Calculate the percentage by mass of F in C2H2F4

Q: Calculate the weight of lime (CaO) obtained by heating 2000kg of 95% pure lime stone (CaCO3).

A: Given, 2000kg of 95% pure lime stone

Q: By Volume, % By Mass, and Parts Per Million 6 By Volume 100% par (CH COOH HUUSolUion with a volume…

A: The concentration in terms of v/v is calculated by the formula: Concentration=Volume of soluteVolume…

Q: Calculate the percentage by mass of the indicated element in the following compounds: carbon in…

A: Percent by mass or percent by weight refers to the total mass of the one component divided by the…

Q: b. What volume of 2MNAOH will react with 34.0 g of FeCl3?

A: b) mass of FeCl3 = 34.0 g molar mass of FeCl3 = 162.2 g mol-1

Q: If a fuel contains 86% C, 9% H2, 1% S and 4% ash (silica) by mass, determine: (b) (i) the total…

A: SOLUTION : CARBON Mass ratio C + O2 = CO2 12 + 32 = 44 Hence 0.86kg of C need (32/12)x0.86=2.293kg…

Q: What is the mass percentage of C in caffeine, C18H10N4O2

A: The mass percentage is calculated by the formula, mass%=mass of elementmass of compound×100

Q: The first inert gas compound to be synthesized was XePtF What is the percentage of xenon in the…

A:

Q: What mass, in grams, of C2H2 is needed to form 210.4 g of CO2? Assume excess oxygen.    2C2H2(g) +…

A: Ans. 62.16 g C2H2 required to form 210

Q: What is the percentage composition of Cr2O3

A:

Q: 0.634 g of commercial bleach solution required 13.24 ml. of 0.0732 M sodium thiosulfate(Na2S203)…

A: Mass percent of an element  is defined as the mass of element present in total mass of the compound.…

Q: When the follow equation is balanced, what coefficient would fall before the formula "HI"? HI +…

A: The given reaction is, HI + H2SO4 → H2S + I2 + H2O.

Q: What volume of 1.85 M KOH will react completely to 100.0 g of Al2S3?

A: Here we are required to find the volume of 1.85M KOH required to react with aluminum sulphide

Q: Calculate the number of grams of SO2 that must react to produce 350. g of SO3.

A: 2SO2 + O2 ---------> 2SO3 Given weight of SO3, W(SO3) = 350 g Molecular weight of SO3, Mwt(SO3) =…

Q: What mass of CO is required to react with 651 g of Fe2O3 ?

A: The balanced chemical equation for the given reaction is,

Q: How many grams of solid Ca3(PO4)2 can be formed from a reaction of 51.8 mL of 0.754 M CaCl2 and 21.5…

A:

Q: What is the equivalent weight of Na₂S₂O3.5H₂O? Na = 23.0, S = 32.1, O = 16.0, H = 1.0

A: finding the equivalent weight of Na2s2o3.5h2o

Q: Calculate the percentage of NaOCl Mass of NaOCl in sample: 0.8933g Net Volume of Na2S2O3: 24mL…

A:

Q: 011: calculate mass needed to prepare 5.0L of 0.10N Na,CO,(105.99g/mol) from standard solid.

A:

Q: Calculate the number of moles in 16.0g of Fe2O3.

A:

Q: Calculate the percentage (%) of C and O in C5H10N2O3

A: Mass percentage of an element= (mass of element in one mole of compound/mass of compound)×100 Given…

Q: What mass of O2 can be made from heating 125 g KCLO3?

A: Answer:- This question is answered by using the simple concept of writing the chemical equation and…

Q: Vanadium can be obtained by processing VO2 Which is 61.42% vanadium  and 38.58 % Oxygen. What mass…

A: Provided %of V in VO2= 61.42% Provided % of oxygen in VO2= 38.58% Let (w) mass of VO2 is needed to…

Q: 2 NaClO3 → 2 NaCl + 6O2 balanced or not balanced

A: Given  Reaction 2NaClO3   →  2NaCl  + 6O2 Reaction is balanced or not = ?

Q: Find the percentage composition by mass of EACH COMPOUND. Given: Raw Materials: 500 g calcium…

A: Actual yield is the amount of product that is obtained when reaction takes place in a laboratory…

Q: Calculate the percentage of crystallization water and the number of water molecules in the compound…

A: Given: Weight of the sample before heating= 2.0 g Weight of the sample after heating= 1.3 g The…

Q: Calculate the theoretical percentage of water in Cu2SO4·2H2O (Molar mass of the hydrate is 259.19…

A:

Q: How many moles of silver chromate will be produced from 143 g of silver nitrate?

A: Number of moles of a substance is given by the ratio of mass of the substance to that of the molar…

Q: 5. How many grams of oxygen can be produced from the decomposition of 100.0 g of KCIO,?

A: Question 5) Given, Mass of KClO3 decomposes = 100.0 g Mass (in grams) of Oxygen gas produced = ?…

Q: Vanadium can be obtained by processing VO2 Which is 61.42% vanadium and 38.58 % Oxygen. What mass of…

A: The answer to the following question is-

Q: Calculate the oxidation state of carbon in CH3OH

A:

Q: What volume of 2MNaOH will react with 34.0 g of FeCl3?

A: Moles of FeCl3 = given massmolar mass=34.0162.5=0.21 mol  Balanced chemical equation: FeCl3    +  3…

Q: What is the mass percentage of C in caffeine, C₈H₁₀N₄O₂?

A: The concentration of an element in a compound or mixture is represented using mass percent. The mass…

Q: Marble is composed primarily

A: CaCO3 is an ionic compound thus it gives ions when dissolved in water. Dissociation is as: Ksp…

Q: What is the mass percentage of C in CH₃CH₂OH? Provide an answer to two decimal places.

A:

Q: The number of moles and the mass of Mg required to react with 5.00 g of HCl and produce MgCl2and…

A: Since you have posted sub parts question. We have solved First 3 sub parts for you. If want any…

Q: How many mg of iron are present in a 236.5 g ore sample containing 0.15% iron by mass?

A: We need to first calculate the mass of iron present by mass in the given quantity of ore, and then…

Q: What is the mass percentage of C in caffeine, CsH1oN4O2? Provide an answer to two decimal places.

A: Mass percentage of Carbon in Caffeine is 6.18%

Q: Find the oxidation state of S in S2O32-

A: The sum of the oxidation states of all the elements in a species is equal to the charge on that…

Q: Calculate the mL of oxygen produced from 0.475 g of potassium chlorate at STP. 2KClO3 ⟶⟶ 2KCl + 3O2

A: Given that : Mass of KClO3 = 0.475 g The molar mass of KClO3 is 122.55 g/mol

Q: What is the mass percentage of C in codeine, C18H21NO3?

A:

Q: Calculate the percentage composition of Ca in CaSO4.

A: Molecular weight of CaSO4 = 136.14g/mol Molecular mass of calcium = 40.078g

Q: calculate grams of ammonia produced when 23.5 dm³ of N2 @STP reacts with excess H2

A:

Q: 250% Explain why KCI is an ideal salt to be used in salt bridge.

A: Dear student I have given answer to your question in the image format.

Q: 1. Calculate the molar mass of the following compounds. a. magnesium phosphate b. sodium sulfide c.…

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

Q: calculate the theoretical percent purity of the purified crystal

A: Purified crystals are usually obtained via hot filtration method. Given: Initial mass of A = 12 g…

Q: What volume (in L) of 1.6 M Na₃PO₄ would be required to obtain 0.56 moles of Na⁺ ions?

A: Molarity is defined as total number of moles of solute present in 1000 ml of solution Molarity =…

Q: What volume of O2 (MW = 32.00 g/mol) at STP is required for the complete combustion of 152.26 g CS2…

A: We have to calculate the  volume of O2 (MW = 32.00 g/mol) at STP is required for the complete…

Q: Determine the oxidation state of sulfur in SF6, SO2F2, and KHS.

A:

Q: You need to calculate the number of P₄ molecules that can formfrom 2.5 g of Ca₃(PO₄)₂. Explain how…

A: Solution;-  No. of atoms = No. of P atoms in 1 P4 molecule × No. of molecules No. of molecules =…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.