C. Calculate the number of atoms or molecules in each of the following samples.19) 0.357 moles of potassium0.357 moles potassium X20) 2.93 moles of Ca21) 473 moles of CuSO46.022 x 10² 3 atmos potassiumI mole potassium2.93 moles Ca x 6.022 +1023Imole ca2.15x1023 aton k473 moles CuSO4 x23) A 0.251-g Ti metal heart valve22) An 85.5-g sample of Hg in a barometer24) A 10.0-g sample of N₂O gasators Ca6.022 x 1023=11-76x1024 atom CarCusoyCuSO42.85x1026mole CusoyI mole

Note: Since first three parts are already solved in the image, so I am solving 22,23, and 24.22) The…

C. Calculate the number of atoms or molecules in each of the following samples. 19) 0.357 moles of potassium potassium 0.357 moles potassium x 6.022 x 10²3 = 21) 473 moles of CuSO4 I mole potassium 2.15x1023 atom k 20) 2.93 moles of Ca 2.93 moles Ca x 6.022 x 1023 atorns (a Imole ca 473 moles CuSO4 X с 11.76x1024 atom Co Cusoy I mole CuSO4 6.027 x 1023 X

C. Calculate the number of atoms or molecules in each of the following samples. 19) 0.357 moles of potassium potassium 0.357 moles potassium x 6.022 x 10²3 = 21) 473 moles of CuSO4 I mole potassium 2.15x1023 atom k 20) 2.93 moles of Ca 2.93 moles Ca x 6.022 x 1023 atorns (a Imole ca 473 moles CuSO4 X с 11.76x1024 atom Co Cusoy I mole CuSO4 6.027 x 1023 X

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: 15. How many O atoms are in 2.00 g Al₂O3 ? Al = 26.98 g/mole, O = 16.00 g/ mole 3.54 x10exp22 O…

Q: 1) a chemical mole A-is a kind of material B-is a large molecule C-contains an undetermined number…

A: Mole concept: Avogadro's number = 6.022 × 1023 1 mol of any substance contain 6.022 × 1023 molecules…

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

Q: Complete the table. Element Moles Mass Cr 0.00442 Fe 73.5 mg Ti 1.009 x 10-3 Hg 1.78 kg

A: Mole is represented by the symbol mol. It is unit of measurement of substance. Mass is defined as…

Q: A compound consisting of B, N, and H undergoes elemental analysis. The % composition by mass is…

A: Given,Percent of B in the compound = 40.28 %Percent of N in the compound = 52.20 %Percent of H in…

Q: Suppose you have two samples that are equal in weight, 24.824.8 g VV and 24.824.8 g Cr2O3Cr2O3.…

A: Given, Mass of V = 24.8g. Mass of Cr2O3 = 24.8g.

Q: B. Given the following reaction: A + 3B --> 2C Calculate the number of moles of A. Molecule (8) sseu…

Q: Calculate the percent by mass of each element in the following compounds. 1). Ag2S 2). NaHSO3 3).…

A: 1) The compound given is Ag2S. Assuming 1 mole of compound Ag2S. Molar mass of Ag2S = Atomic mass of…

Q: Lab 5. Counting Molecules 1. Fill in the table C12H22011 NH,CI Mass (g) 1.0015 1.0238 Molar Mass…

Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

Q: 19 How many moles are there in 2.00×10 Molecules of C Cly?

Q: 2. Calculate the number of molecules of water in a 500.0-mL glass of water. (Note: assume density of…

A: • As per bartleby guidelines, I need to solve only first question in case of multiple questions…

Q: How many atoms are in 2.50 moles of SiO₂? 5.02 x 10²3 atoms 7.53 x 1023 atoms 3.01 x 10²4 atoms 1.52…

A: Given -> Moles of SiO2 = 2.50 mole

Q: Calculate the mass% of Ba in Ba(OH)2. Ba = 137.3 g/mole, O = 16.00 g/mole, H = 1.008 g/mole…

Q: 8.3.01 x 1023 CH₂O molecules moles CH₁₂0 9. 1.00 x 1025 Na atoms moles No

A: Here, we have to find the number of moles of C6H12O6 in 3.01×1023 C6H12O6 molecules and the number…

Q: 7. How many particles are present in 0.24 moles of carbon? 5.8 · 1023 particles 2.5 · 1024 particles

A: Mole is the unit of measurement of substances which may be atoms, molecules, ions, or electrons.

Q: Calculate the number of moles for each of the questions below. Use the space on the right to show…

Q: B. Calculate the number of moles contained in each of the following samples. 13) 1.06 x 1025 atoms…

A: Since you have posted a question with sub-parts , we are entitled to answer the first three…

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: A compound is found to be 43.58% P and 56.42% O by mass. Determine the empirical formula.

A: Given ,percentage composition P =43.58% O=56.42% WE HAVE TO DETERMINE THE EMPIRICAL FORMULA.

Q: How many moles (of molecules or formula units) are in each sample? Express your answer in moles to…

A: Given A) 29.2 g NO2 B) 1.35 kg CO2 C) 45.9 g KNO3 D) 164.5 kg Na2SO4 moles (of molecules or formula…

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

Q: 1. How many moles is 8.1 x 10^24 molecules of HCN? SHOW YOUR WORK!

A: Number of molecule given = 8.1 × 10^24molecule

Q: Convert 6.00 moles of calcium to atoms. O 8.50x1024 atoms O 1.56x1023 atoms O 3.61x1024 atoms…

Q: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

Q: Complete the table below for calculating the molar mass of the compound sulfur trioxide. S O Molar…

Q: 25. How many particles are present in 8.0 moles of silver? 1.6 · 1024 particles 3.0 · 1023 particles…

A: Given: The number of moles of silver is 8.0 mol. The number of particles present in the "n" number…

Q: 3. Calculate the percent by mass of the second element in the properly written formula. Example, for…

A: We need to find the percentage by mass of the second element in the properly written formula of the…

Q: Question 11 How many moles of carbon are present in 1.37 x 10 25 atoms of carbon? O 8.25 moles O…

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: How many grams of sodium bicarbonate are in 4.5 moles of sodium bicarbonate (84.007 g/mole)? O 189.0…

A: Moles = mass/Molar mass

Q: Molar Masses A = 17.813- mole D = 41.486- mole E = 33.011- mole Y = 19.280 X = 255.691 mole Z =…

A: Given that - Molar masses of elements are - A = 17.813 g/mole D = 41.486 g/mole E = 33.011 g/mole…

Q: 14 of 25 Convert the quantities. 3.27 x 1027 P,O0 molecules = 4.58 x1028 atoms 6.586 x 1020 formula…

Q: Substanc Molar Mass (g/mol) e 14.01 16.00 Al 26.98 Fe 55.85 FesNz -195.57 AIN 40.99 Directions: Use…

A: No of moles is Mass of substance divided by its Molar mass

Q: BaCl2 + 2AgNO3->2AgCl + Ba(NO3)2 How many moles of silver chloride are produced from 4.56 moles…

A: Given reaction is, BaCl2 + 2AgNO3----->2AgCl + Ba(NO3)2 Moles of barium chloride- 4.56 mol

Q: chemist will use a sample of 30 g of ethanol (CH3CH2OH) in an experiment. In one to two sentences,…

Concept explainers

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.

Question

C. Calculate the number of atoms or molecules in each of the following samples.
19) 0.357 moles of potassium
0.357 moles potassium X
20) 2.93 moles of Ca
21) 473 moles of CuSO4
6.022 x 10² 3 atmos potassium
I mole potassium
2.93 moles Ca x 6.022 +1023
Imole ca
2.15x1023 aton k
473 moles CuSO4 x
23) A 0.251-g Ti metal heart valve
22) An 85.5-g sample of Hg in a barometer
24) A 10.0-g sample of N₂O gas
ators Ca
6.022 x 1023
=
11-76x1024 atom Car
Cusoy
CuSO4
2.85x1026mole Cusoy
I mole

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given information:

VIEW

Step 2: Calculating the number of atoms in the given sample of Hg:

VIEW

Step 3: Calculating the number of atoms in the given sample of Ti:

VIEW

Step 4: Calculating the number of molecules in the given sample of nitrous oxide gas:

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 37 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

1. Calculate the percent composition of all elements in photographic fixer solution, Na2S2O3 1) % Na 2) % S 3) % O 2. Determine the number of molecules of compound: 25.0 g of propylene, C3H6
5) _NH3 + 02> _NO + H20 0.3359 mol of ammonia will make how many grams of nitrogen monoxide?
mass Zn - x hort Find mass of Zn (65.4g2n) mole Zn X=9.495 * 10-3 OffS
Complete the table below for calculating the molar mass of the compound phosphorus triiodide. Molar mass of element Mass in one mole of phosphorus triiodide Moles g/mol mol %3D g g/mol x mol %3D Molar mass phosphorus triiodide = g/mol
Need help with percent composition calculation and empirical formula
a. Determine the empirical formula of a compound with 63.12% Carbon, 8.85% Hydrogen, and 28.03% Oxygen. b. Determine the molecular formula if its molar mass is 228.32g/mole?
A sample that contains only CuCO3 and NICO3 weighs 0.7631 g. When it is dissolved in excess acid, 0.2765 g of carbon dioxide is liberated. What percentage of CUCO3 did the sample contain? Assume all the carbon originally present is converted to carbon dioxide. Mass percent CUCO3 = %
A. Calculate the molar mass of each substance. 1. NaCl 2. O2 3. О 4. C6H12O6 5. (NHA)3PO4 6. Ag
4. One mole of CO, (9) molecules contains 6.02 x 10ª CO2 9) molecules. a. true b. false 5. Which of the following samples contains the same number of atoms as 40.00 g of Ne a. 4.00 g of He b. 24.00 g of Mg. c. 40.00 g of C () d. 80.00 g of Ar a 6. When 75 mL of 0.15-mol/L HCI is diluted with distilled water to a final volume of 150 mL, the concentration of HCI is reduced to a. 0.12 mol/L b. 0.10 mol/L c. 0.050 mol/L d. 0.075 mol/L What mass of copper is consumed when 15.0 g of nitric oxide, NO g, is produced according to the following balanced equation? 7. 3 Cu p + 8 HNO, (a9) → 3 Cu(NO,).(ag) + 4 H,O, + 2 NO ) a. 15.0 g b. 22.5 g c. 47.6 g d. 192 g 8. For a neutral solution, which of the following statements is true? a. The concentration of hydrogen ions, [H'], equals 1 x 10* mol/L. b. The pH of a neutral solution is 7.0. c. The concentration of hydrogen ions, [H°], equals the concentration of hydroxide ions, (OH]. d. all of the above 9. A titration is a lab procedure that involves…
D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 238 male lead X (207.2g) I moi 26) 1.54 x 10-⁹ moles of Zn 1.54 x 10-a mol 2n x 27) 7.70 x 109 moles of Mg(NO3)2 7.70 x 10-2 mol x 28) 8.42 x 1027 atoms of tin 29) 6.39 x 10¹8 atoms of sulfur = 4.93 x 10 49 30) 5.99 x 1030 molecules of SiO₂ (65.389) (148.30) 1.01 x10-79 1.14 x 10-6 g
3. Elements B and N form a binary compound BNy When 12 grams of this compound was made from its elements, it consumed 7 grams of elemental nitrogen. A) Find the empirical formula of the compound: The mass of N atoms in the 12 g sample of the compound is g The number of moles of N atoms in the 12 g sample of the compound is mol The mass ofB atoms in the 12 g sample of the compound is g The number of moles of B atoms in the 12 g sample of the compound is mol The empirical formula is: B) Given the molar mass of the compound is 74.46 g/mol, find its chemical formula: Name the compound:
39