Calculate the number of moles in each sample. 74.9 g HCCl3 Express your answer with the appropriate units.   10.7 g C6H12O6 Express your answer with the appropriate units.   28.4 kg C2H4 Express your answer with the appropriate units.   22.6 g of dinitrogen monoxide Express your answer with the appropriate units.

Q: sample of P4O10 with a mass of 44.9 g was treated in such a way that all of its phosphorus was…

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Q: Calculate ΔG° for each reaction using ΔG°(f) values:

A: (a)

Q: Крand Kc the sanme?* А. 2 СО(g) + 0-(g) B. PCI5(g) → PC13(g) + Cl2(g) С. N2(g) + 3 H-(g) —> 2 NH3(g)…

A: Kp = Kc(RT)∆n ∆n = number of moles of gaseous product - number of moles of gaseous reactants

Q: How many daL of bromine are in 15.7 x 1022 molecules?  (The density of bromine is 3.1 g/cm3) The…

A: Given: The density of bromine = 3.1 g/cm3 We have to find How many daL of bromine are in 15.7 x 1022…

Q: What is the mass in grams of 0.375 mole diatomic chlorine?     13.3 g     0.0134 g     2.26 x…

A: Moles of component is defined as ratio of the given mass to the molar mass. The relation for the…

Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: Given; density of water at 4.00Co=0.967 g/mL present volume of water we have=499.8 mL moles of water…

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

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Q: One mole of oxygen gas has a mass of 6.022 x 1023 16.0 32.0 none of the above 8.

A: One mole of oxygen gas is equal to = O2 (two atoms of oxygen ) One oxygen atom = 16 g

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3(Si2O5)2(OH)2 An…

A: Given: chemical formula of the talc. To find : Total number of moles of oxygen in the sample.…

Q: In the laboratory, a student weighs out 0.0852 g of cobalt on balance.  How many atoms of cobalt are…

A: Molar mass of an element represents the mass of one mole of the element.

Q: Determine the number of CH;Clz molecules in 25.0 g CH;Clz. a) 0.294 molecules c) 1.28 x 1027…

A: Number of moles of CH2Cl2  is equal to the mass of CH2Cl2 divided by its molar mass.

Q: Convert all of the following to mol a)25.1 kg FeFe (NO3)2    b)0.5500 g C8H18   c)151 kg CaO…

A: From molecular weight we can calculate the no of moles and the no of molecules .

Q: Please assist with number 3

A: We are authorized to answer three subparts at a time since you have not mentioned which part you are…

Q: A 6.95-g sample of Barium Chlorate, Ba(ClO3)2, contains __________ mol of this compound.   a 31.8…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: How many molecules are in 52.35 grams of aspartame? C14H 18 ,05 2.89 X 1022 Atoms C subscript 14 H…

A: Option( B) is correct.

Q: Which of the following does NOT describe 44.0 g of propane, C3H8? a) the amount of propane that…

A: The number of moles of propane, C3H8, equivalent to 44.0 g of propane is; nC3H8=mC3H8MMC3H8=44.0…

Q: Convert 1.59 x 1022 molecules/formula units of X5Z4 into grams of the same compound. (Assume that…

A: The given data contains, mass of X5Z4=1.59×1022molecules/formula molar mass =(5×54.94 g/mol)+(4×8.72…

Q: How many moles of H3PO4 can be made from 1.39 X 1027 molecules of P4O10? 12 HCIO4 + P4010 4 H3 PO4 +…

A: When two reactive compounds are mixed, then they react according to the stoichiometry of the…

Q: A mixture consisting of 12.8 g of calcium fluoride and 13.2 g of sulfuric acid is heated to drive…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: Determination of Hydrate Formula: barium chloride hydrate  Data:…

A: While heating the hydrate BaCl2.nH2O, the water in it escapes as water vapor. The amount of salt…

Q: Dinitrogen oxide (or nitrous oxide), N2O, also known as laughing gas, is widely used as an…

A:

Q: You can also calculate percent composition from a formula. This is similar to percent abundance in…

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Q: Find the percent, by weight, of each component.

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Q: This number of particles is called Avogadro's number (NA) and has a value of... 6.02 x 10 – 23 0.602…

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Q: Calculate the mass of carbon dioxide produced from 15.6 g of octane, C8C18, in the 2C8H18(g)…

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Q: How many moles of ammonia contain 1.51 x 1024 NH3 molecules? A) 2.51 mol B) 0.399 mol C) 0.251 mol…

A: Number of moles = Number of molecules/6.0224 x 1023 Number of moles = Mass/molar mass

Q: A compound contains 70.6% C, 5.9% H, and 23.5% O by mass. The molecular mass of the compound is 136…

A: Given :-  % by mass of C = 70.6 % % by mass of H = 5.9 % % by mass of O = 23.5 %  Molecular mass of…

Q: Vitamin C has the formula C6H8O6. Calculate the number of vitamin C molecules present in a 0.250-g…

A: Number of moles is given by the ratio of mass of the substance to that of the molecular mass. 1 mole…

Q: 12. The mass in grams of 10.0 million molecules of sulphur dioxide is:  SO2    Answers:  a)1.06…

A: 1 mole = 6.022×1023 ( Avogadro's number )   Molar mass : The mass of one mole of molecules of a…

Q: C7H16(g) + O2(g) →   C2H2(g) + O2(g) →   C3H8O(g) + O2(g) →

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: 3.59X 10 Unit Conversions: 1. Calculate the number of oxygen atoms in 19 grams of magnesium…

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Q: Determine the mol H2O/mol CaSO4 if you have the following data to two decimal places (MM H2O =18.02…

A: Moles are ratio of mass to molar mass of substance.

Q: You analyze a sample of a compound you made in the lab and find that it has a percent composition by…

A: Answer: Empirical formula is C4H2O and three answers from the  given list are C4, H2, and O.

Q: 18. What is the number of grams of N2(g) that contains 9.02 x 1023 molecules? A. 18.7 grams B. 42.0…

A: Given the number of molecules of N2(g) =9.02×1023 moleculeswe are asked to calculate the amount of…

Q: B. TRUE OR FALSE: Read each statement carefully. Write TRUE if the statement is correct and FALSE if…

A: Percentage composition gives a brief ideas about each elemental composition as follows.

Q: Use the molar mass of Ca3(PO3)2 to calculate the number of formula units in 10.0 g of CP.  Give your…

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Q: Calculate the molar masses of the following substance. Gold NaOH (Sodium hydroxide) Mercury KMnO4…

A: Molar mass: The mass per mole of a chemical substances calculated by adding the molar mass of…

Q: 1.75 x 1023 atoms Pb converted to grams

A:

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3Si2O52OH2 An…

A: Given data: Number of moles of silicon = 13  Chemical formula of talc = Mg3(Si2O5)2(OH)2

Q: Make the following conversions: 1. 62.13 kg of Al to moles 2. 0.0235 moles of sugar, C,H,,O,, to…

A: For these conversions molar mass of each one is required.

Q: The number of hydrogen atoms in 0.500g of glucose (C6H12O6) is a. 12 b. 1.67x1021 c. 2.78x10-3 d.…

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Q: what mass of hydrochloric acid in grams must have reacted with magnesium if 9.13 grams of hydrogen…

A: In a balanced chemical equation, all elements involved in reaction have equal number of atoms on…

Q: 1. How many moles are in each of the given samples? a) 2.50 mL of water (assume density of water is…

A: Note : As per our guidelines we are supposed to answer first 3 parts .please resubmit the other…

Q: Which of the following contains the greatest number of molecules? A. 1 g of CH3CI В. 1 g of CH,Cl2…

A:

Q: Calculate the molar mass of chromium(III) chloride hexahydrate, CrCl3•6H2O, to 4 significant…

A: molar mass of chromium(III) chloride hexahydrate, CrCl3•6H2O is B

Q: Aluminum has a density of 2.70 g/cm^3. How many moles of aluminum are in a 13.2 cm^3 block of the…

A: Given,  Density of Aluminium = 2.70 g/cm3  Volume = 13.2 cm3

Q: 2NH3(g) + 3Cu0(s) N2(g) + 3Cu(s) + 3H20(1) a) If a sample containing 18.1 g of NH3 reacted with 90.4…

A: Limiting reactant :- Reactant which is present in lesser amount than required as per  balanced…

Q: Convert 1.43 x 10^23 molecules/formula units of X5Z3 into grams of the same compound. (Assume that…

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Q: A sample of a compound has a mass of 41.13g. The sample is found to contain 37.28g of carbon and…

A: Percent composition of the compound is described as the percent of mass of each component of the…

Q: Starting with 8.39 X 1018 grams of HCIO4, how many molecules of Cl207 can you make? 12 HC1O, + P4010…

A: In a balanced chemical reaction, stoichiometry gives the relationship between the amount 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.