Which of the following statements is/are correct? atoms of carbon-12 H. A mole of iodine atoms contains fewer atoms than a mole of bromine atoms m. There are 6.022 x 1023 carbon atoms in 12.0 grams of carbon-12 IN. Because both use carbon-12 as a reference, one mole of a low molecular mass substance contains more particles than one mole of a high molecular mass substance v. One mole of a substance contains 6.02 × 1023 particles of that substance a. i and iii b. i and v iii and v 20 81 с. d. ii and iv ii and v 00 1og 00.S2 ni onodi sn 00 lo 2ofom yam woll e. i. One mole of a as as 12

Q: The compound(NH4)2 S2 O3, Which element is present in the largest percent by mass? A. N B. S C. O…

A:

Q: P4010 What is its empirical 13. The molecular formula for tetraphosphorus decoxide is Formula? PO25…

A: Given, Molecular Formula = P4O10

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Q: A brass alloy contains 78.9% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

A: We have to predict the moles of Zn and atoms of Zn.

Q: 5. A sample of iron Fe weighing 14.2g contains how many moles of iron atoms? 00.254 moles O 0.0739…

A: The number of moles of any substance is the ratio of the given mass of that substance in grams to…

Q: The number of moles of S in 2.8 x 1024 atoms of S is: 1.0 mole of S atoms 4.6 moles of S atoms 3.1…

A:

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

A:

Q: Which of the following statements is not correct? A. 12.01 g of C contains 6.022 x 1023 atoms of C…

A: 1 mol of any substance contains Avogadro's number of particles (atom/ion/molecule etc.). Avogadro's…

Q: How many moles of Br are there in a sample of Br that contains 2.33×1023 atoms? _______ moles

A: Since, Number of atoms or molecules is the multiple of moles and avogadro's number. Thus,

Q: inside the front cover of this book to calculate the mass in grams of each of the following samples.…

A: Note : As per our guidelines we are supposed to answer only first 3 subparts of first question.

Q: Which sample contains the greatest number of atoms. A sample of N that contains 2.53×10 atoms or a…

A: Given,

Q: How many carbon atoms are in a pure diamond (all carbon) with a mass of 52.00 mg? A. 4.330 x 103 O…

A: Given: Mass of carbon = 52.00 mg = 52×10-3 g (since 1 g = 103 mg) Atomic mass of carbon = 12 g/mol

Q: 1. How many moles of Na are there in a sample that contains 6.16×1022 sodium atoms? moles 2. How…

A:

Q: : How many atoms of oxygen are in 3.52 moles of calcium nitrate? A. 1.91 x 10^25 atoms O B. 2.12 x…

A: E. 1.27×1025 atoms of Oxygen Given that,  Moles of Ca(NO3)2   = 3.52 mol Moles of Oxygen in 3.52 mol…

Q: 1.aDo a mole of Na and a mole of NaCl contain the same number of Na atoms ? Explain your answer .…

A: Same moles of any particle will have same number of that particles .

Q: One mole of oxygen molecule (02) contains how many atoms of oxygen? a. 6.022 × 1023 O b. 1,6021 ×…

A: We have to tell the no. Of oxygen atom in 1 mole

Q: An unknown chemical compound made of C, H, and O is found to have the following mass percent values:…

A: Empirical formula of a compound is expressed by the ratio of minimum number of atoms of each…

Q: Convert 28.50 grams of Fe (OR F e) to moles. Do not type units with your answer. The atomic weight…

A: Given : mass of Fe = 28.50 g

Q: MCQ 8: The molecular formula of different compounds shows actual numbers of A. atoms B. molecules C.…

A: Molecular formula describe the actual number and type of atom in a single molecule of a compound.

Q: What is the advantage of expressing mass in moles?

A: Expressing mass in moles offers several advantages in chemistry. It simplifies calculations,…

Q: What is the mass in grams per mole?

A: Information about the question

Q: What mass of Al contains the same mumber of atoms as 3,.0g Pb a 23 g 6.0.014 g c 3.0 g d.0.39 g e…

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Q: 12. Complete combustion of 1.550 grams of a compound produces 1.250 grams of carbon dioxide and…

A: Given data :

Q: How many iron ions are present in 43.6 g of Fe203? Select one: O a. 1.64 x 1023 ions O b. 2.63 x…

A:

Q: An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: a. How many grams of S are present in 4.88 grams of sulfur hexafluoride? Mass= g8 b. How many grams…

A: Answer:Molecular formula of sulfur hexafluoride:It means, each molecule of SF6 has 1 sulfur atom…

Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

A: Given: Mass of copper(II) sulfate pentahydrate = 78.1 kg

Q: A: Read each statement below carefully. Place a T on the line if you think a statement is TRUE.…

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

Q: 20. Which one of the following samples of substances contains the largest number of atoms? Select…

A: 1 mole = 6.022×1023 ( Avogadro's number ) Anything which is in the number of 6.022×1023  is  called…

Q: Consider a 10.1 g sample of the compound cesium phosphate. a) What is the chemical formula for…

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

Q: Determine the number of moles in the given amount of each substance. Show or explain your work. a.…

A: 1 mole of any element / compound contains 6.02 * 1023 atoms / molecules  of that substance. Mass of…

Q: In 6.9 g of aluminum, there are ______ x 1023 aluminum atoms present

A: Molecular mass of atom contains 6.023 × 10^23 atoms. Molar mass of aluminium is 26.981 g/mol

Q: A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20°C.…

A:

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Empirical formula is the simplest ratio of the elements present in the given molecular formula.…

Q: How many atoms of oxygen are in 3.52 moles of calcium nitrate?   Select one: a. 8.48 x 10^24 atoms O…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: A is asking If the carbon in the pencil weighs 1.50 grams, how many carbon atoms does the pencil…

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Q: 9. If you have 9.407 x 1023 atoms of lead, how many grams of lead (IV) phosphate can you make? 10.…

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Q: 1. How many hydrogen ions (H+) are in a mole? 2. What is the mass of one mole of H+ ions, in grams?,…

A: Introduction Always remember that 1 mole = 6.022 x 1023 atoms or molecules or ions. The correct…

Q: For each reaction given, give the reaction type (RT), predict the products and write a complete,…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How many atoms of hydrogen are present in 4.54 g of ammonia? A. 6.64 x 1019 B. 8.20 x 1024 O C. 1.61…

A: We know that , 1 mole of substance contain  = 6.022 × 1023  atoms By using this relation , we can…

Q: Which sample contains the greatest number of atoms. A sample of Li that contains 3.12×1024 atoms or…

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Q: A sample of Mg(NO3)2 has a mass of 71.5 grams. how many moles of Mg(NO3)2 are in  this sample

A: Number of moles = Mass in gram/Molar mass

Q: How many moles of atoms are in each elemental sample?

A: Given values are, No. Of atoms of Pb = 3.8×1024  atoms Standard value: Avogadro's number= 6.022×1023…

Q: Use the References to access important values if needed for this question. According to the…

A:

Q: A mixture of 197.1 g of P and 203.6 g of O, reacts completely to form P.0, and P,010. Find the…

A: Using mole  concept  easily determine how much reactant used and how much product is formed .

Q: Determine the number of atoms present in 20.0 g samples of each of the following elements? a. Be…

A:

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.