Molar MassRepresentativeParticleMassNumber ofSubstanceNumber of moles(gimol)(9)ParticlesCarbon dioxide (CO2)44.01molecule2.51.505 x10Gold (Au)atom197.0016.02 x10Glucose (C:H»Os)180.18molecule360.361.25x102Calcium Fluonde (CafFa)78.08formula unit234 243Nitrogen gas (Na)28.02mloecule140.103.010 x10

Answered: Image /qna-images/answer/baa69054-504d-48ef-bbac-eca70231f88c.jpg

Answered: Molar Mass Number of Representative…

Science

Chemistry

Molar Mass Number of Representative Particle Mass Substance Number of moles (g/mol) (9) Particles

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 10CR

See similar textbooks

Similar questions

1. One of the first families of rockets used by the American space program was the Redstonefamily of rockets. The first Redstone rockets (in the 1950s) used B10H14 (often called decaborane)as a rocket fuel that reacts violently with liquid di-oxygen to make diboron trioxide and steam.When used as a rocket fuel, scientists carefully calculated the amount necessary so that bothcomponents ran out at the same time. (Excess fuel would be excess weight for the rocket tocarry.) If the total mass of both reactants put together is 12.0  104 kg, what was the volume ofliquid di-oxygen carried by the rockets? (Liquid di-oxygen has a density of 1.141 g/mL.)
Report sheet analysis of KCIO3/KCI Unknown substance 1 Mass of empty 400mL beaker 164.93g, Mass of 30mL beaker+test tube 96.181g, Mass of 30mL beaker+test tube+unkown mixture 97.218g, Mass of unkown substance 1 1.037g, Mass of 400mL beaker and water 304.97g, Temperature of O2 20 celsius, Atmospheric pressure 750.1 torr. Mass of water ___, Volume of O2___, Vapor pressure of water ___torr, Partial pressure of O2 (Po2) ___torr, Partial pressure of O2 (Po2) ___atm, Moles of O2 (no2) ___, Moles of KCIO3 in unkown ___, Grams of KCIO3 in known ___, % by mass KCIO3 in unknown ___.
Magnesium +Acetic Acid --> C2HG5+ O2 ---> Iron (III) carbonate -->
In a 15-cm. evaporating dish is placed 15.4 g. (0.10 mole) of finely powdered biphenyl (Note 1). The dish is set on a porcelain rack in a 30-cm. desiccator with a 10-cm. evaporating dish under the rack containing 39 g. (12 ml., 0.24 mole) of bromine. The desiccator is closed, but a very small opening is provided for the escape of hydrogen bromide (Note 2). The biphenyl is left in contact with the bromine vapor for 8 hours (or overnight). The orange solid is then removed from the desiccator and allowed to stand in the air under a hood for at least 4 hours (Note 3). At this point, the product weighs about 30 g. and has a melting point in the neighborhood of 152°. The crude 4,4'-dibromobiphenyl is dissolved in 75 ml. of benzene, filtered, and cooled to 15°. The resulting crystals are filtered, giving a yield of 23.4– 24.0 g. (75–77%) of 4,4'-dibromobiphenyl, m.p. 162–163° (Note 4). How large of a scale can this reaction be run safely? Is it expensive?
When 25 g of ethanol (MW 46.07 g/mol) is mixed with 25 g of water (MW 18.02 g/mol) at 25 C, the total volume of the ethanol/water solution is 50 mL. Given that the partial molar volume of water in the solution is 17.4 mL / m ol, what is the partial molar volume of the ethanol?
Produce Water mass “X” is known to be a mixture of water masses “1”, “2”, and “3”. Using the data plotted below, calculate the composition of “X” (i.e. determine the fraction from each of the 3 water masses that makes up water mass X). Watermass#1– SF6 =25 S=33.5 Watermass#2– SF6 =75 S=32 Watermass#3– SF6 =50 S=36.5 Water mass X – SF6 =60 S= 34
In an experiment, 0.500 grams of sodium bicarbonate were added to an evaporating dish and an excess of 6.0 M hydrochloric acid was added. The bicarbonate bubbled with the addition of the aqueous HCl. The evaporating dish was gently swirled until the bubbling stopped. The evaporating dish was placed on a hot plate and heated carefully to dryness so that it was completely dry and at constant mass. The amount of sodium chloride obtained from the evaporating dish was 0.114 g. The reaction is given below. NaHCO3 (s) + HCl (aq) ---> NaCl (s) + CO2 (g) + H2O (l) Question: Is the reaction balanced?
In an experiment, 0.500 grams of sodium bicarbonate were added to an evaporating dish and an excess of 6.0 M hydrochloric acid was added. The bicarbonate bubbled with the addition of the aqueous HCl. The evaporating dish was gently swirled until the bubbling stopped. The evaporating dish was placed on a hot plate and heated carefully to dryness so that it was completely dry and at constant mass. The amount of sodium chloride obtained from the evaporating dish was 0.114 g. The reaction is given below. NaHCO3 (s) + HCl (aq) ---> NaCl (s) + CO2 (g) + H2O (l) Is the reaction balanced? What was in the bubbles? What were the actual, theoretical, and percent yields of sodium chloride (NaCl)? You must show your work to receive credit.
In an experiment, 0.500 grams of sodium bicarbonate were added to an evaporating dish and an excess of 6.0 M hydrochloric acid was added. The bicarbonate bubbled with the addition of the aqueous HCl. The evaporating dish was gently swirled until the bubbling stopped. The evaporating dish was placed on a hot plate and heated carefully to dryness so that it was completely dry and at constant mass. The amount of sodium chloride obtained from the evaporating dish was 0.114 g. The reaction is given below. NaHCO3 (s) + HCl (aq) ---> NaCl (s) + CO2 (g) + H2O (l) What were the actual, theoretical, and percent yields of sodium chloride (NaCl)?
In an experiment, 0.500 grams of sodium bicarbonate were added to an evaporating dish and an excess of 6.0 M hydrochloric acid was added. The bicarbonate bubbled with the addition of the aqueous HCl. The evaporating dish was gently swirled until the bubbling stopped. The evaporating dish was placed on a hot plate and heated carefully to dryness so that it was completely dry and at constant mass. The amount of sodium chloride obtained from the evaporating dish was 0.114 g. The reaction is given below. NaHCO3 (s) + HCl (aq) ---> NaCl (s) + CO2 (g) + H2O (l) Question: What were the actual, theoretical, and percent yields of sodium chloride (NaCl)?
A mixture of methanol and water contains 60.0% water by mass. Assuming volume additivity: If the actual specific gravity of the mixture is 0.9345: How many liters is required to provide 150 mol of methanol?
what is the correct volume of 2.5M PhMgBr in THF is needed to completely react with 1.5ml of methyl benzoate?you do not need to consider and excess and should calculate (and choose) the minimum amount as required by the reaction stoichiometry Enter your answer to one decimal place with the proper unit of measurement.