26.0 mol Hg Express your answer using three significant figures. N = atoms Submit Request Answer • Part D 0.265 mol Na Express your answer using three significant figures.

Q: a mass [ORA) initial (M) 0.0096 0.0289 0.0578

A: According to Langmuir adsorption isotherm, the fractional surface coverage is given by the…

Q: 11. Pb(NO), # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #3 is a…

A:

Q: Number Log log Crooo) -3 log C1o).-a 1000 0.01 Ix 104 -4 log (o-02), -1-69 .02 300 log (300 ), 2.47…

A: pH is the measure of acidity whereas pOH is the measure of basicity. For a solution, if pH < 7…

Q: 13. СО, # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #2 is a…

A: The name of the element and number of atoms in the given molecules has to be given.

Q: seous methane (CH4) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and…

A: CH4(g) + 2O2(g) -----> CO2(g) + 2H2O(g) Mass of CH4= 11.4 g Mass of O2 = 13 g Molar mass of CH4=…

Q: Given the data below, calculate the mass of copper in the original sample. Mass of original sample…

A: This question can be solved using simple subtraction.

Q: (a) Palladium (Pd) is an element with properties similar to those of platinum. It is useful in…

A: Given : Mass of bar = 96.03 g Length of bar = 10.7 cm Diameter of bar = 9.82 mm = 0.982 cm…

Q: Substance AB2 is 60% A by mass.  What is the percent A by mass for substance AB?  Justify your…

A: Law of definite proportions: It states that chemical compounds has formed always in a fixed ratio. 1…

Q: A chemist has two different gasohol mixtures available. One contains 20% alcohol and the other 12%…

A:

Q: How much nickel is contained in a nickel coin that is 8.33% (by weight) of nickel? Recall that a…

A: Shape of coin is cylindrical. Density of a substance is defined as the mass of substance per unit…

Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: How many grams of oxygen (O) are present in a 6.41 g sample of potassium nitrate (KNO3)? Enter your…

A: Potassium nitrate (KNO3) is ionic compound and it contains one potassium, one nitrogen and three…

Q: the mole is a common unit of measurement in chemistry you mat not be faniliar with mikes but one of…

A: Given : Mass of water i.e H2O = 290 g And mass of 1 mole of water = 18 g

Q: e mass of c

A:

Q: Liquid octane (CH, (CH3(CH,) CH,) will react with gaseous oxygen (0,) to produce gaseous carbon…

A: Chemical Reaction would be :  C8H18 + O2 --> CO2 + H2O  Mass of O2 = 46.0 g Mass of C8H18 = 100.0…

Q: Calculate the number of oxygen atoms in a 130.0 g sample of glucose (C,H120). Be sure your answer…

A:

Q: How many grams of chlorine atoms are present in a 7.73 g sample of barium chloride (BaCl2)? Enter…

A:

Q: initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203 g mass of water…

A: Mass of water = 10 g Volume of water = 10 mL Density of water = ?

Q: The chemical formula for diethyl amine is: (CH;CH,),NH Calculate the molar mass of diethyl amine.…

A: The chemical formula of diethyl amine is given as (CH3CH2)2NH.

Q: How many moles does 120.30 g lithium represent? Use correct significant figures and units.

A: The number of moles of an element present in a given amount is calculated by using the following…

Q: What is the mass of one atom of gold (Au)? How would you write this answer to significant figures?…

A: Atomic mass of gold is 196.96655 g/mol.

Q: How many oxygen atoms are in 9.00 g of AI2(SO4)3? Also use 2 decimal places.

A: This question involves calculation for the number of atoms present in 9.00 g of AI2(SO4)3 . For…

Q: 1. Calculate the mass of mercury(II) oxide

A: Given :- volume of O2 = 36.0 mL  Temperature = 50.0 °C  Pressure = 1 atm  To calculate :-  Mass of…

Q: Orciprenaline(C11H17N03, 211.258 g/mol) is a bronchodilator used in the treatment of asthma. The BP…

A: ORCIPRENALINE belongs to the class of drugs called 'bronchodilators' that is used for treating…

Q: 15. Cr(NH,),(NO,, # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The…

A: Elements are the type of substances which cannot be broken down into smaller substances. Group of…

Q: 3.7 × 10–4 kg of atoms to micrograms (μg).

A: Given information:Mass of atoms = 3.7×10-4 kg

Q: Substance AB2 is 60% A by mass.  What is the percent A by mass for substance AB?  Justify your…

A: For given compound AB2, 60% by mass is A then obviously 40% is B. That is for 100g of given…

Q: The concept of mole was adopted by the International System of Measurements. a) Since Amadeo…

A: Since we know that mole is the unit of measurement of a  substance in the international system (SI)…

Q: grams

A:

Q: Gaseous methane (CH,) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,)…

A: We have to calculate the maximum mass of water produced.

Q: Question attached

A:

Q: An unknown sample was found to contain the following: 10.62% H 42.04% O 47.34% C Use this…

A:

Q: Convert 56.0L of 02 (g) to particles 56.0L I 6.02 x0 particks particks 22.4L 1.49x104 particles %3D…

A: Given: To find the missing values:  Convert 56.0 L of O2 (g) to particles.

Q: Rearrange these terms to solve for mass (m).

A:

Q: Difference between actual yeild and theoretical yeild.

A: Yield of reaction represent amount of products formed in gram during a chemical equation.

Q: How many atoms are in 244.06 g of plutonium, Pu? (Round to 2 numbers after the decimal and include…

A:

Q: In a 1.125E2 sample of iron(III) oxide, how many grams of iron are préšěnt? You? number of…

A: Given: The mass of iron (III) oxide = 1.125×102 g. The formula of iron (III) oxide = Fe2O3. The…

Q: (d) 2 C(graphite) +202(g) → 2CO2(g) (b H2(g) + 1/2O2(g) → H₂O(1) (e) 2 CO2(g) + H₂O(l) → C₂H2(g) +…

A:

Q: 1. A 25g of Gold is found. Compute for the number of molecules and atoms present in the substance.

A:

Q: Stainless steel is composed of iron, manganese, chromium, and nickel. If a 2.00 g sample was…

A:

Q: 0.145 mol C2 H6 Express your answer using three significant figures. VC = mol Submit Request Answer…

A:

Q: A _____ is something that has a definite composition.

A: The study of the composition, structure and characteristics of matter; the processes which matter is…

Q: This is the chemical formula for CH,OC(CH,), A chemical engineer has determined by measurements that…

A:

Q: The mole is a unit that counts things and it can be converted into

A: Mole is the unit of the amount used extensively in the calculation of chemistry. The mole amount of…

Q: 3. What is the mass of one atom of Na (include units) -339 4. What is the mass of one atom of carbon…

A: Mass of an atom = (no. of protons × mass of  one proton) + (number of neutrons × mass of one…

Q: A student observed the following data: Water temperature change Weight of water 8° C Metal…

A:

Q: d) c, and (e) p? red quantities: (a) 351 g,

A:

Q: H2N J a) i) NaNO2 HCI, ii) I2 b) i) NaNO2, HCI ii) KI Oc) KI O d) 12

A: Diazotization: The conversion of aromatic amines into its diazonium salt is called diazotization.

Q: Nitrogen ΔHof (kJ/mol) ΔGof (kJ/mol) So (J/mol K) N2 (g) 0 0 191.6 N (g) 472.7…

A: Given, Moles of N2 = 1.590mol

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.