 g and the total mass is 370.0 g.
If 10.00 ml of 0.0131 M KIO3 are used in the first part of the standardization process, how many moles of KIO3 are present?(Your answer should have 3 sig figs)(Recall that answers in scientific notation are entered as 1.234 E-5 for example)
How many hg of oxygen are in 9.999 pg of cobaltous phosphite nanohydrate? The answer is 4.829 x 10^-14 hg O how to get that answer
How many grams O in 115.6 g Fe(OH)3? Molar mass of Fe(OH)y is 106.867 Hint: 1 mole Fe(OH) has 3 mol O; use as a conversion factor Alternatively, use percent by mass Hint: do not need Avogadro's number Put the answer in the box in regular (non-scientific) notation. Use one figure past the decimal.
In an experiment to determine the molar mass of an unknown solid acid, a student calculated the following results: Trial # Molar mass (g/mol) 1 117.29 2 132.04 3 146.82 Average 132.05 The actual molar mass of the acid is 132.02 g/mol, therefore these results are: accurate and precise accurate but not precise precise but not accurate neither accurate nor precise it is impossible to say with the given information
Part A How many grams of ibuprofen are in 0.540 moles? Express your answer using four significant figures. Part BHow many grams of ibuprofen are in 0.540 moles?Express your answer using three significant figures. Part CHow many moles of carbon are in 12.5 g of ibuprofen?Express your answer using three significant figures.
Determination of the amount of water, mass of crucible + dehydrated sample 16.2265g, mass of dehydrated Sample is 1.3031g, mass of water is 0.3587g, moles of water is 0.01991moles,DETERMINATION of the amount of copper, mass of copper 0.6291g, moles of copper 9.900 × 10 to the negative 3 moles, Determination of the amount of chlorine, calculate mass of copper + water.