Determination of the amount of water, mass of crucible + dehydrated sample 16.2265g, mass of dehydrated Sample is 1.3031g, mass of water is 0.3587g, moles of water is 0.01991moles,DETERMINATION of the amount of copper, mass of copper 0.6291g, moles of copper 9.900 × 10 to the negative 3 moles, Determination of the amount of chlorine, calculate mass of copper + water.

Determination of the amount of water, mass of crucible + dehydrated sample 16.2265g, mass of dehydrated Sample is 1.3031g, mass of water is 0.3587g, moles of water is 0.01991moles,DETERMINATION of the amount of copper, mass of copper 0.6291g, moles of copper 9.900 × 10 to the negative 3 moles, Determination of the amount of chlorine, calculate mass of copper + water.

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.6PAE: Use the web to determine the differences in the amounts of aluminum recycled in states where there...

See similar textbooks

Similar questions

Suppose that you are closing a cabin in the north woods for the winter and you do not want the water in the toilet tank to freeze. You know that the temperature might get as low as 30. C, and you want to protect about 4.0 L water in the toilet tank from freezing. Calculate the volume of ethylene glycol (density = 1.113 g/mL; molar mass = 62.1 g/mol) you should add to the 4.0 L water.
In biological systems, enzymes are used to accelerate the rates of certain biological reactions. Glucoamylase is an enzyme that aids in the conversion of starch to glucose (a sugar that cells use for energy). Experiments show that 1 μg mol of glucoamylase in a 4% starch solution results in a production rate of glucose of 0.6 μg mol/(mL)(min). Determine the production rate of glucose for this system in units of lb mol/(ft3)(day). A. 0.0015 lb mol/(ft3)(day) B. 0.0315 lb mol/(ft3)(day) C. 0.0539 lb mol/(ft3)(day) D. 0.3569 lb mol/(ft3)(day)
Precipitation from a supersaturated sodium acetate solution. The solution on the left was formed by dissolving 141 g of the salt in 100 mL of water at 100 ∘C and the slowly cooling it to 20∘C.Because the solubility of sodium acetate in water at 20 ∘C is 46 gg per 100 mL of water, the solution is supersaturated. Addition of a sodium acetate crystal causes the excess solute to crystallize from solution. How many grams of sodium acetate are in solution in the third beaker? Express your answer as an integer.
Calculate the percent composition of sand in the mixture using the mass of the recovered sandCalculate the theoretical mass of salt in the mixtue using the mass of the recovered sandCalculate the theoretial percent composition of salt in the mixtureCalculate the percent error for the recovered saltCalculate the total mass of the recovered solids Weight of mixture: 1.841Weight of salt: 1.319Weight of sand: 0.376Weight of sand after heating: 0.376
The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O: 4 NH3 (g) + 7 O2 (g) → 4 NO2 (g) + 6 H2O (g) The combustion of 161 g of ammonia consumes __________ g of oxygen. atomic weights: N = 14.01, H = 1.01, O = 15.99. Input values only with two decimal places. Do not include the units.
the world's total petroleum reserve is estimated at 2.0x10^22 joules. At the present rate of 1.8x10^20 J/yr, how long will it take to exhuast the supply? Use factor labeling
Obtain values from the pictures found in the procedure to complete the data table below.Remember to include units!A. Data:1 Mass empty beaker2 Mass beaker + Na2CO33 Mass Na2CO3 used4 Mass graduated cylinder + HCl(aq)5 Mass empty graduated cylinder6 Mass HCl(aq) used7 Total mass before rxn: beaker + Na2CO3 + HCl(aq)8 Mass beaker + salt solution after reaction9 Mass of CO2 generated by the reaction10 Mass of beaker + NaCl (after drying)11 Mass of NaCl Generated
A student dissolves 13.7 g of potassium hydroxide KOH in 200. g of water in a well-insulated open cup. He then observes the temperature of the water rise from 22.0°C to 34.0°C over the course of 7.3 minutes. KOHs + K+aq -> OH−aq You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy ΔHrxn per mole of KOH .
As part of the aspirin synthesis lab the orgo students also had to perform the following calculation to demonstrate their knowledge. Are you able to help them work this out? Saponification is a process in which soap is produced from the chemical reaction between animal fat (triglycerides) and a strong base such as KOH. An example of such balanced chemical reaction is shown here: C51H98O6 + 3KOH → C3H5(OH)3 + 3C16H31O2K (Triglyceride) (Soap) if during the saponification reaction 231.5 g of C51H98O6 is mixed with 231.5 g of KOH and 160 g of soap is produced. Calculate the theoretical yield of soap C16H31O2K and indicate who is the limiting reactant. (Provide your answer to 2 decimal places) Calculate the percent yield for this reaction (Provide your answer to 1 decimal place) *Show ALL steps and mathematical equations involved in your calculations to help the orgo students. Remember to label all…
A student measured qrxn for the reaction of 0.492 g of a metal, X(s)(molar mass = 81.72), with HCl(aq) to be -874 J. Assuming this metal reacts in the same manner as magnesium, what is the ΔH°f (in kJ/mol) for this metal's cation in solution, i.e., X2+(aq)? Report your answer to the correct number of significant figures and only include the numerical answer
Chemistry The units for molar absorptivity are L/cm Mol Cm Mol/L Mol/L cm Unitless
What is the % difference from the accepted value?

SEE MORE QUESTIONS

Recommended textbooks for you

Chemistry for Engineering Students

Chemistry

ISBN:

9781285199023

Author:

Lawrence S. Brown, Tom Holme

Publisher:

Cengage Learning

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

General Chemistry - Standalone book (MindTap Cour…

Chemistry

ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning

Chemistry for Engineering Students

Chemistry

ISBN:

9781285199023

Author:

Lawrence S. Brown, Tom Holme

Publisher:

Cengage Learning

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

General Chemistry - Standalone book (MindTap Cour…

Chemistry

ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS