How many particlcs arc there in 1.43 grams of a molccular compound with a molar mass of 233 g/mol?

Q: Describe how the knowledge of the percent compositionby mass of an unknown compound can help us…

A: Percent (%)composition by mass helps us in identification of the compound by comparing the relative…

Q: How many moles of k3po4 are in 195.37 g of k33po4?

A: Given :- mass of K3PO4 = 195.37 g  To calculate :- number of moles of K3PO4

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: How many moles of propylene (C3H6) are in 25.0 g of the substance?

A: Molecular mass of propylene (C3 H6 ) = (3× 12.01) + ( 6× 1.01) = 42.09 g / mol.  Given mass of…

Q: A compound contains only carbon and hydrogen and has aformula mass of 28.06 amu. What is its…

A: Given data: Molar mass of the compound = 28.06 amu

Q: A tube of Thothpaste contains 0.76 g of sodium monofluorphosphate (Na2PO3F) in 100 mL. a)what mass…

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

Q: Ir3 molecules of CH, mct with 7 molecules of O,. determine the munder of nlecules of CO, thur could…

A: CH4 + 2O2 = CO2 + 2 H2O ( balance equation) 1 molecule CH4 form = 1 molecule of CO2 So, 3 * 1…

Q: 3.135 A certain metal M forms a bromide containing 53.79percent Br by mass. What is the chemical…

A: Let the mass of the compound be 100 g. Then the mass of the Br is 53.79. Calculate the mass of the…

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: WE GE T THERE? many moles of electrons are required mol e-

A: As we know,   Charge of 1 mol electrons = 96500 C Mol of Ni = 8.3×10-2 mol Balanced chemical…

Q: How many grams of K2CrO4 are found in a sample containing 0.186 moles of this compound?

A:

Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is?

A: Given information,       Mass of C2H6O is 37.80 g.     Molar mass of C2H6O is 46.1 g/mol.

Q: A sample of hydrated aluminum sulfate wing 2.954 g was given to a student to be used in the water of…

A: Assuming the formula of hydrated aluminum sulfate is Al2(SO4)3 . yH2O where y = number of water…

Q: 9.) How many moles of glucose, C6H1206 are in: (a). 538grams (b.) 1.00 grams of this substance?

A: The molar mass of a compound is furnished as the mass occupied by one mole. Hence the ratio of the…

Q: A tube of toothpaste contains 0.76 g of sodium monofluorophosphate (Na2PO3F) in 100 mL.  What is the…

A: Given : Mass of sodium monofluorophosphate i.e Na2PO3F = 0.76 g

Q: How many molecules are in 6.50g of disilicon trioxide(Si2O3)?

A: Given that,6.50g of disilicon trioxide

Q: A hydrocarbon molecule contains twice as many hydrogen atoms as carbon atoms. It's molar mass is…

A: Molar mass of hydrogen = 1.00784 g/molMolar mass of carbon = 12.0107 g/mol

Q: how many grams of Sn are there in a sample of Sn that contains the same number of moles as 57.9 gram…

A: moles = given mass ÷ molar mass  Mole of He = 57.9 ÷ 4 = 14.47

Q: Define the term formula weight (FW) of a substance?

A: The formula weight of a substance has to be defined.

Q: Ascorbic acid (CH,O,) is also known as Vitamin C. What quantity in molecules of CH,O, does a Vitamin…

A: Given: Mass of C6H8O6 = 1025 mg Or mass of C6H8O6 = 1025 ×10-3 g And we know that the molar mass of…

Q: How many moles of propane (C3H6) are in 25.0 g of the substance?

A:

Q: What's the percentage by mass of Cl in MgCl2 if it  is 24.6% Mg by mass?

A: Intrdouction : %age by mass of Mg = 24.6%

Q: How many moles of H2SO4 are there in 191 mL of a stock solution that reads 0.601M ?

A: Interpretation -  To determine the number of mole of  H2SO4 are there in 191 mL of a stock solution…

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: How many molecules are contained in a pentanal (C5H10O) sample with a mass of 5.27 g?

A: 1 mole of any substance contains Avagadro number (6.023 *1023) of species. therefore, 1 mole of…

Q: A white-colored solid contains 75.26% Ag by mass, and the rest is chlorine. Enter the empirical…

A:

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: CALCULATE TH EMASS IN GRAMS OF 1.11 MOL OF CH4-

A: Given:   The number of moles of CH4 is 1.11 mol. The molar mass of CH4 is 16.04 g/mol.

Q: How many moles of allicinare present in 5.00 mg of this substance?

A: Allicin is a chemical compound that characteristic smell of garlic. The chemical formula of allicin…

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: What are two errros that could cause one of your mass percentages to be too low?

A: Mass percent or weight percent of a component in a substance can be defined as the mass of the…

Q: A binary compound between an unknown element E and hy- drogen contains 91.27% E and 8.73% H by mass.…

A: using the molecular formula is E3H8 Given moles of E presents in compound is 3

Q: The molecular formula of allicin, the compound responsiblefor the characteristic smell of garlic, is…

A: The molecular formula of allicin is C6H10OS2. The molar mass of allicin is calculated as,

Q: How many MOLES of chromium(II) sulfite are present in 4.63 grams of this compound ?

A: Given :-  Mass of chromium(II) sulfite = 4.63 g  To calculate :-  Number of moles of chromium(II)…

Q: How many moles are in a sample of Saccharin with a mass of 35.31 grams? Saccharin is an artificial…

A: We know that, number of moles can be expressed as,

Q: How many grams of C are in 34.50 mg of sodium carbonate (Na2CO3)?

A:

Q: What is the molar mass of MgS04?

A: Molar mass can be calculated by adding the molar masses of all the species that are present in the…

Q: Calculate the mass percent of each element in the compound.  What mass of carbon (in milligrams) is…

A: Capsaicin, the compound that gives the hot taste to chilli peppers, has the molecular formula…

Q: What is the molar mass (g/mole) of cream of tartar (KHC4H4O6) find the mass of each atom and add…

A: The sum total of masses of all atoms in a molecule in grams amounts to the mass of 1 mole of that…

Q: Fillm the name and emprical forla of cachionic compound that could be formed rom the tons n ths…

A: a) The ions given are Pb4+ and S2-.

Q: Small amounts of tungsten (W) are usually added to steel to strengthen and harden the steel. Two…

A:

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

A:

Q: A mothball, composed of naphthalene (C10 H8 ), has a mass of 1.50 g. Part A How many naphthalene…

A: 1 mole of any atom or molecule contains Avogadro's number of atoms or molecules. Avogadro's number =…

Q: how many molecules are present in 0.340g of lead (IV) phosphate?

A: The number of molecules in 0.340g of lead (IV) phosphate are to be calculated. The mass of compound…

Q: How many moleculesof allicin are in 5.00 mg of this substance?

A: Given information: Mass of allicin = 5.00 mg

Q: ss in grams of CH:OH (MM = 32.04 g/mol) would nee

A: Molality (m) = moles of solute/maas of solvent(kg) Moles = mass/MM       = w/32.04  Mass of solvent=…

Q: grams

A:

Q: A 0.235 g sample of Manganese  (Mn) was heated in a crucible  and produced   0.372 g of  a compound…

A: Given: Mass of Manganese= 0.235 g Mass of compound, MnxOy= 0.372 g To estimate: Empirical formula of…

Q: B. How many number Na* ions in 3 g of Na3PO4?

A: Given, The mass of Na3PO4 = 3g Note: one mole (molar mass ) of any substance contains Avogadro…

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.