a certain protein has a molar mas of 2.88 x 10^5 g. what is the mass of the molecule of this protein

Q: What mass of HCl, in grams, is required to react with 0.590 g of Al(OH); ? Al(OH)3 (s) + 3HC1(aq) →…

A: Al(OH)3  + 3HCl  ----------------> AlCl3   +  3H2O Molar mass of Al(OH)3 = 78 g/mol molar mass of…

Q: 2K + 2H,0 --> 2KOH + H, Describe what is happening Reactants combine into a large one Reactant…

A:

Q: A block of pure magnesium metal weighs 76.9 grams. How many moles of magnesium are present in the…

A: Mole= mass of Mg / molar mass of Mg Given - 1) mass of Mg =76.9              2) Molar mass of Mg=…

Q: What would be the maximum mass of ammonia that will be produced if 14.0 g of nitrogen was reacted…

A: Limiting reactant :-  A reactant which is present in lesser number of moles than required as per…

Q: According to the following reaction, how many grams of oxygen gas are required for the complete…

A: Given that : Mass of ammonia = 25.2 g The molar mass of ammonia is 17.03 g/mol So, Number of…

Q: Balance chemIcal eojuasias NO + H20 2)_ Nig Og + Fe. Ni COH)2+ Fe COH72

A:

Q: In photosynthesis, as depicted by the reaction shown here, how many grams of CO2 (molar mass = 44.01…

A:

Q: What do you call the mass of one molecule of a substance?     Mass Number   Atomic Number   Molar…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: 1. Write the balanced chemical equations for the following reactions and identify the type of the…

A: The unbalanced reaction are:

Q: A 52-kg woman has 7.2 x 10 mol of hemoglobin (molar mass = 64456 gmol ) in her blood. How many…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: A 52-kg woman has 7.2 x 10-3 mol of hemoglobin (molar mass = 64456 g/mol) in her blood. How many…

A: Given no.of mol of hemoglobin = 7.2×10-3 mol.we know that no. of molecules = mole×Avogadro…

Q: What mass of carbon dioxide is produced when 1.0 gallons of gasoline is combusted? The approximate…

A: Gasoline gallon equivalent (GGE) or gasoline-equivalent gallon (GEG) is the amount of alternative…

Q: A mixture of C2H2 and CH4 has a total mass of 251.8 g. When this mixture reacts completely with…

A: Given:Total mass of mixture of C2H2 and CH4 = 251.8 g.Total mass of CO2 and H2O = 1138.0 g.Molar…

Q: A 2.25 mol sample of an element has a mass of 51.8 g. What is the molar mass?

A: The sum of the total mass in gram of the atoms present in a molecule per mole is the molar mass or…

Q: If 34.0 g of MgSO4⋅7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?

A: Given:Mass of  MgSO4⋅7H2O = 34.0 gWe need to find mass of anhydrous magnesium sulphate  produced…

Q: [References) Cryolite (NazAIF6) is used in the commercial production of aluminum from ore. Cryolite…

A:

Q: In the chemical equation: Fe203(s) + 2 Al(s) --> 2 Fe(l) + Al20(s) the Fe203 is O a. a precipitate O…

A:

Q: The molar mass of nicotine C10H14NX is 162 g/mol. What is the value of x?

A: Given that, Molar mass of nicotine C10H14Nx is                162 g mol-1.  Value of x = ?

Q: What is the mass of 1.82 mole C4H11O3 in grams

A: mass of 1.82 mole C4H11O3 in grams determined in step 2

Q: Consider the mixture of Cl2 and F2 in a closed container as illustrated below. What will the…

A: The reaction taking place is given as, => Cl2(g) + 3 F2(g) → 2 ClF3(g)

Q: Determine the % composition of Vitamin E, C29H50O2?

A: Given : Molecular formula of Vitamin E is C29H50O2  To be determined :-  % composition of each…

Q: If you have 6 moles of Al(OH)3, how many moles of Cu(OH)3 will be produced?

A: Note : Formula for copperhydroxide is written wrong. Cu(OH)3 is wrong formula. Correct formula is…

Q: 17. Consider the following generalized chemical reaction. 6A +3B → 5C If 5.00 moles of A are reacted…

A:

Q: A sample of gas mixture from a neon sign contains 5.12 x 10- mol Ne and 4.40 x 10- mol Kr. What are…

A: Mass percentage is the ratio of mass of a substance to the mass of mixture, multiplied by 100. Fir…

Q: Lithium faces an increasing demand since the alkali metal is a key component in a lithium- ion…

A: Given  Number of moles of lithium = 5.40 mol we have to calculate the weight of lithium. Molar mass…

Q: 3.15 X 1023 molecules of water were collected in a distillation flask. How many moles of H20 were…

A:

Q: 4 NH3(g) + 5 O2(g) -----------> 4 NO(g) + 6 H2O(g) What mass of nitric oxide can be formed from a…

A:

Q: Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and…

A:

Q: CaO + H2O → Ca(OH)2 If 9.5 × 1024 particles of Ca(OH)2 are produced, how many moles of CaO were…

A:

Q: Precipitates used in the gravimetric determination of uranium include Na2U2O7 (634.0g/mol),…

A: Here the quantity of Uranium is supposed to be constant, then we need to determine which of the…

Q: A 52-kg woman has 7.2 × 10⁻³ mol of hemoglobin (molar mass = 64456 g/mol ) in her blood. How many…

A: Given mole of hemoglobin = 7.2 × 10⁻³

Q: the mass percentage composition of the elements in caffeine, C8H10N4O2.

A:

Q: 7. A human needs about 120. grams of glucose per day. How many 6 CO2 + 6 H20 > C6H12O6 + 6 O2 grams…

A:

Q: Polyethylene is a polymer consisting of only carbon and hydrogen. If 2.300 g of the polymer is…

A:

Q: A mixture of C2H2 and CH4 has a total mass of 164 g. When this mixture reacts completely with excess…

A: Given,Total mass of mixture of C2H2 and CH4 = 164 g.Total mass of mass of CO2 and H2O = 746.6 g.…

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

A:

Q: Molar Mass Number of Representative Particle Mass Substance Number of moles (g/mol) (9) Particles

A:

Q: Consider the following chemical reaction: CaO(s) + H2O(l) ----------> Ca(OH)2 (aq) if 1.00 g…

A: Given  Mass of calcium oxide = 1.00 g  Mass of water = 2.00 g

Q: A 55-kg woman has 0.0085 mol of hemoglobin (molar mass = 64,456 g/mol) in her blood.…

A: The moles of hemoglobin present in the blood of 55-kg is 0.0085. We know that the moles of…

Q: One molecule of an unknown compound is found to have a mass of  4.61 x 10-22 g. What is the molar…

A:

Q: 7) Define stoichiometry. A) the concept that 6.02 x 1023 atoms are in 1 mole of an element B) the…

A: A) the concept that 6.02 X 1023 atoms are in 1 mole of an element is known as Avogadro's concept…

Q: The plot below describes the formation of Element Z from Element X and Element Y over a period of…

A: From the graph, we can see that Initial Moles of X = 1.35 moles Initial moles of Y = 2.35 moles…

Q: The approximate minimum daily dietary requirement of the amino acid leucine, C6H13NO2, is 1.1 g.…

A: Molar mass of the amino acid leucine ( C6H13NO2 ) = 12 x 6 + 1 x 13 + 14 x 1 + 16 x 2 = 72 + 13 + 14…

Q: 5.60 X 104 g of hydrogen gas are produced during the electrolysis of water. Calculate the number of…

A:

Q: The molar mass of ibuprofen is 206.3 g mol-1 and a standard tablet contains 0.2 g ibuprofen.  What…

A: Given that : The molar mass of ibuprofen = 206.3 g/mol The mass of ibuprofen in a tablet = 0.2 g

Q: If 5.9 x 1025 molecules of CO2 are produced in a combustion reaction, what is the mass in kg of CO2…

A: Molar masa of a compund is defined as a mass of a sample of a that compund divided by the amount of…

Q: If the same amount of electricity that is used to produce 500 g copper metal (Cu Cu") is used to…

A:

Q: What is the composition, in atom percent, of an alloy that contains a) 35 g copper and b) 49 g zinc?

A: Given :-  mass of Cu in alloy = 35 g  atomic wt. of Cu = 63.55 g/mol mass of Zn in alloy = 49 g…

Q: A 52-kg woman han 7.2 x 10"mol of hemoglobin (molar mass - 64456 glmol)in her blood. How many…

A: No. of mol of hemoglobin = 7.2×10-3 mol Molar mass of 1 mol of hemoglobin = 644.56 g/mol 1 mol of…

Q: 25.If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given data Moles of substance = 0.274 mol weight of substance = 62.5 g find out the molar mass of…

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.