QUESTION 6 What is the mass of 5 atom(s) of copper in grams? Oa. 1.9 × 1021 10-22 g O C. 7.65 × 10-24 O d. 6.022 × O b. 5.28 × 10 g 1023 O e. 317.8 g Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Q: A chemist measures the amount of oxygen gas produced during an experiment. He finds that 6.63 g of…

A:

Q: QUESTION 7 One mole of particles of any substance contains how many particles? 3 x 10-10 particles 3…

A: 7) The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12.

Q: 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

A: 1 mol of ZnCl2 contains 1 mol of Zn atom is present The molecular weight of ZnCl2  = (65.4 +2 x 35.5…

Q: Calculate the percent by mass of each element in the following compounds to one decimal place. a.…

A: The Answers to both the questions are given as:

Q: a. What is the mass of 1.49 x 1024 atoms of chlorine? grams b. What is the mass of 9.12 x 1023…

A: a) mass of 1.49×1024 atoms of chlorine.

Q: represents tne A 27.29 g 6.41 g 27.29% C 17.09 g 72.71 g O2 72.71% 100% CO2 100.0 g CO2 23.5 g CO, |…

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Q: part 1) Iron pyrite, often called "fool’s gold," has the formula FeS2 . If you could convert 33.2 kg…

A:

Q: One mole of copper(II) sulfate, CuSO4, contains. 2.41 x 1023 2.41 x 1024 6.02 x 1023 1.51 x 1023 04…

A: Molecular formula of Copper (II) sulfate is CuSO4 From the formula, it is clear that 1 formula unit…

Q: QUESTION 10 An oxide of iron has the formula Fe 30 4. What mass percent of iron does it contain? O…

A: Formula of the compound is Fe3O4. Molar mass of Fe3O4 = 231.53g/mol

Q: QUESTION 6 Please answer the questions below completely. Show ALL work for credit. Give all answers…

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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: (2) How many molecules are in 30.1 g of sulfur dioxide? a. 1.81 x 1025 b. 2.83 x 1023 c. 6.02 x 1023…

A: Given , (a) Sulphur Dioxide (b) Ammonia

Q: 1. A sample of CaCl2 with a mass of 34.5 g was treated in such a way that all of its calcium was…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: The number of ammonia (NH3) molecules present in 4.85 grams of NH3is: a.1.02 x 10^25 c. 1.72 x…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: The formula for carbon monoxide is CO. a. How many molecules are in 3.35 grams of carbon monoxide?…

A: Given:The formula of carbon monoxide is COMass of CO = 3.35 gWe have to determine:(a) The number of…

Q: What is the amount of Ne in moles in a 355 gram sample of Ne? (Molar mass of neon = 20.18 g/mol)…

A: Given   mass of Ne            = 355 gram  Molar mass of Ne  = 20.18 gram/mole  Number of mole of Ne…

Q: Find the mass of 1 molecule of Li H in gram. a. 7.949 b. 1.32 x1023 С. 4 d. 1.32 x10-23

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Q: the amount o

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: I. Find the amount of all the elements (in grams) in a. 8.75 g of B,O, b. 167.2 g of Na B,O,*10H̟O.…

A: a)        8.75 g of B2O3                     Molar mass of B2O3 = 11×2+16×3 g = 70g…

Q: When working in the lab, I take the mass of a sample of ammonium (NH3) and I find it to have a mass…

A: The mass of ammonia is = 45.74 g The mass of nitrogen is =? The mass of hydrogen is =?

Q: 17

A: Given: 29 chunks of iron, 15 chunks of silver, 17 chunks of platinum

Q: 14.255 g of a compound with the molecular formula C5H4N4 contains ______ carbon atoms. Report your…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: -23 An oxygen atom has a mass of 2.66 × 10 g and a glass of water has a mass of 0.050 kg. Use this…

A: Given mass of an oxygen atom = 2.66 × 10–23 g  And, mas of the glass water = 0.050 kg

Q: 3.7 x 1021 water molecules has a mass of _____ grams. Keep four decimal places A drop of water has…

A: Consider some important relations is as follows; 1 mol = 6.022×1023 molecules…

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: Calculate the mass (in g) of oxygen in a 76.9 g sample of Ni(BrO4)2 (MM = 346). Report your answer…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: What is the mass of 1.91 x 10^23 atoms of nitrogen? ____ grams What is the mass of 3.91 x 10^23…

A: Since moles of any atom = number of atoms / Avogadro's number And moles of any molecules = number of…

Q: Br Br 1. Mg Et₂0 1. Mg Et₂O 1. Mg Et₂0 2. 3. H3O+ 2. 3. H3O+ Дон 2. H 3. H3O+ CH3 /Et₂0 0/E1₂0 Et₂0

A: Grignard reagents add to carbonyl compounds to give primary, secondary, and tertiary alcohols

Q: An analytical chemist measures the amount of Elements E, and E₂ in four samples of an unknown…

A: Since the unknown substance, X contains elements E1 and E2, it can be either a compound of E1 and…

Q: Find the mass of 1 molecule of Li H in gram. O a. 4 O b. 7.949 O c. 1.32 x1023 O d. 1.32 x10-23

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Q: A mixture of 151.7 g of P and 156.7 g of O, reacts completely to form P,O, and P.O10: Find the…

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Q: 9. Calculate the number of molecules present in 4.29 g of nitrogen dioxide (NO2). Danie192.1 10.…

A: 9. Given data: The mass of nitrogen dioxide is 4.29 g. To find the number of molecules present in…

Q: What is the mass of NaCl in a 1 L bottle of 2.00 M NaCl? a. 29.3 g b. 58.0 g c. 116 g d. 234 g

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Q: An analytical chemist measures the amount of Elements E, and E₂ in four samples of an unknown…

A:

Q: Which has the greater number of particles, 3.011x1023 N2 molecules or 14.01 g N2 molecules? a.…

A:

Q: Percent by mass of hydrogen in ammonia, NH3, is 17.77 %.  Which of the following is the grams of…

A: Gram of hydrogen = percentage of hydrogen × mass of ammonia.

Q: [Review Topics] a. Merchants usually sell small nuts, washers, and bolts by weight (like jelly…

A: Given that, the average weights of a washer is 0.110 g. We have to calculate The weight of the 78…

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.