A compound containing uranium and fluorine with mass 1.760 g was treated with excess calcium nitrate to precipitate all of the fluorine. The precipitate of CaF2 had a mass of 1.170 g. What is the experimental percent by mass of fluorine in the original uranium sample?

Q: b. silver nitrate and ammonium selenate + c. copper(II) sulfate and barium nitrate + d. calcium…

A: Answer is given below

Q: Identify .It is the technique of separation and identification of chemical substances by a moving…

A:

Q: A student is given a 1.8686 g of an unknown copper compound. Following isolation by displacement by…

A: Given: Mass of Cu = 0.3685 g Mass of compound = 1.8686 g

Q: If 1.03 mole of NiCl2 is mixed 1.52 mole of K3PO4, how many moles of Ni3(PO4)2 will form?

A: Moles of NiCl2 = 1.03 Moles of K3PO4 = 1.52 Moles of Ni3(PO4)2 =?

Q: 1. How many grams of solid will remain from the decomposition of 9.65 x 10 22 molecules of ferric…

A:

Q: Write the equation then balance for the following: a. Copper(II) sulfide is oxidized by oxygen gas…

A: in Balanced chemical equation total numbers of atoms are same on reactent and products side.

Q: 2. 236 kg of iron ore (Fe₂O3) is smelted to produce iron metal; which of the following is a possible…

A: Smelting of iron ore produce iron metal. The quation for the balanced chemical reaction for this…

Q: Thirteen grams of titanium metal react with sixty grams of bromine. (i) Calculate the mass (in gram)…

A: The balanced chemical reaction is as follows: Ti(s)+2Br2(l)→TiBr4. The mass of Ti=13 g. The mass of…

Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg*²). The solution is…

A: Given: Mass of sample = 5.276 g The solution is diluted = 500 mL three 100 mL of solution titrated…

Q: Barium metel was quantitatively precipitaded from 1.52g sample of BaCl2+2H2O. The mass of the barium…

A: Mass percentage = (mass of solute / mass of solution) x 100%

Q: How many grams of magnesium oxide can be produced by reacting 0.248 g magnesium that is 97.5% pure…

A: Given mass of Magnesium = 0.248g% purity of Magnesium = 97.5%No.of molecules of oxygen = 5.36 x…

Q: A sample of a substance with the empirical formula XBrą weighs 0.5761 g. When it is dissolved in…

A:

Q: Barium metal was quantitatively precipitated from a 1.52 g sample of BaCl2-2H2O. The mass of the…

A: Given: Mass of the sample BaCl2.2H2O =1.52g Mass of Barium collected = 0.844g

Q: A 0.652-g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid…

A: Given data contains, Mass of pure strontium halide is 0.652 g. Mass of solid strontium sulfate is…

Q: Consider the balanced reaction of magnesium and oxygen. 2 Mg + O2 → 2 MgO What mass, in grams, of…

A: Given:Mass of Mg = 1.97 gMass of O2 = 2.80 gA balanced chemical equation is a representation of a…

Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

A:

Q: Assuming the full 0.01924 moles of tin(Il) reacts, what mass of tin was present in the original ore?…

A: Here we have to determine the mass of tin present in ore if full 0.01924 mole of Sn2+ reacts.  This…

Q: Suppose that a device is using a 10.0-mg sample of silicon that is doped with 1 x 10-5% (by mass)…

A:

Q: How many grams of alum will form if 0.3812 g of Al reacts completely?

A: Given, Mass of aluminum, Al = 0.3812g. The reaction of formation of alum from aluminum is as…

Q: A student is given a 1.3002 g of an unknown copper compound. Following isolation by displacement by…

A:

Q: If 0.576 g of copper(II) sulfate is allowed to react with 0.522 g of sodium carbonate, what will be…

A: The balanced reaction is given as: CuSO4+Na2CO3→CuCO3+Na2SO4

Q: What mass of Na2SO4 is required to precipitate all of the lead cations found in an 18.5 ml sample of…

A:

Q: A mixture of CaCO₃ and CaO weighing 0.693 g was heated to produce gaseous CO₂. After heating, the…

A: Molecular mass The molecular mass is the mass of a given molecule. It is measured in Daltons. The…

Q: 2. A 0.8102-g sample of impure Al,(CO3)3 decomposed with HCI; the liberated CO, was collected in CaO…

A:

Q: The color of this substance is.... H3C CH3 CH.O H N-O H3C CH3

A: The given complex is Ni(DMG)2

Q: 4. A student completely dissolved 0.51 g of copper in concentrated nitric acid. After a series of…

A:

Q: The calcium from a sample of limestone weighing 699mg was precipitated as CaC2O4 and ignited to CaO…

A: The ignition of calcium oxalate can be described as follows: CaC2O4  →  CaCO3  + COCaCO3   →  CaO  +…

Q: A 4.67 g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid strontium…

A: Given, A 4.67 g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid…

Q: One student weighed 1.200g of Cupowder into a crucible and heated it to produceCuO. He was able to…

A: Moles of Cu = Mass/ Molar Mass moles of Cu =1.200 g Cu  / 63.546 g/mol                       =…

Q: A recently created chromium-boron compound is a component of Ironman’s armor. It was created by…

A: Given : Mass of Cr reacted = 4.372 g And mass of compound formed = 4.917 g Assuming the empirical…

Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: A question about elements that is to be accomplished.

Q: How many grams of alum will form if 0.3392 g of Al reacts completely?

A: Given: mass of Al = 0.3992 g molar mass of Al = 26.98 g/mol molar mass of alum (hydrate)…

Q: c

A: 0.3146 g sample of a mixture of NaCl and KBr 0.6824 g of precipitate mixture of AgCl and AgBr

Q: You reduce a 0.9355g solid platinum (IV) oxide with 0.0879g hydrogen gas to yield elemental platinum…

A: Limiting reagent is defined as the reactant which is present in a limited quantity in the reaction.…

Q: A 1.740g sample of silver was burnt in an atmosphere of sulphur gas. Upon completion of the reaction…

A: Given:Mass of silver =  1.740gMass of silver sulphide = 2.000 gWe need to determine the empirical…

Q: 19. A product weighing 12.11 g was isolated/obtained in the laboratory. The maximum amount of…

A: Given,  A product weighing 12.11g was obtained in the experiment, the maximum product can be…

Q: For the reaction N, + 3H, 2NH, what is the Mole ratio of nitrogen to hydrogen? t. Mole ratio of…

A: In a balanced chemical equation , the stoichiometric coefficients of reactants and products…

Q: What is the mass percentage of Na in NaNO₃?

A:

Q: What is the mass percentage of Na in NaF?

A: The mass percent of an element is defined as the mass of that particular element present in the…

Q: How many grams of carbon dioxide can form when a mixture of 5.00 grams ethylene and 5.70 grams of…

A: Combustion is the process of burning in aerobic  condition . Products of combustion are water and…

Q: A student is given a 1.3308 g of an unknown copper compound. Following isolation by displacement by…

A: Given,      Mass of the unknown Copper Compound =1.3308 g      Mass of Copper (Cu) Metal recovered…

Q: If equal masses of strontium and lithium were reacted with excess hydrochloric acid, which…

A: Answer: This question is based on the molar where we have to convert the molar ratio of Li and Sr…

Q: 2.) 50.94g/mol 32.00 g/mol 149.88g/mo! 4Vs) + 30z0) 2V20as) a. Calculate the theoretical yield of…

A: The given reaction is as follows: 4V(s) + 3O2(g) → 2V2O3(s) The mass of vanadium metal = 220 g The…

Q: Which of these weighing forms provides the greatest mass of precipitate from a given quantity of…

A: A)      Na2U2O7 ( Molar Mass = 634.0 g/mol)                         % Uranium = 476 g/mol/ 634 g/mol…

Q: If the original sample of Zn had a mass of 1.4 g, what mass of ZnCl, can be produced in the…

A: Mass of Zn = 1.4 gms Molecular mass of Zn = 65.38 gm/mol Molecular mass of ZnCl2 = 136.2865.38…

Q: b. How many grams of copper(i) sulfide could be produced from 28.0 g of copper(1) chloride reacting…

A: Given :- mass of copper(I)chloride reacting with excess hydrogen sulfide = 28.0 g  To calculate :-…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".