How many grams of zinc are there in 22.7 g of ZnCl₂? a. 035 g b. 10.9 g c. 0.17 g d. 1476 g

Q: Determine the mass in grams of 8.72 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: We have 8.72*1021 atoms of Ba. Mass of one mole of Ba is 137.33 g We have to calculate the mass of…

Q: Determine the number of atoms in 55.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Here given, the mass of one mole of sodium is 22.99 g. So, in 55 grams of sodium, there are…

Q: 48. How many molecules of caffeine, C4HSN2O, are there in 18 g of caffeine? a. 1.12 ×10E23 b. 1.05…

A:

Q: C12H22011 + 12O2 12 CO2 + 11 H20 If you have 61.09 g of sugar (m.w. 342.34 g/mol) and 62.91 g of O2…

A: The moles of sugar in 61.09 g of sugar is, number of moles=given massmolar mass…

Q: If 26.98 grams is the mass of 1 mole of Aluminum, 26.98 grams =1 mole of Al 13.49 grams = 0.5 moles…

A: Mole concept relates the number of moles with the molar mass and mass of the substance. Just like…

Q: A substance contains 35.0 g nitrogen, 5.05 g hydrogen, and 60.0 g of oxygen. How many grams of…

A: The question is about calculating the mass of Nitrogen in a 169 g sample of the substance -

Q: 3. A sample of sugar, C.H12O6, has a mass of 90.0 g. It has the same number of molecules as A) 45 g…

A:

Q: Calculate the mass of each of the following gases a) 1.61 of methane (CH4) b) 1282cm3 of sulphur…

A: Given,  a). 1.6 L of methane  b). 1282 cm3 so sulfur dioxide  c). 4 L of neon  d). 0.1 L of nitrogen…

Q: A 6.95-g sample of Barium Chlorate, Ba(ClO3)2, contains __________ mol of this compound.   a 31.8…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: What is the mass of 3.30 × 10 ²³atoms of silver, Ag? (Sec. 8.4) (a) 0.549 g (b) 25.8 g (c) 59.1 g…

A: The atomic mass of an element will be equal to the Avogadro number of particles ( be it atoms,…

Q: A silver wire has a diameter of 0.500 mm. What length of this wire contains exactly 1.00 mol of…

A: The given data: The diameter of silver wire = 0.500 mm The number of moles of silver = 1.00 mol The…

Q: Determine the mass in grams of 4.83 × 10²¹ atoms of barium

A: Given :- number of atoms of Ba = 4.83 × 1021 atoms  Mass of 1 mol Ba = 137.33 g  To calculate :-…

Q: Calculate the mass of CBr4 a) 320 g b) 332 g c) 92 g d) none of these

A: Mass of C = 12g/mol  Mass of Br = 80g/mol

Q: If the initial mass of A is 18.03 g. calculate the mass of A remaining after 2.00 min. mass of A:

A: k = 0.0177s-¹  Ao = 18.03g  t = 2×60 = 120sec  ln[At] = ln[A] - kt            = ln[18.03] -…

Q: → 2NH3 (9) 1. N0 + 3H, 2. CO20) 2(g) CO(NH,2) + H,O (6), + 2NH, 2(g) 3(g) 3. C,H210) + H,O (a) 2CO,…

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

Q: 9.31 g is the same mass as O 93.1 cg O 9310 mg O 931 kg 0.0931 dg O 931 mg

A: 1 cg = 10-2 g93.1 cg = 93.1 ×10-2 g93.1 cg = 0.931 g   1 mg = 10-3 g9310 mg = 9310× 10-3 g9310 mg =…

Q: Consider Cl2+F2=CLF3 (ΔH°f = -164.65 kJ/mol) . 1. If 42 g of F2 is combined with 142 g of Cl2, how…

A: Balanced chemical equation: Cl2  +   3F2  ------>   2ClF3 Number of moles = Mass/molar mass

Q: A 85.6 g sample of Fe304 reacts with 18.2 g of CO to form FeO and CO2. FezO4(s) + CO(g) 3FEO(s) +…

A:

Q: For each reaction, predict the sign and find the value of ΔS°:

A: Given:-                     a    3NO2g +H2Ol  →2HNO3l +NOgb   N2g +3F2(g)   →2NF3gc   C6H12O6s +6O2g…

Q: CHISE alum (KCr(SO, 12H,0).(Mm alum =499g/mol), Calculate the mass of water in 189 g sample of this…

A: In 499 g of alum, the amount of water is 216 g.

Q: A piece of aluminum foil measuring 11.20 cm × 6.00 cm × 0.566 mmis dissolved in excess HCl(aq). What…

A: Given, Aluminium foil measuring = 11.20 cm × 6.00 cm × 0.566 mm Density for Al = 2.70 g/cm3   Volume…

Q: A. 2NO2(g) → N2O4(9) B. Fe(s) → Fe(1) C. 302(g) → 203(g) D. 12(g) → 12(s) E. 2Fe(s) + O2(g) →…

A:

Q: (a) CaCO,(s)²Ca²*(aq) + CO,²-(aq) (b) Mg,(PO,);(9) =3 Mg²"(aq) + 2 PO,' (aq) (c) CO(g) +…

A:

Q: How many grams of Ca(NO3)2 contains 36 grams of oxygen atoms? (A) 15 g (B) 30. g (C) 24.5 g (D) 37…

A: molar mass is defined when we take mass for only one mole ie, for 6.023 ×10-23 atoms. If we have to…

Q: 1. How many grams are present in 12 atoms of Potassium? a. 7.8 grams b. 3.91 x 10-22 grams 39.1…

A:

Q: What mass of Ba(NO3)2 (261.34 g/mol) is needed to convert 2.33 g of NaIO3 (197.89 g/mol) to…

A:

Q: Determine the mass in grams of 6.32 × 1021 atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Number of moles of a substance is equal to the number of atoms divided by avogadro's number. Write…

Q: Determine the mass, in grams, of 0.580 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A:

Q: 10.91 9/mol 2) KOHH 3) BeCla )CI = a(35 45)= 0.91 g /mol 5) Big 2CF lir keti l-15-aa

A: 3.Molar mass of BeCl2  Be mass = 9.012 g/mol        Cl mass = 35.5g/mol BeCl2 = 9.012 + (2×35.5) =…

Q: 38. How many grams of hydrogen are there in 2.5 g of water? b. 0.28 g a 3.5 g c. 0. 95 g d. 2.22 g

A: Given data  Given mass of water=2.5g Grams of hydrogen=??

Q: 4.00 moles of carbon have a mass of? a. 4.60 g b. 23.0 g c. 92.0 g d. 11.0 g e. 48.0 g

A: The molar mass of carbon=12 g/mol The given number of moles of Carbon=4.0 mol

Q: Determine the mass in grams of 6.03 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: The given mass of 1 mole of carbon atoms = 12.01 g So, the mass of 6.022×1023 atoms of carbon =…

Q: Write the expression for the equilibrium constant for each equation.

A: The equilibrium constant is the ratio of the product of the concentration of products to the…

Q: re the masses of C and H ( in grams)? (MM C = 2.01 g/mol, MMH = 1.008 g/mol) (A) 55.19 g and 10.81 g…

A: Theoretical yield = actual yield/% yield

Q: Determine the mass of sodium in 15.5 g of NaNO3.   a. 17.4 g   b. 0.298 g   c. 4.19 g   d.…

A: Given that,mass of NaNO3 = 15.5 g Molar mass of NaNO3 = 84.9947 g/mol moles of NaNO3 = (mass of…

Q: What is the mass of ten billion billion molecules of carbon dioxide? (That is 1.0 x 1019 molecules)…

A:

Q: A 12.37 g sample of silver nitrate is reacted with 11.9 g of barium chloride according to the…

A: number of moles = mass/molar mass  mass = moles × molar mass

Q: Determine the mass in grams of 5.30 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: 1 mole of a substance equal to  6.022×1023 atoms which is Avogadro’s number. Thus, the gram value of…

Q: Determine the mass in grams of 8.71 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: The number of moles of a substance is determined as the number of molecules, atoms or ions upon the…

Q: Balance each reaction and write its reaction quotient, Q꜀:

A:

Q: A 115.95 g of a sample is found to contain 71.95 g C, 16.13 g H, and 27.87 g N. If the mw is 116.21…

A: The molecular weight of the organic compound is the sum of the molar mass of each atoms.

Q: Determine the mass, in grams, of 0.750 moles of S (1 mol of S has a mass of 32.07 g).

A:

Q: 24.3 g He = ____________ mol He

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass.

Q: A 0.8870 g sample containUng Qaix Naci and KGI was Teated win AgNO3. formed had a mass of 1.913 g.…

A:

Q: Calculate the mass of AIPO3 a) 58 g b) 74 g c) 79 g d) 106 g

A: We know that, In 1 mol, Mass of Al= 27g Mass of P=31 g Mass of Oxygen=16

Q: What is the mass of 0.560 moles of chlorine gas?   A. 19.9   B. 63.3   C. 127   D. 39.7…

A:

Q: Determine the number of atoms in 61.0 grams of calcium, Ca.

A: Given;

Q: Calculate the mass in grams of 8.35 × 1022 molecules of CBr4

A: We have given that, No.of molecules of CBr4 = 8.35 ×1022 we know that from avogardo's law 1 mole of…

Q: 8. The relative mass of carbon is 3/8 that of an oxygen molecule. How many grams of carbon are…

A: 1 mole of any substance contains 6.022 × 1023 particles.  This means same no of moles of any…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".