16. How many moles are contained in the following? (a) 25.0 g NaOH (b) 44.0 g Br2 (c) 0.684 g MgCl, (d) 14.8 g CH,OH (e) 2.88 g Na,SO, (f) 4.20 lb.Znl,

Q: What mass of Cu(IO3), can be formed from o. 500 g of CUSO4 5H,O?

A:

Q: why kg molecule -1 changed to kg  how did they remove molecule-1 in the question

A:

Q: (a) Calculate the number of moles of C and H present in the compound. (b) Find the mass percentages…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: 3) The molar mass of Cu (CO3)2.3H20is: 237.562 g/mol a) b) 183.53 g/mol 201.53 g/mol 160.88 g/mol c)…

A:

Q: Seawater is approximately 4.0% by mass dissolved ions, 85% of which are from NaCl. (a) Find the mass…

A: Solution- (a).The mass of ions is 4.0 % and 100% of ions contain 85% NaCl. So, the mass % of NaCl is…

Q: 5) 0.7971 g of molecule, X, is found to contain 3.0 x 1022 atoms. Deduce the identity of X. Given N…

A: Given: Mass of X2 = 0.7971 g Atoms of X2 = 3.0×1022 NA = 6.023×1023 mol-1

Q: PLEASE INCLUDE EXPLAINATION, THANK YOUUUU: 4) Determine how many atoms are in 5.75 moles of a…

A: As we know,  1 mole of any substance contains Avogadro's No. of atoms of that substance. where…

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: The emperical formula can be calculated as follows

Q: Complete the Avogadro's Statement for the element hydrogen: 1 mole of hydrogen hydrogen atoms =…

A: A mole is defined as that amount of the substance which has mass equal to gram atomic mass if the…

Q: The mole is defined in terms of the carbon-12 atom. Usethe definition to find (a) the mass in grams…

A: The quantity of a substance which consists of the number of carbon atoms in 12 g of pure carbon-12,…

Q: In a combustion,27.90 g CH4 combine with 110.5 g O2 to make 76.50g CO2 and 62.65g H2O. Does this…

A: As mass in reactant and product side is not equal so it does not follow law of conservation of mass.

Q: Seawater is approximately 4.0% by mass dissolved ions, 85% of which are from NaCl. (a) Find the mass…

A: The concentration of seawater is 4% by mass. This implies that 4g of solute is present in 100 g of…

Q: 1: Find the nunber of Na" ions in 2.92 g of NasPO,

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: 1 How many are the oxygen atoms in 111 g of Ca(OH)2? (Atomic mass of Ca = 40)

A: Given 111g of Ca(OH)2

Q: A substance is 10% carbon by mass. If the total mass of substance is 25 grams, (a) what is the mass…

A: It is based on the concentration terms. Here we are required to find the mass of carbon present in…

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

A:

Q: This organic compound consists of 54.4% carbon, C and 9.1% hydrogen, H, while the remaining percent…

A:

Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

Q: Consider the following reaction: CaCl2(aq) + K3PO4(aq) -> Ca3(PO4)2(s) + KCl(aq) If you haven't done…

A: The given mass of  = 16.642 gThe mass of  needed = ?

Q: Determine the molar mass of Al2(SO.),-5H,0.

A: To determine the molar mass of

Q: 2.a) An oxide of gold (AuxOy) thermally decomposes. A 0.205 g sample of the oxide is heated, forming…

A: The considered oxide of gold is represented in the format AuxOy

Q: A) How many grams of Mgl, is present in a 0.4745 g sample that is 53.21% Mgl2 (278.11 g/mol)? B)…

A:

Q: Calculate each of the following quantities. (a) mass in kilograms of 4.8  1020 molecules of NO2…

A:

Q: 2) a) Describe how the presenceof Bromine, Nitrogen and suljhur in an organic compound can be…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Titanium is a metal with the same streangth as steel but 45% lighter.It is also resistant corrosion…

A:

Q: 3.B) Determine the number of moles and mass of Al(OH)3 produced.  Al2(SO3)3 + 6NAOH -> 3Na2SO3 +…

A: The part (b) is related with part (a), so for solving (b), information of part (a) should be…

Q: In the molecule C6H12O6 are there will be 12 moles of hydrogen per mole of glucose?

A: The molecular formula of glucose = C6H12O6 It is obvious as seems from the molecular…

Q: N2(8) + 3 H2(8) → 2 NH3(8)

A:

Q: 3. What is the mass in grams of 0.0435 moles of alcohol (C,H;OH)?

A: Molar mass = 2 • ( molar atomic mass C ) + 6 • ( molar atomic mass of H ) + ( molar atomic mass of O…

Q: 5 g of hydrated barium chloride is heated in a crucible until the mass of the sample no longer…

A: Given: Mass of hydrated barium chloride = 5 g Mass of sample after heating = 4.26 g The loss of mass…

Q: Please answer these questions on your Page 6 (a) The percent composition of an unknown substance is…

A:

Q: .a) An oxide of gold (AuxOy) thermally decomposes. A 0.205 g sample of the oxide is heated, forming…

A: a) Given : Mass of AuxOy reacting = 0.205 g And mass of Au formed = 0.183 g Molar mass of Au = 197…

Q: 5.) Ethylene glycol is a coolant widely used in automobiles. If its molecular formula is C2H6O2, how…

A: Number of moles is defined as the amount of the substance divided by the molecular weight of the…

Q: 5. a) How many moles is 12.04 x 10 molecules of CaCO,? b) What is the mass of this many moles?

A: Since we know that   1 mole of any substance = 6.022 × 1023 molecules of that substance. And  Number…

Q: See the example in Introduction for set-up of calculations. Calculate the number of a) moles of F b)…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

Q: Please answer these questions on your Page 6 (a) The percent composition of an unknown substance is…

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Q: average atomic mass

A:

Q: What amount of CuSO4•5H,O, in moles, does this mass represent? mass = 1.787 g %3D X mol resubmit…

A: Given : Mass of CuSO4.5H2O = 1.787 g And molar mass of CuSO4.5H2O = 249.69 g/mol.

Q: 32 Calculate the number of moles of: (a) S2- ions in 6.56 mol of Na,S (b) Mg2+ ions in 8.320 mol of…

A:

Q: Be sure to answer all parts. (a) Determine the mass in grams of 3.05 moles of glucose (C6H1206). g…

A: To determine the Mass (in grams) of 3.05 moles of Glucose To determine the Number of Moles of 58.9…

Q: If a 82.4 g sample that is 86.0% K¿Cr50, (294.2g mol") by mass is allowed to react with 78 ml of HCI…

A: The balanced equation for the reaction of potassium dichromate with HCl is,

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.