gullaramu05

Question
need answers to i and j, the rest have been solved. Please help Ido know Pv=nRt is involved.

1) You are asked to make 110 mL of 1.227 M HCl starting with 4.0M HCl.
a) The volume of 4.0 M HCl needed is (to 0.1 mL)_____33.7425_________ mL

2) You standardize the "1.227 M" HCl by pipetting a known amountof it into a flask and titrating to the phenolphthalein endpointwith an NaOH solution of known concentration
Experimental Data:
Volume of "1.227 M" HCl used 3.85 mL
Concentration of NaOH used 0.2007 M
Initial buret reading 0.08 mL
Buret Reading at endpoint 24.11 mL
Calculate:
b) Exact molarity of your HCl ___1.252___________ M

3) You weigh an empty gas buret, fill it to the 50.00 mL markwith distilled water and weigh it again.
Experimental Data:
Mass of empty gas buret 56.71 g
Mass of gas buret filled to 50 mL mark with water 108.94 g
Temperature of the water 29.9

1) You weigh an empty gas buret, fill it to the 50.00 mL mark withdistilled water and weigh it again.
Experimental Data

Mass of empty gas buret 43.22 g
Mass of gas buret filled to 50 mL mark with water 96.89 g
Temperature of the water 28.7 °C
Density of water... @ 20.0 °C 0.9982 g/cc; D35 °C=0.9941 g/cc
Specific Gravity of Mercury... 13.55
Calculate:

a) Density of water at 28.7 °C (by interpolation) ______________g/cc
b) Volume of water filling buret to 50.00 mL mark ______________mL
c) Extra volume of water in addition to the 50.00 mL ______________mL
2) You are asked to make 128 mL of 1.199 M HCl starting with 9.0 MHCl.

d) The volume of 9.0 M HCl needed is (to 0.1 mL) ______________mL
3) You standardize the "1.199 M" HCl by pipetting a known amount ofit into a flask and titrating to the phenolphthalein endpoint withan NaOH solution of known concentration
Experimental Data:

Volume of "1.199 M" HCl used 4.06 mL
Concentration of NaOH used 0.1714 M
Initial buret reading 0.00 mL
Buret Reading at endpoint 28.69 mL
Calculate:

e) Exact molarity of your HCl ______________ M
4) You pipet a known amount of this standardized HCl into a 15 cmsample tube and float a "boat" containing your unknown.
You hook up the sample tube and contents to the gas buret.
You shake the tube to start the reaction.
When the metal unknown is completely dissolved, you read the gasburet and measure the height of the buret's meniscus above thewater level.
Experimental data:

Volume of standardized HCl used 4.04 mL
Weight of metal unknown used 34.9 mg
Gas buret reading after reaction is compete 26.62 mL
Height of meniscus above water level 11.9 cm
Atmospheric pressure 752.4 mmHg
Temperature of the water 23.3 °C
Calculate:

f) Vapor pressure of water at 23.3 °C
interpolate data at... http://genchem.rutgers.edu/vpwater.html______________ mmHg
g) Total volume of gas released ______________ mL
h) Partial pressure of hydrogen ______________ mmHg
i) Equivalent weight of metal
based on amount of hydrogen generated ______________ g/eq
5) The remaining solution in the 15 cm sample tube containing thereaction products and the unused HCl is quantitatively transferedto a flask and titrated to its endpoint with the standardNaOH.
Experimental data:

Initial volume of buret 0.16 mL
Final volume of buret 13.17 mL
Calculate:

j) Equivalent weight based on the amount of acid used up______________

1) You are asked to make 110 mL of 1.227 M HCl starting with 4.0M HCl.
a) The volume of 4.0 M HCl needed is (to 0.1 mL) _____33.7425_________ mL

2) You standardize the "1.227 M" HCl by pipetting a known amountof it into a flask and titrating to the phenolphthalein endpointwith an NaOH solution of known concentration
Experimental Data:
Volume of "1.227 M" HCl used 3.85 mL
Concentration of NaOH used 0.2007 M
Initial buret reading 0.08 mL
Buret Reading at endpoint 24.11 mL
Calculate:
b) Exact molarity of your HCl ___1.252___________ M

3) You weigh an empty gas buret, fill it to the 50.00 mL markwith distilled water and weigh it again.
Experimental Data:
Mass of empty gas buret 56.71 g
Mass of gas buret filled to 50 mL mark with water 108.94 g
Temperature of the water 29.9

1) You are asked to make 190 mL of 1.372 M HCl starting with 3.0 M HCl.a) The volume of 3.0 M HCl needed is (to 0.1 mL) ______________ mL2) You standardize the "1.372 M" HCl by pipetting a known amount of it into a flask and titrating to the phenolphthalein endpoint with an NaOH solution of known concentrationExperimental Data:Volume of "1.372 M" HCl used 3.62 mLConcentration of NaOH used 0.1989 MInitial buret reading 0.05 mLBuret Reading at endpoint 24.31 mLCalculate:b) Exact molarity of your HCl ______________ M3) You weigh an empty gas buret, fill it to the 50.00 mL mark with distilled water and weigh it again.Experimental Data:Mass of empty gas buret 54.18 gMass of gas buret filled to 50 mL mark with water 109.08 gTemperature of the water 27.2

You are asked to prepare 50.00 mL of a solution which has a specified concentration of hydroxide ion. You do this by adding a certain volume of 0.300 M NaOH to a 50.00 mL volumetric flask with a buret and diluting to the 50.00 mL mark with deionized water. The volume dispensed with a buret can be read to 0.01 mL. Fill in the following table noting how many mL of the 0.300 M NaOH you should determine out to prepare 50.00 mL of the following concentrations. [OH-]Volume of 0.300 M NaOH needed (mL)0.150 M0.200 M0.250 M0.300 M

Find f. f ''(theta) = sin theta + cos theta, f(0) = 2, f '(0) =2

Find f(theta)

How do religious works in the Baroque era differ from religious art of the Renaissance? What are some historical reasons for this shift?

What is the final volume of NaOH solution prepared from 250.0 mL of 0.300 M NaOH if you wanted the final concentration to be 0.150 M ?

What volume of 0.10 M NaOH can be prepared from 250. mL of 0.30 M NaOH?  

a. 0.75 L  

b. 750 L  

c. 0.25 L  

d. 0.075 L  

e. 0.083 L