A student synthesizes tin oxide to create a compound with generic formula SnxOy. She does this by combining 30.80 g of tin and when the tin oxide product is produced, the total mass of the product is 39.10 g. Divide the moles of oxygen by the moles of tin and examine the resulting ratio. The tin oxide product has ________ times more moles oxygen than moles tin. A) 2 B) 3 C) 4 D) 5

Q: A model of the butanal molecule is shown in the window below. ball & stick + labels ited a. How many…

A: From the model, Butanal=> CH3>CH2CH2CHOMolecular formula of butanal is C4H8O. Mole is the SI…

Q: Calculate the molar mass. a. Co(NO3)2 x 6H2O b. Ni(NO3)2 x 6H2O

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Q: Ammonium phosphate NH43PO4 is an important ingredient in many fertilizers. It can be made by…

A: The given mass of ammonia = 7.5 gThe mass of ammonium phosphate produced = ?

Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

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Q: a. Determine the molar mass of potassium phosphate and ammonium phosphate. K3PO4 (NH4);PO4 b.…

A: The objective of the question is to determine the molar mass and mass percentage of phosphorus.

Q: 1. Consider the reaction 1,0g)+5CO(g) 5C0g)+16) a) 80.0 grams of iodine(V) oxide, I,O, reacts with…

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Q: How many moles of tin, Sn are needed to give 1.39x1022 tin atoms? Starting Unit (include substance):…

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Q: If we wanted to produce 0.95 mol of carbon dioxide gas (CO2), how many moles of oxygen (O2) gas…

A: Given, moles of CO2(produced)=0.95 mol

Q: Granulated sugar consist of mostly a single chemical, sucrose (C12H22O11). Look up the molecular…

A: Mass of the Carbon = 12 g.Mass of the Hydrogen = 1 g.Mass of the Oxygen = 16 g.

Q: A 2.86 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given, mass of 2.86 g sample of a compound produced 1.61 g CO2 and 0.989 g H2O.Moles of CO2 and H2O…

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: 4. Dimethyl nitrosamine, (CH3)2N20, is a carcinogenic substance that may be formed in foods,…

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Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1044…

A: Given data,  Mass of nitrous oxide = 2.37 g  Contains 3.24 × 1022 N2O molecules

Q: Number of atoms of Carbon in 10 moles of CAH10 are:

A: Given : moles = 10 mol

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

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Q: 4. YOU HAVE 15 GRAMS OF NazSO4. CALCULATE THE NUMBER OF CATIONS IN THIS MASS. GIVEN: MOLAR MASS (…

A: Given compound Na2SO4 and this compound dissociates into cation and anion as  Na2SO4 ⇌2Na+ + SO4-2…

Q: Given : 1CH4 (g) + 2O2 (g) —> 1 CO2 (g) + 2 H2O (g) Q. calculate the mass of c02 gas formed when…

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Q: A mixture of 197.1 g of P and 203.6 g of O, reacts completely to form PO, and P010: Find the masses…

A: Mass of O2 = 203.6 g * moles of O2 = Mass of O2 / Molar mass of O2 = 203.6 g / 32 (g/mol) = 6.36…

Q: Convert 6.00 moles of calcium to atoms. O 8.50x1024 atoms O 1.56x1023 atoms O 3.61x1024 atoms…

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Q: Aluminium has a density of 2.70 | g/cm3 . How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density :- Density of a substance is its amountof mass per unit volume . So , density is the…

Q: Consider the following chemical reaction:            CH4   +    2O2   ------------------>    CO2…

A: The considered reaction is, CH4 + 2 O2→CO2 + 2 H2O

Q: A mixture of carbon and sulfur has a mass of 9.0 g. Complete combustion with excess O2 gives 23.3 g…

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Q: (MEF) Sulfur reacted with 3.85 g of iron to form 7.21g of an iron sulfide. What is the empirical…

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Q: A 27.129 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put…

A: Answer: Empirical formula is the formula containing all the atoms present in the compound in their…

Q: N2(8) + 3 H2(8) → 2 NH3(8)

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Q: The number of atoms of oxygen in a 0.01800-g sample of O3(g) is equal to the number of molecules in…

A: Given in the question : Mass of O3 = 0.018 g Mass of other hydrocarbon sample CxH6 = 0.06085 g Given…

Q: Number of atoms of Carbon in 15 moles of C4H10 are: 90.33x10^23 361.32x10^23 O 6.23x10^23

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Q: Without using a calculator, which has the greater mass: One mole of carbon atoms or one mole of…

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Q: Convert 40.0g K3PO4  to molecules of K3PO4 . choose the correct multiple choice underneath. 40.0…

A: Given mass of K3PO4  = 40 g

Q: Question 11 How many moles of carbon are present in 1.37 x 10 25 atoms of carbon? O 8.25 moles O…

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Q: Which of these are correct/ true?  A. 1 mole of He has the same amount of atoms than 1 mole of Ca B.…

A: There are some correct statements where are written with explanatios.

Q: minutes

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Q: 19 Convert 7.16E24 atoms of Ni to grams of Fe. 2 Ni+3 Fe(NO3)2 → 2 Ni(NO3)3 +3 Fe type your…

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Q: 2. In a certain compound of chromium, chlorine, and water, CrxClyoz H₂O, we find that a sample…

A: (2) Following information about the substance given - Mass of sample = 20.000 g Mass of Chromium Cr…

Q: In chemistry, what is meant by the term “mole?” What is the importance of the mole concept

A: Mole is a unit to  express the mass, Number and volume of a Substance in Chemistry.  It is a bigger…

Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

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Q: 1- Determine the mass of 6.46 mol of Pb, H₂SO4? 2- Determine the moles in 125.0 grams of nickel,…

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Q: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Empirical formula :- The formula which gives the simplest whole number ratio of atoms of various…

Q: Calculate the number of atoms in a 8.20 x 10³ g sample of sulfur. number of atoms: A reaction…

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Q: A mixture of 132.1 g of P and 136.5 g of O, reacts completely to form P¸O, and PO,0. Find the masses…

A: We have to calculate the mass of product formed.

Q: 2. A synthesis reaction produces ammonia: 3H2(g) + N2(g) -> 2NH3(g). What is the maximum amount of…

A: The amount of product can be determined by the limiting reagent of the reaction. The limiting…

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.