#5 4. A sign in a town gives the speed limit at 50.00 km/hr. What is this speed in cm/sec?5. Chemists have determined that 18.0 g of water consists of 6.02x1023 molecules. Assumingthat a teaspoon holds 3.70 mL of water, determine the number of molecules in 1.00teaspoon of water.1 g of water = 1 mL of waterSz\m ni bosqz6. The speed of a rocket is measured and found to be 145.3 m/sec. What is the rocket'sspeed in km/hr?7. Medicines were at one time dispensed in the apothecaries measuring system. Severalapothecaries units are listed below. Find the number of milligrams (mg) in 1.000 scruple.1 apothecaries pound = 12 ounces1 ounce = 8 dramspounds = 144 English pounds8drams Ounces175 apothecaries1000 SC 1 dram/lounce ItapM1 dram = 3 scruples1 kg = 2.205 English poundsluulen op ogeng 11eg195 apo 2.985P.

Answered: Image /qna-images/answer/b217bb33-1461-4f72-896a-a2c5f6188248.jpg

5. Chemists have determined that 18.0 g of water consists of 6.02x1023 molecules. Assuming that a teaspoon holds 3.70 mL of water, determine the number of molecules in 1.00 teaspoon of water. 1 g of water = 1 mL of water

5. Chemists have determined that 18.0 g of water consists of 6.02x1023 molecules. Assuming that a teaspoon holds 3.70 mL of water, determine the number of molecules in 1.00 teaspoon of water. 1 g of water = 1 mL of water

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter2: Chemical Compounds

Section: Chapter Questions

Problem 143QRT: The present average concentration (mass percent) of magnesium ions in seawater is 0.13%. A chemistry...

See similar textbooks

Related questions

Q: Construct the orbital diagram of the Fion. Energy 3p 3s 2p 2s 1s DOO 11 000 11 11 11 Answer Bank 1

A: Since, Electronic configuration represent the electron present in orbital in which way. Arrangement…

Q: 8. A solution is prepared by dissolving 1.23 g of 2-nitrophenol (FW 139.11) in 0.250 L (pK₂ of…

Q: ΣΗ ΣΗ ppm B

A: 1 H NMR spectrum gives an idea of number of sets of non equivalent protons and arrangement of…

Q: Which species in each pair is a better oxidizing agent under standard-state conditions: (a) Br₂ or…

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

Q: Select the correct IUPAC name for the branched chain alkane.

Q: general structure for the compound is shown below, along with the IR spectrum. of LOD TRANSMITTANCE…

Q: CI H CH3 CH3 IV H CI H₂C CI- H3C 4. CI || HH H3C H CH3 -CI 1 H 10 CH3 CH3 H CI CI V H III H H. H3C…

A: This question belong to stereo isomerism that is stereochemistry. Conversion from saw horse to…

Q: Draw the following molecules using wedge/ dash drawings when appropriate. Explain your answer A.…

A: Draw the following molecules using wedge/ dash drawings when appropriate. Explain your answer A.…

Q: You decide it is time to clean your pool since summer is quickly approaching. Your pool maintenance…

Q: NH₂ 8 A. NH2 NH₂ B. H3C CH3 CH3 C. H3C,,. ... OH CH3 H₂N. D. H₂N NH₂ NH₂

A: Chair conformation: A six-membered ring configuration in which the planes shared by atoms 2, 3, 5,…

Q: How many unhybridized P Porter orbitals are there in an sp2 hybridized C atom and in an sp2…

Q: The following data are for the gas phase decomposition of dinitrogen pentoxide at 335 K. N₂05(9)→2…

A: 1. Rate law state that rate of reaction is directly propertional to the product of molar…

Q: when 1 M KSCN is added to an aqueous solution containing iron(III) ion, a reddish-amber solution…

Q: πe=4 B E 1² & 40+2=4 4n=2 Aromatic? Z/= n 릅 こん 47=4 n=1.

Q: 4. Draw 10 constitutional isomers for the following molecule. C6H12 alken

A: Constitutional isomerism :- Molecules having the same molecular formula but different mode of…

Q: J. H₂C H =CH₂2₂ +H* H₂C H CH3 Classify reactions c, d, e, and g as to electrophilic, nucleophilic or…

A: Nucleophile is a species that get attracted toewards positive charge but itself is negatively…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

Q: 1. a. Calculate the mass of BaSO4 required to make 50.00 mL of a 0.1500 M solution. b. Calculate the…

A: Molarity is the amount of substance that is added in particular volume of solution. Molarity =…

Q: Js your the following function homogeneous 올 (x+y) annur. 21= or not? Prove

Q: Calculate the amount of Grains Per Gallon hardness (show your work) and give the appropriate water…

A: Given,187 ppm36.5 ppmRequired, The amount of Grains Per Gallon hardness and the…

Q: ZI NH₂ the neurotransmitter, serotonin

A: Partial charge will occur in the compound based on the electronegative atom. More the electro…

Q: Acyclovir (ZOVIRAX) suspension contains 40 mg of acyclovir in each mL. How many milligrams of…

A: Given, Zovirax suspension contains = 40 mg acyclovir in each mL

Q: Derive the coefficients of thermal expansion, alpha (a), and coefficient of compression, beta (B),…

A: A perfect gas means an ideal gas. The ideal gas equation is given by PV = nRT Where P is the…

Q: H₂C HC. CH₂ H3C -CH₂ H3C CH3 CH CH H3C CH₂ CH

Q: 2. An object is traveling at a speed of 7 500.0 cm/sec. What is this value in km/day? 3. Diamonds…

Q: 7. [McQuarrie 4-7] Boron (Z= 5) has five ionization energies (all in al): 1.33, 4.04, 6.08, 41.5,…

A: a) The atomic number of boron = 5. That means there are total of 5 electrons in boron atom. The…

Q: se the Solubility rules to determine if : NaCl will react with MgBr KOH will react with NaCl MgS…

A: Reaction occurs when reaction leads to produce a solid precipitate of product which have low…

Q: 5. Show the products of the reactions below (Note: show structures of actual compounds, do not use…

Q: d. e. f. g. h. НО H₂N НО H2N H ***** CI 'CI I... OH Н

A: here we will use CIP rule to give priority to atoms or group.

Q: 3. Diamonds are measured in units called a carat. One carat equals 200 mg. If a diamond is 0.600…

Q: 71 K and D) have been discovered. These new elements undergo chemical reactions like the one shown…

A: Given following unbalanced Chemical equation - T8(s) + D2(g) -----> T2D(g) Here the number of…

Q: 3A2B Reaction of the second order it = [A] 2 15 8 5 10 6 4 Compute t1/2 k / 20 10 k, and t at…

A: A question based on kinetics of reactions in solution that is to be accomplished.

Q: The oxidation of o-dianisidine (o-DIA) is electrochemically reversible and involves the transfer of…

Q: Nomenclature 2.33 All the parts of this problem refer to the alkane having the PA (a) What is the…

A: IUPAC name of the given structure can be figure out by considering IUPAC rules.

Q: At 1000 K, a sample of pure NO₂ gas decomposes: 2NO₂(g) 2NO(g) + O₂(g) The equilibrium constant Kp,…

Q: 11. Would you expect the fraction of dissociation to change in a phenol solution if a large amount…

A: To explain whether the fraction of dissociation changes in a phenol solution if a large amount of a…

Q: Draw all the constitutional isomers that fit the molecular formula C4H8Cl2 and circle the ones that…

A: CONSTITUTIONAL ISOMERS:- Compounds having same molecular formula but different structure are known…

Q: How many total moles of ions are released when the following sample dissolves completely in water?…

A: Since, Moles can be defined as mass to the molar mass of that species. Thus,

Q: 13. (a) Calculate the pressure of Xe gas using the ideal gas law and the van der Waals equation of…

A: The gases which follow the ideal gas law are called ideal gases. The gases which follow the van der…

Q: Draw structure of the following amino acids in the charged form that predominates at ph 10:…

Q: Identify points 1, 2, 3 and 4 on the following plot (isotherms for CO₂):

A: Isotherm is a line on a graph which represents changes in either volume or pressure under constant…

Q: Naphthalene has a molal freezing point constant of 6.90 ˚C/m and a normal freezing point of 80.20…

A: we have to calculate the freezing point of a solution of biphenyl and naphthalene

Q: What is the wavelength (in nm) of a photon if the energy is 7.41 x 10-19 J? (h= 6.626 x 10-34 J•s)

Q: Practice Exercises: (17.51) 45 mL of 0.0015 M Barium Chloride is mixed with 75 mL off 0.0025M…

A: To determine whether it will form precipitate or not we have to compare the ionic product and Ksp…

Q: 1A 8A 3A 4A 5A 6A 7A He BC N O F Ne 1B 2B Al Si P S C1 Ar H2A Li Be Na Mg 38 48 58 68 7B8B K Ca Sc…

Q: 5. Identify the chirality center as R- or S- HN- OH __)-pindolol beta-blocker (5-HT antagonist) N…

A: Note: According to our guidelines we are supposed to answer only first question. Kindly repost…

Q: (1) Perive the coefficients of than expansion, d, and compression, B, for в, d= perfut gas. -…

Q: Being a chemist Dave decides to carbonate his home brewed beer using dry ice. He puts 5.0 g of dry…

A: Carbon dioxide(CO2, g) is a gaseous solute and water is a liquid solvent.

Q: A solution contains a mixture of pentane and hexane at room temperature. Its vapor pressure is…

A: Answer: This question is based on Raoult's law according to which vapor pressure of system…

Q: Which statements are true about ions? Select all that apply. Cations have more electrons than…

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

100%

4. A sign in a town gives the speed limit at 50.00 km/hr. What is this speed in cm/sec?
5. Chemists have determined that 18.0 g of water consists of 6.02x1023 molecules. Assuming
that a teaspoon holds 3.70 mL of water, determine the number of molecules in 1.00
teaspoon of water.
1 g of water = 1 mL of water
Sz\m ni bosqz
6. The speed of a rocket is measured and found to be 145.3 m/sec. What is the rocket's
speed in km/hr?
7. Medicines were at one time dispensed in the apothecaries measuring system. Several
apothecaries units are listed below. Find the number of milligrams (mg) in 1.000 scruple.
1 apothecaries pound = 12 ounces
1 ounce = 8 drams
pounds = 144 English pounds
8drams Ounces
175 apothecaries
1000 SC 1 dram/lounce Itap
M
1 dram = 3 scruples
1 kg = 2.205 English pounds
luulen op og
eng 11eg
195 apo 2.985
P.

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 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

What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution of NaOH by mass? The density of the 10.0% solution is 1.109 g/mL.
A 0.755-g sample of hydrated copper(II) sulfate CuSo4xH2O was heated carefully until it had changed completely to anhydrous copper(II) sulfate (CuSO4 ) with a mass of 0.4183 g. Determine the value of x. [This number is called the number of waters of hydration of copper(II) sulfate. It specifies the number of water molecules per formula unit ofCuSO4 in the hydrated crystal.]
3.115 The average person exhales 1.0 kg of carbon dioxide in a day. Describe how you would estimate the number of CO2 molecules exhaled per breath for this average person.
3.55 An average person inhales roughly 2.5 g of O2 in a minute. How many molecules of oxygen are inhaled in (a) 1 minute, (b) 1 hour, (c) 1 day by an average person?
The space shuttle environmental control system handles excess CO2 (which the astronauts breathe out; it is 4.0% by mass of exhaled air) by reacting it with lithium hydroxide, LiOH, pellets to form lithium carbonate, Li2CO3, and water. If there are seven astronauts on board the shuttle, and each exhales 20. L of air pee minute, how long could clean air be generated if there were 25,000 g of LiOH pellets available for each shuttle mission? Assume the density of air is 0.0010 g/mL.
Many cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% H2O by mass is produced at the rate of 1000. kg/h. What mass of water must be evaporated per hour if the final product contains only 20.% water?
The present average concentration (mass percent) of magnesium ions in seawater is 0.13%. A chemistry textbook estimates that if 1.00 × 108 tons Mg were taken out of the sea each year, it would take one million years for the Mg concentration to drop to 0.12%. Do sufficient calculations to either verify or refute this statement. Assume that Earth is a sphere with a diameter of 8000 mi, 67% of which is covered by oceans to a depth of 1 mi, and that no Mg is washed back into the oceans at any time.
3.83 For the reaction of nitrogen, N2, and hydrogen, H2, to form ammonia, NH3, a student is attempting to draw a particulate diagram, as shown below. Did the student draw a correct representation of the reaction? If not, what was the error the student made?
hat do the coefficients of a balanced chemical equation tell us about the proportions in which atoms and molecules react on an individual (microscopic) basis?
Many cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% H2O by mass is produced at the rate of 1000. kg/h. What mass of water must be evaporated per hour if the final product contains only 20.% water?
4-102 Aspartame, an artificial sweetener used as a sugar substitute in some foods and beverages, has the molecular formula C14H18N2O5. (a) How many mg of aspartame are present in 3.72 × 1026 molecules of aspartame? (b) Imagine you obtain 25.0 mL of aspartame, which is known to have a density of 1.35 g/mL. How many molecules of aspartame are present in this volume? (c) How many hydrogen atoms are present in 1.00 mg of aspartame? (d) Complete the skeletal structure of aspartame, where all the bonded atoms are shown but double bonds, triple bonds, and/or lone pairs are missing. (e) Identify the various types of geometries present in each central atom of aspartame using VSEPR theory. (f) Determine the various relative bond angles associated with each central atom of aspartame using VSEPR theory. (g) What is the most polar bond in aspartame? (h) Would you predict aspartame to be polar or nonpolar? (i) Is aspartame expected to possess resonance? Explain why or why not. (j) Consider the combustion of aspartame, which results in formation of NO2(g) as well as other expected products. Write a balanced chemical equation for this reaction. (k) Calculate the weight of C02(g) that can be prepared from 1.62 g of aspartame mixed with 2.11 g of oxygen gas.
35. For each of the following solutions, the mass of solute is given, followed by the total volume of the solution prepared. Calculate the molarity of each solution. a. 3.51 g NaCl: 25 mL c. 3.51 g NaCl: 75 mL b. 3.51 g NaCl; 50. mL d. 3.51 g NaCl; l.00 L