4. Dilute hydrochloric acid is added to a 0.500 g sample of an alloy containing zinc and copper. The gas evolved is collected over water using an apparatus like the one you used in Experiment 14. The following data were obtained: 737 mm Hg barometric pressure (corrected) 23 C temperature of gas 109 mm difference in water levels inside and outside tube 79.7 mL volume of gas collected Calculate the percentage of zinc in the alloy.

Question
4. Dilute hydrochloric acid is added to a 0.500 g sample of an alloy containing
zinc and copper. The gas evolved is collected over water using an apparatus like the one
you used in Experiment 14. The following data were obtained:
Expand
Transcribed Image Text

4. Dilute hydrochloric acid is added to a 0.500 g sample of an alloy containing zinc and copper. The gas evolved is collected over water using an apparatus like the one you used in Experiment 14. The following data were obtained:

737 mm Hg
barometric pressure (corrected)
23 C
temperature of gas
109 mm
difference in water levels inside and outside tube
79.7 mL
volume of gas collected
Calculate the percentage of zinc in the alloy.
Expand
Transcribed Image Text

737 mm Hg barometric pressure (corrected) 23 C temperature of gas 109 mm difference in water levels inside and outside tube 79.7 mL volume of gas collected Calculate the percentage of zinc in the alloy.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Chemistry

Gas laws

Related Chemistry Q&A

Find answers to questions asked by students like you.

Q: The molarity of a solution prepared by dissolving 0.100 mol of Ca(NO3)2 in enough water to make 500....

A: The molarity of the solution can be calculated as,

Q: If a 50.0 gram piece of copper is heated to 100oC and then put into a vessel containing 50.0 grams o...

A: The number of moles of Cu (n1) is calculated as follows:

Q: Calculate the final temperature when 50 mL of water at 80 C are added to 25 mL of water at 25 C. Can...

A: Given:Initial Temperature of hot water = 80 oCInitial Temperature of cold water = 25 oCVolume of hot...

Q: How many hydrogen bonds can CH3NH2 make to water?

A: CH3NH2 can only have as many hydrogen bonds as hydrogen bonding sites in the molecule. CH3NH2 has tw...

Q: Problem 1

A:  The molarity of a solution is the ratio of number of moles of a substance to the volume of solution...

Q: What would be the molar concentration of a 9.10% solution of sodium hypochlorite? (Assume the densit...

A: Assuming 9.10 % by mass of sodium hypochlorite solution.It means that 9.10 grams of sodium hypochlor...

Q: During a breath, the average human lung expands about 0.50L. If this expansion occcurs against an ex...

A: Work in thermodynamics is the amount of energy that is transferred from one system to another system...

Q: [Review Topics] References) Classify the following compounds as chiral, achiral (but not meso), or m...

A: The compounds are classified as chiral, achiral, and meso compounds in step two.

Q: Solid aluminum (Al) and oxygen O2) gas react to form solid aluminum oxide (Al203). Suppose you have ...

A: Given information:Moles of Al = 1.0 molMoles of O2 = 13.0 mol

Q: Write and balance the chemical equation for the reaction between carbon monoxide, CO(g), and oxygen ...

A: Balanced chemical reaction means that the number of individual atoms is equal in the reactant side a...

Q: A quantity of 3.30 × 102 mL of 0.600 M HNO3 is mixed with 3.30 × 102 mL of 0.300 M Ba(OH)2 in a cons...

A: Given information:Concentration of HNO3 = 0.600 MVolume of HNO3 = 3.30×102 mLConcentration of Ba(OH)...

Q: Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of 6.3...

A: Given:Frequency ( ν)  = 6.32 × 1014 Hz.c = 3 X 108 m/sCalculate the wavelength(λ) (in nm) ?

Q: How would the unknowns molar mass be affected if a small piece of the foil cap was lost before the f...

A: It is very important to maintain the closed environment while dealing with volatile solvents.The bel...

Q: A balloon is blown up to a volume of 0.55 L at 71 °F. The balloon sits in a hot car, which reaches 1...

A: Given:Initial volume =  0.55 LInitial T = 71 F 0= 294.81 kFinal T = 107 F 0 = 314.81 KFinal volume =...

Q: How many atoms of C are present in 52 grams of sugar C6H12O6?

A: Click to see the answer

Q: Calculate the frequiency of the light emitted by hydrogen atoms when they undergo transitions from n...

A: The wavelength of the emitted photons is calculated as.

Q: Consider the general valence electron configuration of ns2np5 and the following statements:(i) Eleme...

A: The general valence electron configuration of ns2 np5 : Halogen groupElements with this electron con...

Q: A sealed chamber contains 7.50 g CH4 and 14.5 g O2. The mixture is ignited producing CO2 and H2O. Ho...

A: According to the balanced chemical reaction shown as follows:

Q: Each 5 mL teaspoon of "Extra Strength Maalox Plus" contains 450 mg of magnesium hydroxide and 500 mg...

A: Given information:Volume = 5 mLMass of magnesium hydroxide = 450 mgMass of aluminum hydroxide = 500 ...

Q: For octane Skeletal formula: What is the systematic name for the following structure? 7. What is the...

A: The name of the compound is 2-methylbutane.

Q: A sample of a gas at STP occupied a volume of 1.365 liters.  The gas was placed in a different vesse...

A: Given:Volume V1 = 1.365 liters.At STP, pressure P1 = 760 torr.At STP, temperature T1 = 273 K.Pressur...

Q: Gven: 10mL of Hd Dotll= mass of NaOH2.013a MHC- 1.0 OM M Naot-1.0OM NaOt(s)+HCI CaqNaulaa+H2O) Atrin...

A: The number of moles of a species is calculated by expression (1), in which, n is the number of moles...

Q: [Review Topics] [References Many elements combine with hydrogen(valence 1) to give compounds called ...

A: The formula for hydride formed by arsenic is AsH3

Q: The vapor pressure of water at 16°C is 13.6 torr and it is 15.5 torr at 18°C. What is the vapor 3. p...

A: Given that the vapour pressure of water at 16 degree Celsius is 13.6 torr and vapour pressure of wat...

Q: In the Benedict's test:   a. A redox reaction is occurred                 b. a brick red...

A: Benedict’s reagent is a complex mixture of sodium carbonate, sodium citrate and copper (II) sulphate...

Q: Could you draw all valid resonance structrues for these two? I understand the rules for drawing reso...

A: Resonance is the movement of electrons within molecules to form resonating structures.The valid reso...

Q: For the chemical reaction shown, 2H2O2(l)+N2H4(l)⟶4H2O(g)+N2(g) determine how many grams of N2 are p...

A: The limiting reactant in the given reaction has to be identified.

Q: Consider the following oxidation-reduction reaction. Ca(s)+Sn2+(aq)⟶Ca2+(aq)+Sn(s) The standard enth...

A: Click to see the answer

Q: 71.071.0 mol of P4O10P4O10 contains how many moles of PP?

A: Given,Moles of  P4O10 = 71mol

Q: fill in the blanks

A: For a given chemical compound or element, the number of moles refers to the ratio of the mass to tha...

Q: For an alloy that consists of 86.0 g copper, 117 g zinc, and 7.75 g lead, what are the concentration...

A: Alloy consist of:Copper (Cu) = 86.0g, zinc (Zn) = 117 g, lead (Pb) = 7.75 g.Atomic weight of:Copper ...

Q: Estimate the value of the equilibrium constant Kc for the reaction below from the data in the graph....

A: Given,[O2] = 0.750M[NO2] = 0.600M[NO] = 0.400M

Q: Rep Click the "draw structure" button to launch the drawing utility. Draw the skeletal structure of ...

A: The skeletal structure of the product of given reaction is to be drawn.

Q: Consider the combustion reaction for octane (C8H18),(C8H18), which is a primary component of gasolin...

A: Moles of octane can be calculated as given below.

Q: Determine the oxidation state of Sn in SnSO4

A: O is almost always -2. There are 4 of them so you have a -8. The SO4 ion has a -2 oxidation, so the ...

Q: Calculate Delta H for the reaction

A: The enthalpy change of reaction is calculated as,

Q: What is the enthalpy change for the following reaction?

A: According to Hess’s Law “total enthalpy change of a reaction is the sum of enthalpy change of multip...

Q: Atmospheric ozone plays a protective role by absorbing high‑energy, damaging UV radiation, including...

A: The energy of a photon of a radiation is expressed as:

Q: Given the follow ing equation: 2 NaCl03 2 NaCl + 3 02, if 12.00 moles of NaClO3 reacted in the 7. re...

A: The balanced chemical equation for the reaction is given below:

Q: This word problem needs to be changed into a formula equation and then balanced. Magnesium metal is ...

A: Magnesium metal is placed into hydrobromic acid (HBr) solution, forming hydrogen gas and aqueous mag...

Q: Diethyl ether is produced from ethanol according to the following equation: 2CH3CH2OH(l) →CH3CH2OCH2...

A: Given:2CH3CH2OH(l) →CH3CH2OCH2CH3(l) + H2O(l)Mass of ethanol = 56.5 g.

Q: What mass of Ca(OH)2 is required to neutralize 50.00mL of 0.180 M HCI?

A: Balanced chemical equation for the reaction between hydrochloric acid and calcium hydroxide is,

Q: Indicate the mols present in the following solution: 20 ml of 0.20 M HCl + 10.0 ml of 0.500 M HCl

A: 20 ml of 0.20 M HClCalculation for number of moles:

Q: Calculate the molarity of a solution that contains 17.00 grams of NaCl in 766.00 mL of solution.

A: The number of moles of a species is calculated by expression (1), in which, n is the number of moles...

Q: Which substance functions as a reducing agent in the following reaction CH4+ 2O2-->CO2+ 2H2O

A: Given information:

Q: Complete the following table. Be sure each of your answer entries has the correct number of signific...

A: The conversion factors required for this problem are:1 kcal = 1000 calOr 1 cal = 0.001 kcal1 kcal = ...

Q: For the given reaction, what volume of Br2 would be required to react with 6.4Lof NO, measured at th...

A: The given reaction is

Q: 36 ounces of beer is equivalent to how many standard drinks?

A: For a standard drink, a 5% alcohol beer bottle of 341 mL is equivalent to 12 ounces.

Q: question 12. provide the missing reagents for the follwing reaction

A: Alcohol can be converted into aldehyde by using the mild oxidizing reagent.PCC, pyridinium chlorochr...