Folic Acid (C19 H19 N7 O6), also known as vitamin B9 is used to treat anemia caused by folic acid deficiency. Folic acid is also used as a supplement by women during pregnancy to reduce the risk of neural tube defects (NTDs) in the baby. The molar mass of a folic acid 441.4g/mol.a.) How many moles of vitamin B9 are present in 25 mg of sample?b.) How many oxygen atoms are there in 0.25 mol of vitamin B9?c.) What is the mass percent of carbon in vitamin B9? (up to 3 sig. figures)

Q: 3. A student carried out the synthesis of aspirin as described using 3.00 g of salicylic acid and…

A: #3: Mass of salicylic acid (MW = 138.12 g/mol) used = 3.00 g  Volume of acetic anhydride used, V =…

Q: Isooctane, CgH18), is one of the main constituents of gasoline. Calculate the mass of carbon dioxide…

A: Given,  How much amount of carbon dioxide gas produced by the complete combustion of 692 g of…

Q: Lipitor (C33H35FN,O5) is an important pharmaceutical compound for cardiovascular health. The molar…

A: Given :-  Molar mass of lipitor = 558.63 g/mol  Mass of lipitor in a dose = 0.0100 g  To calculate…

Q: How many g of Al2(SO4)3 can you prepare from 2.5 g of H2SO4  ?

A: When H2SO4 react with Al(OH)3 it form Al2(SO4)3 and H22O as product.

Q: What amount of water (in moles) is produced by the reaction of 5.00 mol C5H12 with 27.5 mol O2?…

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Q: What's the balanced chemical equation of NaOH and CuSO4?

A: The reaction of CuSO4 and NaOH is a double displacement reaction

Q: Assuming one mole of compound, calculate the theoretical percentage composition of P₂O3. O P: 56.4%…

A:

Q: 1. ) 70.90 g/mol 2 Clzg) 26.98 g/mol + 3 Ale) 133.3 g/mol →2 AICI6) a. Calculate the theoretical…

A: Given data,Mass of Al=15.0gMass of AlCl3 obtained=25.21gMass of V =220gExperimental yield of…

Q: 5 O2 (g) + 4 NH3 (l) → 4 NO (g) + 6 H2O (l) How many moles of O2 (g) are required to react with…

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Q: CH4(g) + 2 O2ie) CO2(g) + 2 H2O(g) What mass of water is produced by the complete reaction of 10. g…

A: Given the balanced reaction, CH4(g) + 2O2(g) → CO2(g) + 2 H2O(g) mass of methane = 10. g

Q: How many moles of NaCl are needed if we want to make 38.74 grams of PBCl2 by the reaction 2 NaCl +…

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Q: A compound contains, by mass, 81.7% carbon and 18.3% hydrogen. A 0.15 mole sample of this compound…

A: Given  % Carbon  = 81.7 %  % H   =  18.3 %  Number of mole     = 0.15 mole  Mass of compound = 6.6…

Q: grams

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Q: How many moles of N2 can be formed by the decomposition of 2.12 mol of ammonia, NH3?

A:

Q: How many moles are present in 100. g of aspirin (C 9H 8O 4, molar mass 180.2 g/mol)?

A: The given mass of aspirin is 100g. Molar mass of aspirin is 180.2 g/mol.

Q: Find the molar mass of CO(NH2)2-

A: Molar mass of compound is sum of atomic masses of constituent atoms . Atomic mass of C = 12.01…

Q: 28.528.5 mol of P4O10P4O10 contains how many moles of PP?

A: Given, 28.5 mol of P4O10

Q: 50 kg propane (C3H8) is completely burned in 250 kg air (21 mol% O2 and 79 mol % N₂). Calculate the…

A: The mass of propane = 50 kgThe molar mass of propane = 44.1 g/molThe mass of air = 250 kgIn which 21…

Q: A water solution of sulfuric acid (H2SO4) has a density of 1.864 g/mL and is 73.0% H2SO4 by mass.…

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Q: (3) Barium chloride has a hydrated form, BaCl2 XH2O. A 7.25 g sample of the hydrate lost 1.07 g of…

A:

Q: A classic SUV features a 204 L gas tank. Assuming a molecular formula of C8H18 for gasoline and…

A: Given: Volume of tank = 204 L Density of gasoline = 759 g/L. And all the gasoline is C8H18.

Q: Pb(C2H3O2)2(aq) + H2O(l)+CO2(g)---PbCO3(s)+HC2H3O2(aq)  suppose a aqueous solution containing 1.40…

A: Mass of lead (II) acetate = 1.40 g  Mass of carbon dioxide = 5.80 g  Molar mass of lead (II) acetate…

Q: A local water retention pond was found to have elevated mass concentration of mercury of 14 ng per…

A: Given data: Concentration of mercury = 14 ng/L Volume of water in swimming pool = 1250 m3   Known…

Q: A mixture with a total mass of 3.12 g contains sucrose (C6H1206, 342.30 g mol-1) and ethyl alcohol…

A: Answer is explained below.  Given that, volume of CO2 = 3.04 L.  Pressure of H2O = 42.20 mm Hg =…

Q: Compound "X" has a density of 1.71 g/L at 755 mm Hg and 25 °C. What is the molar mass of  compound…

A: Density = 1.71 g/L Pressure =  755 mm Hg = 0.993 atm  ( 1 atm = 760 mmHg) Temperature = 25 °C =…

Q: what is molar mass in g/mole of C5H1102

A: molar mass of carbon, C = 12 g/mole the molar mass of Hydrogen, H = 1 g/mole the molar mass of…

Q: 8. A 10.00 g sample of a compound that consists of carbon and hydrogen is found to consist of 7.99 g…

A:

Q: quation below what is the mole ratio between O2 and CO2? + 8 O2 (g) → 6 H2O (g) + 5 CO2 (g) =8 =5 CO

A: A mole ratio is a conversion factor.  It  relates moles of any two substances in a chemical…

Q: Calculate the maximum amount in grams of H₂O that can be produced by the reaction of 550 mg of H₂…

A: Given, H2(g) + O2(g) ➝ H2O(g) Balancing the above equation: 2H2(g) + O2(g) ➝ 2H2O(g) Note: 1000 mg =…

Q: How many g of C4H4S2 are equivalent to 5.40 moles of this compound?

A: Answer: 627.48 g

Q: before 1959, oxygen was popularly used to define the unit of mol. in 1967, the international…

A:

Q: 2H2 + O2 -->  2 H2O How many moles of oxygen is required to produce 3.9 moles of water?

A: Reaction: 2H2  +  O2 → 2 H2O   According to Balanced Chemical Reaction : 1 mole of oxygen (O2 ) is…

Q: How many moles of aspirin (C9H8O4) are in 2.00 g of aspirin?

A: Calculate moles of 2.00 g of aspirin ?

Q: How many moles are present in 35.6g of H2SO4?

A: Given the mass of H2SO4 = 35.6 g The molecular mass of H2SO4 = 98 g/mol

Q: According to the following reaction, how many moles of calcium oxide will be formed upon the…

A: Given reaction -- CaCO3 ----> CaO + CO2

Q: 4. low many moles re present whe there are 1.00 · 1026 molecules of water? 166 moles 175 moles 200…

A: Mole can be defined by saying that, "The mole is the unit of measurement for the amount of…

Q: How many molecules of p2o5 one in 17.30 moles

A: Given :- number of moles of P2O5 = 17.30 mol  To calculate :- number of molecules of P2O5

Q: What is the mole ratio of Hydrogen (H2) to Ammonia (NH3) in this balanced equation? N2(g) + 3H2(g)…

A: N2(g) + 3H2(g) -> 2NH3(g)

Q: How many moles of sodium azide (NaN3) are required to produce 0.23

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Q: A 14.590 g14.590 g sample of CaCl2CaCl2 was added to 12.028 g12.028 g of K2CO3K2CO3 and mixed in…

A: Determine limiting reagent:From the balanced chemical equation, 1 mol of CaCl2 and 1 mol of K2CO3…

Q: What mass of silver oxide, Ag₂O, is required to produce 25.0 g of silver sulfadiazine, AgC H₂N SO₂,…

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Q: How many moles are present in 100g of Mg(CN)2

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Q: How many moles of H₂O can be formed from 1.26 \times 10 ^ 2^3 molecules of NH3 from the following…

A: To determine how many moles of H2O can be formed from 1.26 x 10^23 molecules of NH3, we first need…

Q: Tristearin (C57 110° H obtained from animal fats, was historically used as a household fuel source.…

A: Given the mass of tristearin(C57H110O6) taken for combustion = 5.79 Kg  Since oxygen(O2) is taken in…

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.