4. Mass of beaker plus anhydrate 5. Mass of anhydrate 6. Mass of water

Q: (MC) Identify the correct mathematical calculation to determine the number of moles in 9.85 grams of…

A:

Q: Count the atoms in the following equation. H3CO3 H O:

A: Interpretation: The number of atoms in the given molecule is to be counted.

Q: One of the hydrates of NazCr0, is sodium chromate decahydrate. A 56.6 gram sample of NazCr04 10 H,O…

A:

Q: A 100 mg sample of a compound containing C, H, and O is analyzed. All the carbon is converted to…

A: We have to calculate empirical formula, molecular formula and molar mass.

Q: How would I Calculate the experimentally determined mass% oxalate and how would I also Determine the…

A: we take any random exapmle: 6H+ + 5(COOH)2 + 2MnO4- ======= 10CO2 + 2Mn2+ + 8H2O

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: P Pearson ion Inc. All rights reserved. | Terms of Use | Privacy Policy Permissions | Contact Us…

A: Calculation for number of moles of MgCl2:

Q: Oxygen 15.999 Hydroge 1.008 12.011 2. C2H4 +3 O2-- 2 CO2+2 H2O Mole Ratio Moles Moles of A Meles of…

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Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

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Q: Please answer the following question

A: Given data: The mass of water is 1.23 mol. To convert: The mass from moles to grams.

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: Sulfur has four isotopes and has an atomic mass of 32.066 amu. The four isotopes have the following…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: e) Using your answers to calculations b and d and the above chemical equation, determine the mole…

A: Answer: When hydrated salt of magnesium sulfate is heated then it loses the water molecule and forms…

Q: Time's Up! Subi Consider une Toiowin9 chemicar reaction. 3 Zn(C2H;O2)2(aq) + 2 Na3PO4(aq) → 6…

A:

Q: REQUIRES WORK. What is the percent composition of oxygen in serine? 45 70% 34.30% 13 30% 6.71% A…

A: Mass percent of a substance is given by, Mass percent = (Mass of substance)(100)Total mass

Q: Select the coefficients necessary to balance each equation. Choose a coefficient for every compound.…

A: The coefficient for every compound is chosen such that the number of moles of each element present…

Q: determine the quantity of moles in 4.21 x 1023 molecules of CaCl2. List the steps clearly. Use…

A: Given,  molecules of CaCl2 = 4.21 x 1023 molecules

Q: The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2%0 At. wt. C= 12 g/mol O=…

A: The ratio of the distinct atoms which are presents in a compound in form of simplest positive…

Q: Please help me with tyhis problem and the right sig fig because I got as the molar of the compound…

A: This are some rules of significant figure you should know-

Q: a. How many ATOMS of phosphorus are present in 7.30 grams of phosphorus trichloride? atoms of…

A: a. The mass of phosphorous trichloride is 7.30 g.To find the atoms of phosphorous.b. The molecules…

Q: A chemist determines by measurements that 0.0750 moles of bromine liquid participate in a chemical…

A: Moles of bromine liquid = 0.0750 molMolar mass of bromine liquid = 159.8 mol/L

Q: Actual weight of Na,CO, used mass Na,CO, + beaker = 1니3.525 %3D mass beaker = 142.313 g %3D mass…

A: For Na2CO3, Molecular weight=2(Atomic weight of Na)+Atomic weight of C+3(Atomic weight of O)

Q: Determine the number of moles in 4.49 x 1023 formula units of BaBr2.

A: Given data 4.49×1023  formula units of BaBr2 We know Moles = Number of formula units / Avogadro…

Q: 26. Calculate the empirical formula from the information given below: a. 63.5% Fe; 36.5 % S d. 25.9%…

A: Calculation of empirical formula:   As per our guideline we have to answer first three questions…

Q: 1. Explain the relationship between the empirical and molecular formula. Include an example to…

A: Empirical Formula:The empirical formula represents the simplest, most reduced ratio of the different…

Q: 8. Calculate the number of moles in a sample containing 1.85 x 1034 molecules of water.

A: Given that: Molecule of water = 1.85 × 1034 molecules Number of moles = ?

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

A: 2.7g/cm3x13.2cm3x 1 mol27 g=1.32 mol

Q: On analysis of a compound it was found contain 29.1% of sodium, 40.5% sulphur 30.4% oxygen. What is…

A: Data is given and empirical formula is asked. I write a table form, so u understand better.

Q: 39. Calculate the number of molecules present in each of the following samples. a. 4.75 mmol of…

A: To solve this problem we have to calculate the number of molecules of the given sample .

Q: A sealed chamber contains 7.50 g CH4 and 14.5 g O2. The mixture is ignited producing CO2 and H20.…

A:

Q: How many molecules are there in 32.5g of chlorine molecule (Ch) (RMM of Cla= 71, Avogadro number %3D

A: Since we know that one mole of any substance contains 6.022 × 1023 molecule  And  Number of mole =…

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

A:

Q: Step 1a: When percentages are given, assume that the total mass is 100 grams to determine the mass…

A: Given : % N in sample of unknown compound = 66.6%   To find : Moles of N in sample of unknown…

Q: Calculate the mass% composition of each of the following (show your work below)   a) 6.38g of N…

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Q: Empirical Formula Proof for C₂H302, a compound containing 57.838% carbon, 3.641% hydrogen, and…

A: Given

Q: What's the mass of 0.761 moles calcium fluoride? Do not include units in your answer on Moodle.…

A: Given, moles of calcium fluoride (CaF2) = 0.761 moles mass of calcium fluoride (CaF2) = ? Note:…

Q: If you have 170 grams of phosphorous trihydride (PH3) how many moles of phosphorous trihydride do…

A: The mass of phosphorus trihydride (PH3) is = 170 g We know that the molar mass of phosphorus…

Q: 12) How many grams are there in 3.50 moles of AICI,? 13) How moles are there in 4.50 x 1022…

A:

Q: . A compound with an empirical formula of C20H4 and a molar mass of 88 grams per mole. What is the…

A: 3) Given: Empirical formula = C2OH4  And molar mass = 88 g/mol.

Q: SS ASSIGNMENT FOR 1/2 x O 43.SC PL Mole Calculations A…

A: Answer  Moles of CO2 can be calculated by formula  Moles = mass in…

Q: Calculate the empirical formula of the alum. Show (URGENT NEED HELP FAST) calculations for moles a…

A: (For Trial 1)    Given that -  Mass of beaker + alum, KAl(SO4)2.xH2O = 50.249 g  Mass of beaker =…

Q: How do you solve question 2?

A: Compound is made up of two or more than two elements or atoms in a fixed stoichiometric ratio. The…

Q: can I get more infor on how to find the empirical formula and all the steps in between?

A:

Q: What is the percent Xenon in Xe(OH),? Show your work.

A: Data: The molar mass of Xe(OH)2= 165.307 g/mol The mass of Xe= 131.293 g To find: The percent of…

Q: A chemist weighed out 6.64 g of gold. Calculate the number of moles of gold she weighed out. Round…

A:

Q: Enter the result of this calculation in lowest terms. ()))) - 32 Chemistry Example How many grams of…

A: 1) The fraction :  332122543 2) Given mass of Na = 462.0 g Molar mass of Na = 22.99 g/mol

Q: Please show all work. 1. Find the mass of 4.52 x 10^23 particles of each of the following: N2…

A: Hello. Since the question contains multiple parts, the first three parts are solved. In case the…

Q: Calculating and using the molar mass of diatomic elements A chemist determines by measurements that…

A: Explanation given as follows