Q/Choose between parentheses 1- moles of substance contain ..... particles * (Non of these/18.066 ×10²³ /3.011 ×10²³ /6.022×10²³/12.044 × 10 ²³) 2-A compound’s molar mass is calculated by * (dividing the number of grams of the sample by Avogadro’s number/ adding the number of atoms present in the compound./ adding the atomic masses of all the atoms in the compound and expressing thatvalue in g/mol. / multiplying Avogadro’s number times the number of atoms present in thecompound./ Non of these)

Q: A fertilizer is advertised as containing 14.0% nitrogen(by mass). How much nitrogen is there in…

A:

Q: Mass of oxygen = 0.49g- 0.33g = 0.16g Number of moles = given mass / molar mass Number of moles of…

A:

Q: A chemist requires 0.471 mol Na2CO30.471 mol Na2CO3 for a reaction. How many grams does this…

A:

Q: How many molecules (not moles) of NH3 are produced from 5.01x10-*g of H2? Express your answer…

A: Given: Mass of H2 = 5.01×10-4 g.   Balanced chemical reaction is given by,

Q: Label the following parts of the chemical equation below: coefficient, subscript, products,…

A: Solution:

Q: How many molecules (not moles) of NH3 are produced from 7.04×10−4 g of H2?Express your answer…

A: The balanced chemical equation for the formation of ammonia, NH3 from its constituents nitrogen, N2…

Q: How many moles of specified particles are present in a sample of each of the following substances if…

A:

Q: Why might the expression “1 mol of chlorine” be confusing? What change would remove any uncertainty?…

A: According to mole concept, one mole of any atom or molecule is equals to 6.022×1023 molecules.

Q: complete the following table for tnt trinitrotoleune

A:

Q: How many moles of phosphorus pentachloride, PCl5, are present in a sample that contains 4.60 moles…

A:

Q: compound is isolated from the rind of lemons that is found to be 88.14% carbon and 11.86% hydrogen…

A: The mass or the amount of a particular substance in the total mass of a sample is called its mass…

Q: For #60 Would the molar mass (g/mol) of hydrogen be 1g/mol or 2g/mol for m= (1.5x10^24 atoms*…

A: (60) According to the mole concept - One mole of substance = atomic /molar mass = 22.4 L =…

Q: Jse the periodic table to calculate the GFW (molar mass) of aluminum sulfate, Al2(S04)3 to 5…

A: Percent  composition is used to determine the mass percentage of each element present in the…

Q: Molar Mass: [x] Give your answers in g/mol, but you don't need to include those units in the answer…

A:

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: We have been asked to calculate the no. Of moles of oxygen in a sample of methyl ter-butyl ether…

Q: Which has the greater number of particles, 6.022x1023 N, molecules or 28.02 g of N, molecules?…

A:

Q: Convert 6.00 moles of calcium to atoms. O 8.50x1024 atoms O 1.56x1023 atoms O 3.61x1024 atoms…

A:

Q: How many grams of HNO, are in 3.255 × 1022 molecules of HNO,? Show the conversions required to solve…

A:

Q: 6. Cra(P207)3 a. Calculate it's molar mass b. 4.93 mols Cra(P207)3 = _g Cra(P207)3 c. 78.45g…

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

Q: Calculate each of the following quantities:(a) Mass in grams of 8.35 mol of copper(I) carbonate(b)…

A: a) Mass in grams of 8.35 mol of copper(I) carbonate can be calculated as, Now substitute the know…

Q: 4. Bismuth (II) Nitrate a. Calculate it's molar mass b. 84.56 g Bismuth (II) Nitrate = mols Bismuth…

A:

Q: Minerals in soils and soil amendments (e.g., fertilizers) are described by formula units that…

A: To calculate: What is the mass in grams of 0.518 moles of calcium carbonate (CaCO3)?

Q: Mass Number of atoms 1 atom of Mg amu atom(s) Katomic mass from the periodic table) 1 atom of Mg…

A:

Q: Calculate each of the following quantities:(a) Mass in grams of 8.42 mol of chromium(III) sulfate…

A: (a) Molar mass of Cr2(SO4)3 .10H2O = 2 x 52+3(32.06+ 64)+10(2.016+16)…

Q: 9. A 0.1342-gram sample of an unknown compound composed of C, H, and O was burned in air, producing…

A:

Q: 3. What physical property of water and HCl allows us to separate them from the zinc chlorine…

A: Solution: We know the solubility principle i.e. likes dissolves like. Since HCl is the strong acid…

Q: 4. 4.00 moles of sulfur dioxide SO2? 2.50 moles of methane CH,? How many moles are there in: 6.…

A: Each mole of any substance has Avogadro number of molecules. Each moles of any substance has…

Q: Butane, C4H10 , burns with the oxygen in air to give carbon dioxide and water.2C4H10(g) + 13O2(g) →…

A:

Q: MOLES/MOLECULES T04/S14 If a sample of POCI, is found to contain 6.58 mol of O atoms how many moles…

A:

Q: 4. How many Mg atoms are in 3.24 moles of Mg? Starting amount (moles) Conversion Factor Ending…

A:

Q: Molar Masses A = 17.813- mole D = 41.486- mole E = 33.011- mole Y = 19.280 X = 255.691 mole Z =…

A: Given that -  Molar masses of elements are -  A = 17.813 g/mole D = 41.486 g/mole E = 33.011 g/mole…

Q: Calculate the mass in grams of each of the following samples. (Remember from class that the…

A: Given, a. moles of potassium chromate = 0.251 mol b. moles of lithium perchlorate = 1.51 mol c.…

Q: Calculate the number of molecules in each of the following samples. (Remember from class that the…

A:

Q: 3. How many moles are in 1.838 liters of nickel, Ni? xby 224L MOLES LITERS by 22.4L MOLES 4. How…

A:

Q: 1: The empirical formula of hydrocarbon that contains 18.4% H and 81.6% C by mass is? B) CH3 2: What…

A: Balanced chemical equation are those in which  number of atoms on left hand side and right hand side…

Q: Avogadro's number is the number of O grams in 1 mole of a compound. grams in 1 mole of an element.…

A:

Q: The balanced equation for the Haber Process is shown below. In this reaction, nitrogen and hydrogen…

A:

Q: A substance has a molar mass of 133.4 g/mol.  What is the mass of a sample that contains 0.0709…

A: Anything which is in the number of 6.022×1023 ( Avogadro's number ) is called one mole. For example…

Q: Box the given and underline the unknown. MASS GRAMS 1. How many moles of nickel are in 82.34 grams…

A:

Q: S + 6 HNO3 --> H₂SO4 + 6 NO2 + 2 H₂O In the above equation how many moles of water can be made when…

A: Given  Mass of HNO3 = 162.9 grams

Q: A hydrate of cobalt(II) chloride had a mass of 165.88 g before heating. After heating, the anhydrous…

A: Mass of CoCl2 before heating (hydrated) = 165.88 g Mass of CoCl2 after heating (anhydrous) = 130.9 g…

Q: The gemstone tanzanite was first discovered in Tanzania in 1967. Like other gemstones, it contains…

A:

Q: How many grams of hydrogen gas are formed by the reaction of 3.457 g of aluminum with nitric acid?…

A:

Q: S    +   6 HNO3  -->   H2SO4   +  6 NO2   +   2 H2O In the above equation how many moles of water…

A: First We have to determine moles of nitric acid.

Q: 1- Sodium carbonate with the molecular structure of Na2CO3 with formula weight of the sodium…

A: Answer: In this question with the help of given mass and molar mass we have to calculate the number…

Q: How many molecules (not moles) of NH3 are produced from 6.21x10g of H2 ? Express your answer…

A: Given Mass of H2 = 6.21 x 10-4 g moles of H2 = mass of H2molar mass of H2 = 6.21 x 10-42 = 3.105 x…

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: Given : Chemical formula of methyl tert-butyl ether is CH3OC(CH3)3. And moles of carbon in…

Q: How many moles of H2SO4 do you have if there are 1.64x10^12 molecules of H2SO4?

A:

Q: How many molecules (not moles) of NH3 are produced from 7.43×10-4 g of H2? Express your answer…

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.