6. If a vitamin contains 63 atoms of carbon, 90 atoms of hydrogen, 14 atoms oxygen, 14 atoms of nitrogen, 1 atoms of phosphorus, 1atom of cobalt.  The molecular formula is thanks

Q: Cyanocobalamin( vitamin B12) contains 4.34% cobalt by mass. what is the ,olar mass of…

A:

Q: (a) Does the percent by mass of each element in a compounddepend on the amount of compound? Explain.…

A: a) In a molecule of calcium chloride, there is one calcium atom and two atoms of chlorine. The total…

Q: A compound contains 18.7% lithium, 16.3% carbon, and 65.0% oxygen by mass. If its molecular formula…

A: Given data, %Li = 18.7% %C=16.3 % %O=65.0%  molar mass of compound= 73.8 g mol-1 Then, molecular…

Q: A chromium-containing compound has the formula Fe,Cr,O, and is 28.59% oxygen by mass. Findx and y.

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Q: A pure gold ring contains 0.0102 mmol (millimol) Au. Howmany gold atoms does it contain?

A: Given: Moles of Au = 0.0102 mmol= 0.0102×10-3 mol To find: The number of gold atoms

Q: A compound has the chemical formula CaX2, where X is an unknown nonmetal. The percent by mass of Ca…

A: Percentage by mass of compound means if total compound is 100 g then that component has mass…

Q: A chromium containing compound has a formula FexCryO4 and is 28.59% oxygen by mass  Find x and y

A: Given, mass percentage of O in FexCryO4 = 28.59%Molar mass of 4 O in FexCryO4 = 4 × 16 g/mol = 64…

Q: A compound contains only nitrogen and oxygen and has aformula mass of 44.02 amu. What is its…

A: The atomic mass of Nitrogen, N = 14.01 amu The atomic mass of Oxygen, O = 16 amu The atomic mass of…

Q: #8: A 5.00 g sample of hydrated barium chloride, Bacl, nH,0, is heated to drive off the water. After…

A: Chemical compounds are the combination of molecules. Different molecules are involved in bonding and…

Q: Wwhat is themassin grams of one mole of sulfur? (round to 3 sig figs)

A: The question is based on mole concept. we have to write mass of 1 mole of sulphur atoms.

Q: 1. How many ATOMS of sulfur, are present in 4.82 moles of sulfur dichloride, SCl,? atoms of sulfur

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

Q: How many total atoms are in 0.910 g of P,0,? total atoms:

A:

Q: A student weighs an 18 g sample of Al and needs the same number of magnesium atoms as she has in the…

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Q: A sensitive electronic balance candetect masses of 1 × 1 0 -8 g. How many atoms of silverwould be in…

A: In order to calculate the number of atoms of an element present in a given amount we first need to…

Q: If you have 9.407 * 10^23 atoms of lead how mant grams of lead (IV) phosphate can you make   How…

A: To determine the moles of Lead present in the given number of atoms, As 6.022×1023 atoms are…

Q: A 1.628-g sample of a hydrate of magnesium iodide isheated until its mass is reduced to 1.072 g and…

A: Given data mass of sample  = 1.628  g mass of sample after heating = 1.072 g…

Q: C4H10 and C6H12 are both hydrocarbons. Whic one contains higher mass percentage of carbon?

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Q: A compound is made by carbon, hydrogena and nitrogen and 1 g of this compound contains 91.5 mg of…

A: To write the molecular formula of the compound, the number of moles of each element should be…

Q: 2. The rubbing alcohol was found to have 60% carbon, 13.4 % hydrogen, and the remaining percent by…

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Q: How many GRAMS of dioxygen difluoride are present in 4.95×1022 molecules of this compound ?

A: Number of molecules of O2F2 = 4.95×1022

Q: What is a MOLE? O Aunit of substance containing a certain amount expressed in grams O Aunit of…

A: The given question asks to select the right option that accurately defines a mole of any substance.

Q: h for dellivery from the supplier? Assume that the atomic mass of Ca is 47.0 u.

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Q: Na +  H2O --->  NaOH +  H2 A mass of 6.2 moles of sodium reacts with an excess of water.  What mass…

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Q: A typical "lcad" pencil is actually made from carbon. If the carbon in the pencil weighs 1.50 gram…

A: Number of moles of a chemical compound is used to measure the amount of compound in the given…

Q: An 85.00 g sample of an unknown compound contains 24.26 g molybdenum, 24.33 g sulfur, and the rest…

A: Given,  Mass of the compound = 85.00 g  Mass of molybdenum = 24.26 g  Mass of sulfur = 24.33 g  Mass…

Q: Ammonium perchlorate (NH CIO,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A: Please have a look on the solution:

Q: An element’s molar mass in grams per mole is numerically equal tothe element’s atomic mass in atomic…

A: An element's molar mass in g/mol  is numerically equal to the element's atomic mass in atomic mass…

Q: iven : 2NaHCO3-->Na2CO3 +H2CO3  Molar mass NaHCO3 is 84.01g/mol Molar mass of Na2CO3 is…

A: chemical reaction :-    2NaHCO3    -->      Na2CO3   +  H2CO3 Molar mass NaHCO3 is 84.01 g/mol…

Q: The scuba tank of oxygen gas weighs about 16 kg. How many atoms of oxygen gas (O2) are there in the…

A: Molar mass of oxygen gas(O2) is 32 g/mol

Q: 4. Does 1 g of hydrogen molecules contain as many H atoms as 1 atoms? of hydrogen

A: A mole is amount of substance which contain same number of units as the number of atoms in 12 gm…

Q: what structure(s) densest possible packaging of atoms?

A: Packing factor is defined as the ratio of volume of the atoms per unit cell to the volume of the…

Q: Which of the following contains the largest number of molecules: 6.00 g CH, 9.00 g H,0, 11.0 g C,H,…

A: To determine largest number of molecules first calculate the number of moles.

Q: 7.) How many molecules of H, are present in 7.5 grams of H,?

A: Since there are multiple questions, I am only solving the first one. If you want the other question…

Q: 7. A metal (M) forms a compound with the formula Mle. The compound contains 71.00% I by mass. Ident…

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next…

Q: 4. If the manufacturer of Remdesivir has access to 1394 g of phosphorus atoms, how many grams of…

A: The chemical formula of Ramdesivir: C27H35N6O8P. The given mass of phosphorus atoms = 1394 g Atomic…

Q: A compound containing carbon and hydrogen has a molar mass of 56.11 g/mol and an emperical formula…

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Q: The number of particles in 1 mole is called ? b) The value of the mole is equal to the number of…

A: No of particles = mole × avagadro number.   Mass = molar mass × mole.

Q: Nitrogen Hydrogen Sulfur Oxygen 1 ionic compound of (NH4)2503 atoms of N atoms of S atoms of O atoms…

A: (NH4)2SO3 is known as Ammonium Sulfite It consists of atoms of Nitrogen, Hydrogen , Sulfur and…

Q: 5. If 10.0 gram of aluminum chloride are decomposed, how many molecules of Cl, are produced? AICI, →…

A: Molecule of chlorine are calculated by using  mole ratio of aluminium chloride nd chlorine

Q: Subr If Epsom salt, MgSO, · xH2O, is heated to 250 °C, all the water of hydration is lost. On…

A: Given information, Mass of hydrated sample (MgSO4.xH2O)  = 1.388 g Mass of anhydrous sample (MgSO4)…

Q: How many grams of F are in 325 g CaF, ? mass: g

A: Calculate number of gram of F in CaF2 ?

Q: What mass of sulfur hexafluoride, SF, has the same number of fluorine atoms as 25.0 g of oxygen…

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Q: of 7.5 x 10^23 atoms of Br? * A. 7,5x1batoms br x G02 MỖ atons Br Imol Br B. 7.5x1b tome br x_ Imol…

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Q: 9) How many molecules of SO, are in 200 g of SO,?

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Q: 7. A compound contains 30.4 g of nitrogen and 69.6 g of oxygen by mass. What is the chemical formula…

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Q: b) What is the molecular formula given that its mass is 121 g. ( to

A: Given;

Q: e the % by mass of Fe to T

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Q: How many grams are in 2.0 x 1044 atoms of C? Enter your answer rounded to four sig figs, without…

A: 1 mole of any substance contains 6.022×1023 1 mole of any substance is the molar masa of that…

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.