4) An evil scientist is attempting to split up uranium hexafluoride, UF6, into its componer elements, uranium, U, and fluorine, F. Once the process was complete, he was left wit 70.5g of uranium and 36.3g of fluorine. What mass of the original uranium hexafluorid UFs did he have?

Q: When 6.00 g of sulfur are combined with 6.00 g of oxygen, 12.00 g of sulfur dioxide (SO2) are…

A: Molecular mass of sulfur = 32 g /mol, means 32 g in 1 mol.Molecular mass of O2 = 32 g / mol, means…

Q: A sample of mercury with a mass of 114.0 g was combined with 12.8 g of oxygen gas, and the resulting…

A: The reaction taking place is  2 Hg + O2 -----> 2 HgO Hence from the above reaction we can say…

Q: Ammonia (NH3)(NH3) and hydrazine (N2H4)(N2H4) are both binary compounds of nitrogen and hydrogen.…

A: Ammonia is formed according to the following balanced Chemical equation-   N2 + 3H2   ---> 2NH3…

Q: Boron has two naturally occurring isotopes, ¹⁰B (19.9%)and ¹¹B (80.1%). Although the B₂ molecule…

A:

Q: the atomic masses of 10B and 11 B are 10.012938 and 11.009305 amu, respectfully. The average atomic…

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Q: What is the mass of a single bromine molecule, Br 2?

A: The bromine molecule is composed of two bromine atoms that are covalently bonded to one another.

Q: In a combustion reaction, 46.0 g of ethanol reacts with 96.0 g of oxygen to produce water and carbon…

A:

Q: How many grams of CH3CO2C5H11 must be weighed out to provide 3.22 x 1023 atoms of H? When you input…

A: Mole in terms of particles : 1 mol = 6.022 x1023 particles  where particles =…

Q: 4. What is the mass of 7.75 moles of magnesium metal?

A:

Q: How many B atoms are there in 5.1 mols of B? Please give your answer in terms of scientific notation…

A: Solution The mole thought may be a convenient technique of expressing the number of a substance. Any…

Q: A gallon of water has a mass of 3.79 kg. How many moles of water (18.02 g/mol) is this?

A: Given : Mass of water = 3.79 Kg  And molar mass of water = 18.02 g/mol

Q: 3.123 In the formation of carbon monoxide, CO, it is foundthat 2.445 g of carbon combine with 3.257…

A:

Q: 9.21 x10^19 molecules of hydrogen gas,(H2) are equal to how many grams of hydrogen gas?

A: Number of molecules = 9.21 × 1019 molecules Avogadro’s constant = 6.022 × 1023 molecules Numbre of…

Q: What is the mass % of H in C9H10N2?

A: Mass percentage is a kind of expressing the concentration of a solution. It gives an information…

Q: 5. How many atoms of uranium are there in the 3.69 g of pure uranium that Iran has produced?

A: Answer for the following question is

Q: What mass of ethanol (C2H6O) would contain 7.0 x 1026 atoms of carbon?

A:

Q: According to the law of multiple proportions, if 12 g of carbon combine with 16 g of oxygen to form…

A: According to the law of multiple proportion, two atoms combining in different ratios to form…

Q: If the mass percentage of O in a sample is 68% and the total mass of the sample is 4.128 Kilograms-…

A:

Q: Consider Cl2+F2=CLF3 (ΔH°f = -164.65 kJ/mol) . 1. If 42 g of F2 is combined with 142 g of Cl2, how…

A: Balanced chemical equation: Cl2  +   3F2  ------>   2ClF3 Number of moles = Mass/molar mass

Q: Phosphorus burns in air to produce a phosphorus oxide in the following reaction: 4P(s) + 50,(g) –→…

A:

Q: 3. Mg(NO,), Mass of Mg- 24.3 x 1- 243 g/ Mass of N- Mass of O-

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

Q: In an experiment, the reaction of 100.0 g of iodine produced 144.9 g of a compound formed from…

A:

Q: How many grams of potassium permanganate contain 5.48 x 1020 atoms of oxygen?

A: Given: Number of atoms of oxygen in KMnO4 sample = 5.48 × 1020 atoms.

Q: natural rubidium has the average mass of 85.4678 AMU and is composed of isotopes Rb 85 (mass =…

A: Average atomic mass = ∑i=1XiMiWhere X = mole fraction of the isotope and M is the mass of the…

Q: What mass of ZnCO3 contains 3.11x1022 O atoms?

A:

Q: How many moles would 1.00 x 10^23 molecules of methane(CH4) represent

A: Given  Number of molecule of CH4  = 1 × 1023 molecule  Number of mole = ?

Q: What is the mass, in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Molar mass of C = 12.01 g/mol mass(C)= 1.076 g number of mol of C, n = mass of C/molar mass of C…

Q: Given that 4NH3 + 5024NO+ 6H2O, if1.92 X 10 molecules NH were made to react with an excess of oxygen…

A: Given,  4NH3 + 5O2 ➝ 4NO + 6H2O Number of molecules of NH3 react = 1.92 × 1021 molecules Excess…

Q: What mass of CdS is produced if 8.47 g cadmium reacts with 2.51 g of sulfur?

A:

Q: A sample of a compound synthesized and purified in thelaboratory contains 25.0 g hafnium and 31.5 g…

A: GIVEN: Mass of Hafnium = 25.0 g Mass of tellurium=  31.5 g Mass of Hafnium present in the sample…

Q: What is the mass of 1.50 moles of Cl2?

A: Given :- number of moles of Cl2 = 1.50 mol  To calculate :- mass of Cl2 (in g)

Q: 3. (a) Magnesium oxide was formed when the metal burns in air. (i) If 1.25 g of magnesium oxide…

A: Magnesium burns in the air to form magnesium oxide. The reaction occurs as follows: Mg (s) + O2( g)…

Q: 9. If you have 9.407 x 1023 atoms of lead, how many grams of lead (IV) phosphate can you make? 10.…

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Q: What mass of cerussite (PbCO3), would contain 35.0 grams of lead?

A:

Q: 7. What is the mass in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Given mass of Carbon = 1.076 g Molar mass of Carbon = 12.01 g/mol Molar mass of C6H8O6 = 176.12…

Q: Lithium nitride reacts with water to produce ammonia and lithium hydroxide according to the equation…

A: Given,ND3 = 140 mg (or) 0.14 gMolar mass of ND3 = 20.042 g/molMolar mass of D2O = 20.027 g/mol

Q: 2. The volume of the nucleus of a carbon atom is about 9.9 x 10-39 mL. The molar mass of carbon…

A: Given: Volume of carbon nucleus atom = 9.9 × 10-39 mL. And molar mass of a carbon atom = 12.00…

Q: Part B Magnesium makes up 2.10 % by mass of the Earth's crust. How many grams of magnesium are…

A: Mass percent :-  The mass of a component in grams present in 100 grams mixture of all components is…

Q: The mass ratio of sodium to chlorine is sodium chloride is 0.649:1.  A sample of sodium chloride…

A: 2NaCl ------> 2 Na + Cl2 Mass ratio of sodium to chlorine is sodium chloride is 0.649:1. Sample…

Q: A mixture of 50.0 g of S and 1.00x10^2 g of Cl2 reacts completely to form S2Cl2 and SCl2. What mass…

A: When S react with Cl2, it will form S2Cl2 and SCl2 so first write reactant and product then balanced…

Q: What is the average mass, in grams, of one Zn atom?

A: Given :- Number of atoms of Zn = 1 atom  To calculate :-  Average molar mass of single atom of Zn…

Q: 1 gram of sulfur 0.5 gram of sulfur 2 moles of suilfur 6.02 x 1023 atoms of sulfur

A: 1 mole of substance = 6.022 × 10²³ atoms Mass of 1 mole of substance is equal Molar mass of the…

Q: How many moles would 1.00 x 103 molecules of methane ( 1. CH4) represent?

A: Avogadro number (NA) 1 mole of a substance contains 6.02×1023 molecules 1 mole of O2 contains…

Q: Question attached

A: The given data contains, mass of carbon C = 0.273 g mass of oxygen O =0.727 g

Q: Calculate the mass of antimony(III) lodide, Sblg, that can be produced by the reaction of 143 g of…

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Q: The British chemist Joseph Priestley prepared oxygen in 1774 by heating mercury(II) oxide, HgO.…

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Q: 1). (NH4);PO4 + Pb(NO3)a > Pb3(POa)a +. _NH,NO3 23.98 grams of lead (IV) nitrate are needed to…

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Q: To prevent the presence of air, noble gases are placed over highly reactive to act as inert…

A: The partial pressure of a gas in a mixture of gases is equal to the total pressure multiplied by the…

Q: = How many moles are there in 91.1 g of uranium, U?

A:

Q: Mass = 1kg, Speed = 2m/s. KE = ?

A: