11. Given the reaction: Al+ He-X+n When the equation is correctly balances, the nucleus represented by X is 30 Si B. 14 C. P D. 30S 16 A. AI

Q: How many moles of Si are there in a sample of Si that contains 3.74x1024 atoms? moles

A: 1 mole of any element contains 6.02 * 1023 atoms of that molecule. Given number of atoms of Si…

Q: 39. A 540-g aluminum rod contains A. 20.0 mol of aluminum B. 540 Al atoms C. 1.2 x 1024 Al atoms D.…

A: A) Moles = Mass / Molar Mass Molar Mass of Al= 26.98 g/mol So Moles of Al= 540 /26.98…

Q: krom l60 to 10%, How much heai

A:

Q: The composition of a commercial cold remedy mixture is 87% aspirin, 7% caffeine, 6% vitamin C. What…

A: Mass of mixture that contains 5 g Caffeine = ? % of aspirin = 87 % % of caffeine = 7% % of vitamin C…

Q: The number of moles of S in 2.8 x 1024 atoms of S is: 1.0 mole of S atoms 4.6 moles of S atoms 3.1…

A:

Q: inside the front cover of this book to calculate the mass in grams of each of the following samples.…

A: Note : As per our guidelines we are supposed to answer only first 3 subparts of first question.

Q: 1. Determine the molar mass of the following: A.C6H12O6 B.(NH4)2CO3 C.Fe3(PO4)2 D.Zn(C₂H302)2…

A: Mole can be defined as the standard unit for measuring large quantities of very small entities such…

Q: of C2H6 is burned veight of Carbon=1

A:

Q: What is the ratio of moles Cu to moles Fe .....IN.... 2Fe + 3CuSO4  -->  Fe2(SO4 )3  + 3Cu and…

A: Given reactions:

Q: The reaction of sulfur powder (S8) with oxygen gas (O2) results in the formation of one of many new…

A: We know that, molar mass of O = 15.999 g/mol molae mass of S = 32.065 g/mol

Q: 0.6 moles of strontium phosphate contains how many oxygen atoms?     A. 0.8 NA   B. 2 NA   C.…

A: Answer: Molecular formula of Strontium Phosphate: Sr3(PO4)2

Q: A. Br HBr (excess) پنی من من بنے Br B. Br Br Br Br + Br Br D. Br Br

A: Addition reaction of HBr to an alkyne

Q: 3 tries left Boron has two naturally occurring isotopes: 10B has a mass of 10. 01 amu, and "B has a…

A: The question is based on the concept of isotopic abundance. we have to identify how much 11 boron…

Q: The element X in a compound was involved in a chemical reaction. After the reaction was completed,…

A: Given: Element X undergoing a chemical reaction.

Q: Mass spectrometry detects what? A. B. Radicals lons Quarks E. Cations Anions OF. Molecules

A: The number of electrons that are removed determines charge on molecule and mass divided by charge…

Q: Fill in the lines

A: 1.) Write Down the Unbalanced Equation: Begin by writing the chemical equation for the reaction,…

Q: When the following equation is balanced correctly, what is the coefficient in front of Ba(NO3)2?…

A: Steps on how to use the trial and error method to balance the chemical equations:Write the…

Q: What is the average mass (in grams) of a single nitrogen dioxide molecule? A. 3.6 x 10-26 g B. 2.77…

A: Since mass of 1 molecule  = molar mass / Avogadro's number Molar mass of Nitrogen dioxide (NO2) = 14…

Q: How many carbon atoms are there in 10 Ibs of sugar, CH,,0̟,? 22 11 Select one: a. 159 atoms O b. 8.0…

A: Mass of C12H22O11=10lbs Formula used- 1 lbs=4.54kg 1kg=1000g Mole=mass/molar mass No of carbon…

Q: 1. How many moles of Sc are there in a sample that contains 14.6 grams of scandium? moles 2. How…

A: The moles and mass of the element are related to each other by the formula given below as;…

Q: Ammonia (NH,) gas and oxygen (0,) gas react to form nitrogen (N,) gas and water (H,O) vapor. Suppose…

A:

Q: A compound of hydrogen and carbon is 92.3% carbon, If 40 g of hydrogen is reacted with 135 g of…

A: Molecular mass is the sum of the masses of all the atoms in a given molecule. Percentage composition…

Q: An experiment was performed in lab to produce 10.3 grams of Ca(OH)2, however the calculations…

A:

Q: 30. An aluminum alloy contains 0.091 mol aluminum and 0.038 mol of magnesium. Determine the mass…

A:

Q: How many oxygen atoms are there in 2.10 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) %3D O a. 4.82 X…

A:

Q: MCQ 20: Each chlorine ion tends to destroy ozl molecules in an amount A. million B. trillion C.…

A: OPTIONS ARE :

Q: number

A: According to the question, the atomic number of oxygen is 8 and the atomic number of sulfur is 16.…

Q: Mass, S s of 32.07 g).

A: Number of moles is calculated by dividing the given mass with molecular mass. Given molecular mass…

Q: How many oxygen atoms are there in 3.15 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) O a. 2.41 X…

A: Given that,  Amount of Al2(S2O8)3 = 3.15 g Molar mass of Al2(S2O8)3 = 630.34 amu Moles of Al2(S2O8)3…

Q: Which has more mass, 1 mol of gold or 1 mol of silver? The mol of Ag has more mass The masses cannot…

A: Mole can be defined as a standard unit which is used for measuring  large quantities of very small…

Q: Atom Inventory Mn: Ag: NO3: 7. type your answer... Mn+ Mn + AgNO3 type your answer... AgNOS Ag +…

A: Answer: In the given question a single displacement reaction between Mn and AgNO3 is taking place…

Q: 16) What is the mass of 4.9 moles of N2O5?   a.   0.5292g   b.   52.92g   c.   5.292g…

A: One mole of any species contains its molar mass and one mole of any species contains avagadro number…

Q: One mole of calcium contains____calcium atoms.

A:

Q: loon 15 OH P, B₂ 11 14 DIBAL-H CO₂ H 12 | LAM46 LIAH 13

A: Conversion of one organic functional group to another one is called as Functional group…

Q: How many grams of magnesium are required to produce 3.000 kg of Si? (At mass: Mg=24.31; Si=28.09)…

A:

Q: What is the molar mass of calcnum chloride hexahydrate! a 75.53 g'mol, b.111.0 gmol c 1170 gmol d.…

A: The answer to the following Question is:

Q: 15. How many atoms are in a sample of 10.0 grams of silver? a. b. 5.58 x 1022 atoms 3.06 x 1022…

A: mole is equal to weight of substance divide by it's molar mass

Q: If 4.8 g of sulfur react with an excess amount of fluorine  according to the 'equation,' what mass…

A: The reaction taking place is  S + 3 F2 ⟶ SF6  Given : mass of S reacting = 4.8 g

Q: 1. N + 3H How many moles of hydrogen are needed to completely react wiih two moles of nitrogen? 2NH,

A: Note: According to our guidelines we are supposed to answer only one question.

Q: How many atoms of Hydrogen are in 1.96 moles of Hydrogen?

A:

Q: What can be said about 1 mole of Ag and 1 mole of Au? A. They have the same molar mass. B. They…

A: What can be said about 1 mole of Ag and 1 mole of Au? A) They have the same molar mass. B) They…