Find the moles of O2 with the given mass of 0.634 grams of O2

Q: If 454 g of NH4NO3 decomposes, how much N₂O and H₂O (in grams) are formed? mass of mass of

A: Late of conservation states that sum of masses of reactant is equal to total mass of products.…

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: How many moles are in 33.1 g of SO3? How many molecules does it contain?

A: Amount of SO3 given = 33.1 g Moles Of SO3  = To be determined No of Molecules of SO3 = To be…

Q: How many atoms of Pb are present in 254 grams Pb?

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

Q: How many moles of Ag are in 312 g of Ag?

A: Given for the Ag ( silver) element  Mass of Ag given = 312 g  We know the molar mass of Ag…

Q: What is the mass in grams of N in 0.82g of NaNO3

A:

Q: A compound is made by carbon, hydrogena and nitrogen and 1 g of this compound contains 91.5 mg of…

A: To write the molecular formula of the compound, the number of moles of each element should be…

Q: Is the subscript of an element the same as its number of moles? Does the subscript mean how much…

A:

Q: What is the mass of 10.7 mol of N20? 10.7 g 471 g 4.11 g 52.3 g

A: 1 mol of a molecule= molar mass of molecule

Q: Determine the mass, in grams, of 0.245 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A:

Q: How many grams of NaCl are in 38.0 moles of NaCl?

A: Consider the given information as follows; Moles of NaCl = 38.0 mol     Mass of NaCl = ?

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: How many grams of Br are in 305 g CaBr₂ ?

A: No. of moles = mass/molar mass  Mass = moles × molar mass  Given: Mass of CaBr2 = 305 g

Q: Calculate the mole of 0.912 g of copper

A: We have to find the mole of 0.912 g of copper.

Q: For an experiment, a student used 17.50 g sodium chloride.  How many moles of sodium chloride did…

A: Number of moles of any substance can be calculated by using the formula :               number of…

Q: In N2O , 28 g N combines with 16  g O. Determine grams of O and N in NO2. Group of answer choices

A:

Q: Determine the number of moles of substance present for the following quantities 4.0 x 1010 atoms of…

A: The problem asked is to find out the number of moles present in 4.0 x 1010 atoms of P. This means…

Q: Determine the mass, in grams, of 0.725 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A: We know,  Number of mole=given masss/molar mass Given mass=Number of moles x molar mass

Q: How many moles are equal to 1.20 x 1024 atoms of sulfur (S)? Round to 2 decimal places.   a 0.20  b…

A:

Q: Calculate the number of atoms of each element in C12H22O11 and  Calculate the moles of each…

A: The given molecule is sugar. Molecular formula of sugar is C12H22O11. A molecular formula is used to…

Q: the number of moles of chlorine in 12.5 g of carbon tetrachloride?

A: Number of moles of chlorine in 12.5g of CCl4. Here first we find moles of CCl4 in 12.5g that is 0.08…

Q: What is the mass in grams for 11.23 moles of beryllium-10 if each atom has a mass of 10.0135 amu?

A:

Q: Where did 8.67 moles get calculated

A: To determine the volume of 0.85 M NaOH required to exceed the buffer capacity, we need to first…

Q: 6. Which one of the following samples contains the largest number of molecules? a. 3.0 moles of C3H8…

A:

Q: 3. Elements B and N form a binary compound BNy When 12 grams of this compound was made from its…

A: Mass of compound = 12 g  Mass of nitrogen = 7 g  We need to determine formula of compound.

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.