How many atoms of vanadium are in 1.28 grams of vanadium?

Q: E 0.379 mol of Cr

A:

Q: If 6.750 grams of lithium carbonate was used in the reaction, how many grams of carbon dioxide would…

A: The equation for the decomposition of lithium carbonate is as follows. Li2CO3 → Li2O + CO2 This is a…

Q: How many grams of potassium are in 2.91 g potassium sulfide?

A: Given :- mass of K2S = 2.91 g  To calculate :- mass of K (in g)

Q: How many moles of Al are there in 41.5 grams of Al?

A: Since number of moles of atom = mass of atom / Atomic mass of atom

Q: How many grams of oxygen are in 19 grams of sodium bicarbonate,

A: Number of moles = mass/molar mass  Molar mass of NaHCO3 = 84.007 g/mol  Molar mass of O = 15.999…

Q: 3.11  mL of seawater contains about 1.31×10-14  moles of gold, how many atoms of gold are in that…

A:

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

A: Mass (%) of an element in compound = 100 x Mass of element/Mass of compound Number of moles =…

Q: 2. What is the mass in grams of 6.8x10 molecules of ammonium?

A: We have to predict the mass of ammonia.

Q: How many atoms of vanadium are in 1.28 grams of vanadium ?

A: 1 mole of vanadium contains Avogadro’s number of atoms. The number of mole of 1.28 g of vanadium…

Q: How many grams of iron are combined with 45.1 grams of oxygen to make the iron(II) oxide compound?

A: Balanced reaction taking place is as follows: Molar mass of Fe = 55.845 g/mol Molar mass of O2 = 32…

Q: How many moles of NH3 are there in 1.93 grams of NH3?

A: No. Of moles = gram weight / molar mass Molar mass of NH3 = 17

Q: How many moles are present in 74.3g of titanium?

A:

Q: What is the mass in grams of 68.3 mol Xe?

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: In 1.99 g of quartz, how many oxygen atoms are there?

A: Quartz is SiO2 and its molar mass is 60.084gmol-1  So, first calculate the moles of SiO2  moles of…

Q: How many oxygen atoms are in 4.00 g of quartz?

A: Quartz is nothing but SiO22 moles of oxygen atoms per mole of SiO2mass of quartz (SiO2) given = 4…

Q: How many oxygen atoms are contained in a 5.525 g sample of calcium phosphate?

A: First of all, we will calculate the no. of moles of calcium phosphate in 5.525 g of sample and then…

Q: How many ATOMS of sulfur are present in 3.39 grams of sulfur tetrafluoride ?

A:

Q: How many moles of scandium are in 3.55g scandium?

A: We can determine the moles of any substance from the given formula : Moles of Substance = mass of…

Q: A substance contains 3.024 g hydrogen, 30.97 g phosphorus, and 64.00 g oxygen. How many grams of…

A:

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

A: According to given data%mass of Tellurium in compound=28.53 %and% mass of Bromine in compound=71.47…

Q: How many atoms of copper are there in 0.0075 g of copper?

A:

Q: How many grams of C are present in 4.84 grams of carbon dioxide ?

A: We have to find grams of C are present in 4.84 grams of carbon dioxide

Q: How many grams are in 9.05 x 1023 atoms of sulfur?

A: Given,  The mass of sulfur present in 9.05 × 1023 atoms of sulfur is:

Q: How many grams of Sn are there in a sample of Sn that contains 7.54×1023 atoms?

A: Given, number of atoms of Sn = 7.54 x 1023 atoms we know,  => moles of Sn = number of Sn atoms…

Q: how many atoms are present in a 1.48 micromol

A: 1 mole of any substance contains Avogadro number of entities  Avogadro's number = 6.022 x 1023…

Q: How many atoms of vanadium are in 1.28 grams of vanadium ?

A: Given: Mass of Vanadium = 1.28 g Atomic mass of Vanadium = 51 g/mol To Calculate: Atoms of Vanadium…

Q: Calculate the amount in atoms in 29.22 grams of silver.

A:

Q: How many grams of iron are combined with 62.2 grams of oxygen to make the iron (II) oxide compound?

A:

Q: What is the mass of Li+ in 50.25 g of Li2CO3 ?

A: The concept of stoichiometry is used to solve the given question. The moles have to be calculated…

Q: How many grams of oxygen are in 48 grams of sodium bicarbonate, NaHCO3?

A: 1 mole = 6.022×1023 (Avogadro's number) The mass of 1 mole of atoms is called atomic mass For…

Q: how many grams are in 4.46 x 10 24 atoms of carbon?

A: Number of carbon atoms present = 4.46 x 1024 Atomic mass of carbon is 12 grams Atomic mass means the…

Q: How many moles are in 33.0 g of Se? How many atoms of N are in 5.6 g of N?

A: Given :-  Mass of Se = 33.0 g  Mass of N = 5.6 g  To calculate :-  i) no. of moles of Se  ii) number…

Q: How many grams of carbon are in 402.1 g of carbon tetrachloride?

A:

Q: if you have 3.64 X 10^26 atoms of cobalt, how many grams do you have?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many atoms of Pt are present in 2.53 moles of Pt?

A:

Q: How much does 2.1 moles of calcium hydroxide weigh in grams?

A:

Q: What is the mass of 0.900 mol of BCl3?

A:

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.