what is the empirical formula for unkown?

Q: I need to know which is the mass of crucible and kid with magnesium please

A: A question based on analytical chemistry, which is to be accomplished.

Q: empirical formula of bismuth chloride?

A: (a)   Given:          Mass of Bi (Bismuth)=0.687g          Mass of Bismuth chloride=1.032g

Q: 1. CuSO4.5H2O + O2 (heated)_______ + H2O  CUSO2 CuSO4 Cu2SO2 2. FeSO4.7H2O is called _____________.…

A: The given sulfates are hydrated sulfates of transition metals.

Q: Formula: M1 x V1 = M2 x V2 I need to find M2. M1 = Molar mass of Cobalt 2 Chloride (which i…

A: Interpretation -  To find the value of M2 according to given formula   M1 x V1 = M2 x V2  when…

Q: a. What mass is represented by 0.0146 mol of C3H7OH (2-propanol, rubbing alcohol)? Mass %3D b. What…

A: a). Given: The moles of C3H7OH = 0.0146 mol. The molar mass of C3H7OH = 60.09 g/mol.

Q: Mass of crucible and cover is 43.92 g. The mass of crucible, cover, and magnesium is 44.62g. Mass of…

A: Empirical formula is the chemical formula  which represents the simple ratio of atoms of constituent…

Q: STATION 9 (CALCULATION ONLY) A certain volume of an alcoholic beverage contains 15.00 mL of ethyl…

A: Mass of 1 mole is equal to the molar mass. 1 mole = 6.022 x 1023 atoms/molecules  Moles = Mass/Molar…

Q: Determine the number of molecules of Cr.O. that form when 1.34 x 10 gof oxygen completely reacts…

A: Given: Mass of Oxygen = 1.34 x 103 g Given Reaction is  To determine- Number of molecules of Cr2O3

Q: rtobstodafo I nominoq В. Determination of NaCl 86.096 1. Mass of evaporating dish #2, watch glass,…

A:

Q: How many grams are in 5.32 x 10 molecules of CO ?

A: Number of molecules of CO2 = 5.32 x 1022 molecules.

Q: 16. Empirical Formula Mass: 19. Empirical Formula Mass: CH HgF 17. Empirical Formula Mass: 20.…

A: Empirical formula and molecular formula: Empirical formula: it can be defined as the simplest whole…

Q: 18. The chemical formula for hydrogen sulfide is H,S. What is the percent composition by mass of…

A: Step 1: Solution Given,Compound = H2Smolar mass of : hydrogen(H) = 1 g/mol, Sulfur(S) = 32…

Q: With the following data determine the % composition of KNO3 in the unknown sample: Initial Mass of…

A: The question is based on experimental chemistry. We need to calculate percentage potassium nitrate…

Q: Determine the mass of oxygen in a 7.2 g sample of Al2(SO4)3 . Express the mass in grams to two…

A:

Q: Calculations involving Mass (e) The percentage of a particular element in a compound can be…

A: Given, mass of NaCl sample = 18.50 g mass of sodium (Na) in the sample = 7.28 g % composition of…

Q: Mass of empty evaporating dish + watch glass 65.362 g B Mass of dish + watch glass + initial solid…

A: Given A) Mass of empty evaporating dish + watch glass =  65.362 g B) Mass of dish + watch glass +…

Q: If 7.00 g of iron react with 3.00 g of oxygen, what is the empirical formula of the compound formed?…

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Q: Moles and Chemical Formulas Finding the Simplest Formula 1. Mass of empty crucible + cover 2.…

A: We would use the experimental data to calculate the mass of magnesium and compound.  Then to…

Q: 4. Compare the total mass of the reactants with the total mass of the products: Total Mass of the…

A: Given reaction is,  K2CrO4 (aq) + Pb(NO3)2 (aq) →2KNO3 (aq) + PbCrO4 (s)

Q: 3. It is found a certain sample of a compound contains 23.0g of sodium and 35.5g of chlorine. a.…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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: An organic compound weighing 0.6827 g is decomposed, giving 0.2095 g carbon and 0.08436 g hydrogen.…

A: Given the total mass of organic compound = 0.6827 g mass of C = 0.2095 g mass of H = 0.08436 g

Q: 4. A student obtains the following data. mass of clean, dry and empty crucible mass of crucible with…

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Q: For item 1-2 please refer to the problem on the picture. Please answer and choose the correct answer…

A: The balanced chemical equation is                   16 Al + 3 S8→8 Al2S3        16 moles of Al…

Q: #1 #2 #3 Mass of flask + oxalic acid 64. 987 68.455 64.074 Mass of flask 64.681 68.152 63. Fole Mass…

A: The number of moles of solute to the volume of solution in liter is known as molarity.

Q: 27. A compound is 75.7% arsenic and 24.3% oxygen by mass. empirical formula? 75.7 What is the

A: Given, mass of arsenic(As) = 75.7 % = 75.7 g mass of oxygen(O) = 24.3 % = 24.3 g

Q: Percent yield = the Reaction A NaHCO3(s) -> _NaOH(s) + CO2(g) Run 1: Initial grams of NaHCO3 %3D

A: Run 1Mass of products = 84.380 - 81.661 = 2.719 gRun 2Mass of products = 32.267 - 30.742 = 1.525 g…

Q: A student performed an experiment to determine the ratio of H¿O to CUSU, in a SAmple sam hydrated…

A: Given  Experimental calculated formula = CuSO4.4.5H2O  Actual formula = CuSO4.5H2O  Reason for error…

Q: Calculate the percent by mass of each element

A: General formula for calculating percent by mass:- Percent by mass of X in XYZ =( mass of X/total…

Q: 1. a liquid compound was analyzed and i contained 14.5% Carbon and 85.5% Chlorine. What is the…

A:

Q: STEP 1. Calculate the %O in Cr2(CO3)3 to 4 significant figures. %O =  STEP 2. How many moles of…

A:

Q: A sample of bismuth weighing 0.687 g was converted to bismuth chloride by reacting it first with…

A: To Calculate: The percent error in the experimental determination of empirical formula of bismuth…

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

A:

Q: Writing Empirical Formulas from Chemical Formulas

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Q: 1. A chemist has a 60g sample of element X and incrementally adds element Y, known to react with…

A: From the given information,The corresponding equation will be:X   +  Y  →   XY Mass of X = 60g Mass…

Q: 2. What is the percent by mass of each element in the following compounds? Compound % By Mass(for…

A:

Q: A: Read each statement below carefully. Place a T on the line if you think a statement is TRUE.…

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

Q: 51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant…

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

Q: Determine the number of moles in 2.58 kg of lithium Sulfate (Li₂ sou) Balance this equation: -NH3t…

A:

Q: 39. How many grams are in 2.3 x 104 formula units of KNO:? (A) 38.6 grams (B) 102.3 grams (C) 140…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: Question 4 of 37 Determine the amount in grams of KCI that exists in 20.3 g of a solution that…

A: Weight of solution= 20.3 gm  %KCl by mass = 1.14 %

Q: A molecule contains only carbon and hydrogen. The percent hydrogen is 27.45 %. Determine the…

A: The emperical formula of the compound is given below

Q: Use the sample experimental data to calculate the mass of residue (BaCl2)  Mass of pan 15.110 g…

A:

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: Macmillan Learning A 4.91 g sample of a laboratory solution contains 1.04 g of acid. What is the…

A: Given : mass of acid = 1.04 g               Mass of solution = 4.91 g  Concentration (w/w. %) =…

Q: 4) _SnO; + _H; →_Sn +_H;0 3.912 g of Snoz form how many grams Sn?

A:

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.