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

Q: What percent of Potassium Sulfate Hexahydrate is the Potassium? o 11.34% o 56.73% 4.25% 27.65%

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Q: A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 g H and…

A: This question is related to stoichiometry. Percentage composition telle us about the percentage of…

Q: What mass of cerussite, PbCO3, would contain 35.0 grams of lead? (a) 51.7 g (b) 42.4 g (c) 35.6 g…

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Q: How many grams of carbon are present in 67.9g of C3H3? Atomic weights: C = 12 H= 1 55.6g 25.5g 22.6g…

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Q: What is the mass of a 12.56L sample of carbon dioxide? O A. 17.9 g о В. 8.9 g O C. 4501 g O D. 24.7…

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Q: Given a 240.0 g sample of sulfur trioxide, how many grams of oxygen are produced, assuming the…

A: Number of moles of SO3 = mass / molar mass Number of moles of SO3 = 240 g / 80.066 g / mol = 2.99…

Q: please help me, double and triple check your answers, previous tutors got it wrong so check it.

A: Calculation for moles of Ne: Calculation for moles of Kr: Calculation for moles of Ar:

Q: NaIO3 + 3 NaHSO3  → I-  + 3 SO42-  + 3 H+ + 4 Na+             5 I-  + NaIO3  + 6 H+  → 3 I2(s) + 3…

A: The two reactions given are, 1) NaIO3 + 3 NaHSO3  → I-  + 3 SO42-  + 3 H+ + 4 Na+  2) 5 I-  + NaIO3…

Q: 2 N2O5 4 NO + 3 O2 Suppose that 3.23 g of O2 are obtained. How many grams of nitrogen monoxide, NO,…

A: In  this question, given equation  2N2O5  → 4NO+3O2Given data weight of O2=3.23 g molar mass of O2=…

Q: Calculate the grams of nitrogen in 23.4 g of Ca(NO3)2.  2. Calculate the mass percent of chlorine…

A: The given data : 1.The mass of the Ca(NO3)2 = 23.4 g To determine = The mass of nitrogen 2.…

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: What is the mass of 4.50 x 1022 cu atoms? Multiple Choice O 747 x 102 amu O 747 x 1029 4.75 g

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Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 747 x 102 amu O 747 x 1029 O 475 g O…

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Q: A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 g H and…

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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: Magnesium sulfate (M9SO.) O a. 1 O b. 2 О с. 3 O d. 4

A: Magnesium sulfate is an ionic compound. An ionic compound is made of cation and an anion. Here,…

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: Calculate the mass percent of 2.50 moles of NaOH in 0.900L of water at 25 °C. (The density of water…

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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) →…

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Q: What mass of sulfur dioxide, SO2, would contain the same mass of oxygen as is contained in 33.7g of…

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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: 10.6 g of anhydrous sodium carbonate combines with 18g of water to form hydrated sodium carbonate…

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Q: A sample containing NaCl, Na,SO, and NaNO, gives the following elemental analysis: Na: 33.807…

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Q: Which chemical equation represents a O Caco:(s) –→ Ca0(s) + CO:(g) CaO(s) + CO:(g) O Ca0(s) +…

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Q: What is the mass of 0.5 mole of nitrogen gas? O 1.20 x 1023 O 28.0 g O 14.0 g O 6.02 x 1023 3.01 x…

A: The mass of one mole of the substance is called molar mass. Therefore, the mass of any substance is…

Q: How much zinc oxide powder should you add to 2 oz (AV) of 5% zinc oxide (Zno) ointment to make a 10%…

A: We will calculate amount of ZnO in 5% ointment , then calculate amount of ZnO added to it to make it…

Q: A certain compound X is composed of 70.53% carbon, 13.02% hydrogen, and the remainder is nitrogen.…

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Q: 17. A 5.0 g sample of calcium nitrate (Ca(NO3)2, M=164) contaminated with silica (SiO2, M=60.1) is…

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Q: A sample of trifluoroacetic acid

A: Atomic mass of C = 12 amu Atomic mass of H = 1 amu Atomic mass of F = 19 amu Atomic mass of O = 16…

Q: How many grams of magnesium are required to produce 3.000 kg of Si? (At mass: Mg=24.31; Si=28.09)…

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Q: Balance the following equations AND write in words what each equation means. CH4 + 02 CO2 + H20 Na +…

A: Since you have posted multiple questions, and have not specified which question you want us to…

Q: 70 ml of 0.3 normali (sulfuric acid) was taken to prepare 60 ml of sulfuric acid solution. What is…

A: Introduction: For the preparation of dilute solution from a stock solution, we can use the following…

Q: Determine the volume of a carbon sample that contains 2.40 x 1024 atoms and a density of 0.968g/cm3

A: We have given that  No.of atom of carbon = 2.40 × 1024 atom  Density of sample = 0.968g/cm3  Find…

Q: Question attached

A: Given: Mass of calcium present in Calcium chloride is 20 g

Q: What is the mass, in grams, of 6.52 moles of hydrogen gas? Select one: a. 3.93e24 g b. 13.1 g c.…

A: The mass of hydrogen gas is calculated as shown below where n is the number of moles and M is the…

Q: Pill 1 Pill 2 Mass percent of FESO4 7 H,O (%) Average mass percent of FESO, 7 H2O (%) 6. unrounded…

A: Mass percent of a substance can be calculated as follows; Mass percent=Mass of substanceTotal…

Q: A sample of trifluoroacetic acid, C2HF3O2, contains 33.733.7 g of oxygen. Calculate the mass of the…

A: Given, mass of oxygen = 33.7 g Now, one mole of C2HF3O2 contains two moles of oxygen.

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: Using the following equation: Fe:O:(s) + 3H:(g) → 2Fe(s) + 3H:O(1) How many grams of iron,Fe, can be…

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Q: What is the average mass, in grams, of one Z a Mutple Choice O 1001 a 10 24. 66.39 amu 394 x 102 109…

A: No of atom is equal to mole × avagadro number

Q: A sample of trifluoroacetic acid, C2HF3O2, contains 60.9 g of oxygen. Calculate the mass of the…

A: Sample of trifluoroacetic acid molecular weight                          = (12× 2+ 1+ 3×19+ 16×2) g…

Q: What is the mass of 3.75 moles of Silver? O a. 327.5 g O b. 168.64g O c. 405 g O d. 520.9 g

A: given  number of moles =3.75

Q: 2H2 (g) + O2 (g) 2H20 (g) C(graphite) + CO{g) =2 CO(g) CO2(g) + H2(g) = CO(g) + H2O(g) Ke Ke = 0.64…

A: Kp =kc * (C0RT/P0)delta n Co is the equilibrium concentration, po= equilibrium pressure. Delta n=…

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 amount of Na+ (mm: 23 g/mol) in grams that is found in 2.92 g of N23PO4 (mm: 163.94…

A: Given Data :  1. Mass of Na3PO4 = 2.92 g  2. Molar mass of Na+ = 23 g/mol  3. Molar Mass of Na3PO4 =…

Q: Determine the number of grams of oxygen that are in 45.0 g of penicillin (C16H18N2O4S, MW=334.4). O…

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Q: a) 2Na(s) + Cl2(g) →2 Nacl(s) b) Ag(s) + % Cl2(g) → Agcl(s) c) CS2() + 3 O2(g) → CO2(g) + 2 SO2(g)…

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Q: 6. How many oxygen atoms are there in 2.5 g of oxygen gas? a. 2.4 x 1022 b. 4.7 x 1022 c. 9.4 x 1022…

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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.