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Chemistry concepts and calculations

117302 questions • Page 1988 / 2347

What would you conclude about the success of your resolution if the specific rot
What would you conclude about the success of your resolution if the specific rotation of your isolated sample was -20 degree and the literature value for the single (S)-enantiomer…
What you need to do before you perform this experiment: 1. Research all aqueous
What you need to do before you perform this experiment: 1. Research all aqueous reaction types (Review Chapter 9 of your textbook). 2. Predict results of reacting the following so…
What, if any, are the Microsoft supported options for running C#/.NET 4.0 code n
What, if any, are the Microsoft supported options for running C#/.NET 4.0 code natively on the Mac? Yes, I know about Mono, but among other things, it lags Microsoft. And Silverli…
What, if any, experimental evidence do you have that the equilibrium is affected
What, if any, experimental evidence do you have that the equilibrium is affected by the addition of H_2SO_4 solution? Briefly explain. (6) Are your observation and explanation in …
What, if anything, can you conclude about the signs of ASsys and ASsurr in each
What, if anything, can you conclude about the signs of ASsys and ASsurr in each spontaneous process showrn below? H2O(l) H2O(g) Pb"(aq) Cl-(aq) PbCl2(s) a. c. + O ASsys and ASsurr…
What, specifically, does the spectrophotometer measure? Explain in full; one-wor
What, specifically, does the spectrophotometer measure? Explain in full; one-word answers will not receive credit. Answer the following questions with respect to Beer's Law and th…
What\'s an s, p, or d orbital? 3. How is an ionic bond different from a covalent
What's an s, p, or d orbital? 3. How is an ionic bond different from a covalent bond? In terms of bond strength? Why? Bond polarity 4. What's a polar covalent bond? How do you ind…
What\'s making the small pieces of CO2 \"sing and dance\"? What would happen to
What's making the small pieces of CO2 "sing and dance"? What would happen to the final result if the CO2(s) sample was too large (more than enough) to fill the flask? What would h…
What\'s the analogy? How can I make one :/? Compare the molar concentration of t
What's the analogy? How can I make one :/? Compare the molar concentration of the crystal violet solution to that of the sodium hydroxide solution. Using the two concentrations, w…
What\'s the best approach to creating documentation (displaying the function pro
What's the best approach to creating documentation (displaying the function prototype if you will) for functions that take a variety of different forms in terms of parameters. Let…
What\'s the best web development IDE that you\'ve come across, that also handles
What's the best web development IDE that you've come across, that also handles Core PHP work and JS very well (eg. AngularJS)? Required: Extremely fast -- there's nothing more ann…
What\'s the complete molecular equation, net ionic equation, and spectator ion(s
What's the complete molecular equation, net ionic equation, and spectator ion(s) of each of the following reactions. 1.) hydrochloric acid and ammonium carbonate 2.) hydrochloric …
What\'s the difference between catalyst and temperature when they affect equilib
What's the difference between catalyst and temperature when they affect equilibrium constant? I know only T could change the position through a higher kinetic energy that allows m…
What\'s the expected amount of trans -[Co(NH 3 ) 4 Cl 2 ]Cl obtained by this pro
What's the expected amount of trans-[Co(NH3)4Cl2]Cl obtained by this process below? 1) Set up a sand bath at 80°C. 2) Dissolve 0.5 g of ([Co(NH3)4CO3]NO3) in 2.5 mL of distilled w…
What\'s the name for a class that has only methods? There are no fields/properti
What's the name for a class that has only methods? There are no fields/properties. Just two methods with the ability to parse some file in two ways. I have named the class Parser,…
What\'s the output of this code? Stack s = new Stack(); s.push(7); s.pu
What's the output of this code? Stack s = new Stack<Integer>(); s.push(7); s.push(10); System.out.println(s.pop()); System.out.println(s.peek()); s.push(3);<br> s.push…
What\'s the problem with my Add function? Other functions seens working well, bu
What's the problem with my Add function? Other functions seens working well, but there is problem in print array in binary search tree. -------------------------------------------…
What\'s the purpose of running a background IR Spec with isopropyl alcohol? Ok s
What's the purpose of running a background IR Spec with isopropyl alcohol? Ok so I need help writing my lab report. For the experiment we synthesized aspirin from salicylic acid a…
What\'s the right moment to record the temperature when you are trying to determ
What's the right moment to record the temperature when you are trying to determine boiling point of a volatile liquid using the microboiling point apparatus? When the bubbles emer…
What\'s wrong with my code? ( FIX for loops) #include using namespace
What's wrong with my code? ( FIX for loops) #include <iostream> using namespace std; int main( ) { const int NUM_ROWS = 2; const int NUM_COLS = 2; int milesTracker[NUM_ROWS]…
What\'s wrong with my code? why it always says syntax error for line 6 \" : \" a
What's wrong with my code? why it always says syntax error for line 6 " : " and 12 "val" and 12 ")" Can someone help me to figure that out? program gimmenum; #include("stdlib.hhf"…
What\'s wrong with my code???? -------------- Question: The squirrels in Palo Al
What's wrong with my code???? -------------- Question: The squirrels in Palo Alto spend most of the day playing. In particular, they play if the temperature is between 60 and 90 (…
What\'s wrong with this? I am trying to find arctanhx series. Below is the code
What's wrong with this? I am trying to find arctanhx series. Below is the code # include <stdio.h> # include <conio.h> # include <math.h> void main() { int i, n …
Whatistheorderofthereactantcrystalviolet?Howdid you determine this? What does th
Whatistheorderofthereactantcrystalviolet?Howdid you determine this? What does this mean is regards to the overall rate law? What would happen if the concentration of the crystal v…
Whats causing this...Please help me. Please keep in mind tester.cpp CANNOT be ch
Whats causing this...Please help me. Please keep in mind tester.cpp CANNOT be changed. /////////////MY ERROR MESSAGE///////////////////// clang++ -std=c++11 -I. -c vehicles.cpp ve…
Wheeling Jesuit University- CHE 316-Spring18 S ng Jump to.. Sapling Learning 23.
Wheeling Jesuit University- CHE 316-Spring18 S ng Jump to.. Sapling Learning 23.92 ml of a Pb solution, containing excess Pb, was added to 12.25 mL of a 2.3-dimercapto-1- propanol…
Wheeling Jesuit University- CHE 316-Spring18 S ng Jump to.. Sapling Learning 23.
Wheeling Jesuit University- CHE 316-Spring18 S ng Jump to.. Sapling Learning 23.92 ml of a Pb solution, containing excess Pb, was added to 12.25 mL of a 2.3-dimercapto-1- propanol…
When .422g of phosphorus is burned, .967g of white oxide isobtained. Determine t
When .422g of phosphorus is burned, .967g of white oxide isobtained. Determine the empirical formula of the oxide and write a balancedequation for the reaction of phosphorus and m…
When .7521 g of benzoic acid was burned in calorimetercontaining 1000 g of water
When .7521 g of benzoic acid was burned in calorimetercontaining 1000 g of water, a temperature rise of 3.6 degreescelcius was observed. The heat capacity of the bomb calorimeter,…
When 0.0150 mol of a metal was reacted with 30.0 mL of 4.00 M HC1, 1150 mL of wa
When 0.0150 mol of a metal was reacted with 30.0 mL of 4.00 M HC1, 1150 mL of water were displaced at a barometric pressure of 755.0 torr. The temperature of both the H_2 and H_2O…
When 0.030 mol of HCl dissolves in 100.0 g of benzene, the solution freezes at 4
When 0.030 mol of HCl dissolves in 100.0 g of benzene, the solution freezes at 4.04 oC. When 0.030 mol of HCl dissolves in 100.0 g of water, the solution freezes at -1.07 oC. Use …
When 0.030 mol of HCl dissolves in 100.0 g of benzene, the solution freezes at 4
When 0.030 mol of HCl dissolves in 100.0 g of benzene, the solution freezes at 4.04 oC. When 0.030 mol of HCl dissolves in 100.0 g of water, the solution freezes at -1.07 oC. Use …
When 0.044S g of magnesium metal was allowed to react with excess hydrochloric a
When 0.044S g of magnesium metal was allowed to react with excess hydrochloric acid, 46.50 mL of hydrogen gas was collected over water. The barometric pressure at the time was rep…
When 0.075 g of the antibiotic, pehicillamine is dissolved in 10.0 mL of pyridin
When 0.075 g of the antibiotic, pehicillamine is dissolved in 10.0 mL of pyridine and placed in a sample cell of 100.0 mm in length, the observed rotation at 20degree C. using the…
When 0.1 mole of hcl gas is placed in a 10 L container at 25 C, the pressure is
When 0.1 mole of hcl gas is placed in a 10 L container at 25 C, the pressure is about the same as observed when 0.1 mole of NH3 is placed in an identical box at the same temperatu…
When 0.124 mol carbon is burned in aclosed vessel with 8.06 g oxygen, how manygr
When 0.124 mol carbon is burned in aclosed vessel with 8.06 g oxygen, how manygrams of carbon dioxide can form? I have figured this out. However I cannot figure out thesecond part…
When 0.152 mol of solid PH3BCl3 is introduced into a 3.0 Lcontainer at a certain
When 0.152 mol of solid PH3BCl3 is introduced into a 3.0 Lcontainer at a certain temperture, 8.44 x 106-3 mol of PH3 ispresent at equilibrium: PH3BCl3 (s) <---> PH3 (g) + BC…
When 0.187 g of benzene. C_6H_6, is burned in a bomb calorimeter, the surroundin
When 0.187 g of benzene. C_6H_6, is burned in a bomb calorimeter, the surrounding water bath rises in temperature by 7.48 degree C. Assuming that the bath contains 250.0 g of wate…
When 0.25 moles of carbon monoxide reacts with oxygen to give carbon dioxide. 14
When 0.25 moles of carbon monoxide reacts with oxygen to give carbon dioxide. 142 kg of heat are given off delta H degree for the following reaction is: CO (g) + 1/2 O_2 (g) right…
When 0.40 g of impure zinc reacted with an excess of hydrochloric acid, 127 mL o
When 0.40 g of impure zinc reacted with an excess of hydrochloric acid, 127 mL of hydrogen was collected over water at 10.o C. The external pressure was 737.7 Torr. (a) What volum…
When 0.422 g of phosphorus is burned, 0.967 of a white oxideis obtained. a. Dete
When 0.422 g of phosphorus is burned, 0.967 of a white oxideis obtained. a. Determine the empirical formula of the oxide. b. Write a balanced equation for the reaction of phosphor…
When 0.50 g of magnesium metal is placed in a calorimeter, and 100. mL of 1.0 M
When 0.50 g of magnesium metal is placed in a calorimeter, and 100. mL of 1.0 M HCl were added the temperature of solution increased from 22.2 ºC to 44.2 ºC.  Assume that the spec…
When 0.514 g of biphenyl (C_12H_10) undergoes combustion in a bomb calorimeter,
When 0.514 g of biphenyl (C_12H_10) undergoes combustion in a bomb calorimeter, the temperature rises 25.0 degree to 29.4 degree C. Find Delta E_rxn for the combustion of biphenyl…
When 0.595 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, th
When 0.595 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.4 C to 29.9 C. Part A Find Erxn for the combustion of biphenyl in kJ/mo…
When 0.7587g of an alloy is dissolved in a total volume of 50.0mL, the absorbanc
When 0.7587g of an alloy is dissolved in a total volume of 50.0mL, the absorbance of the solution at 690nm, due to copper, is found to be 0.765. A 10.00ml aliquot of the solution …
When 0.7587g of an alloy is dissolved in a total volume of 50.0mL, the absorbanc
When 0.7587g of an alloy is dissolved in a total volume of 50.0mL, the absorbance of the solution at 690nm, due to copper, is found to be 0.765. A 10.00ml aliquot of the solution …
When 0.800 grams of NaOH is dissolved in 100.0 grams of water, the temperature o
When 0.800 grams of NaOH is dissolved in 100.0 grams of water, the temperature of the solution increases from 25.00 to 27.06 degree C. Calculate the enthalpy of dissolution of NaO…
When 0.854 g of impure zinc reacted with an excess of hydrochloric acid, 244 mL
When 0.854 g of impure zinc reacted with an excess of hydrochloric acid, 244 mL of hydrogen gas was collected over water at 10.0 °C. The external pressure was 714.96 Torr. The vap…
When 0.96 g of benzoic acid was combusted, C7H6O2(s) + 15/2O2(g) rightarrow 7CO2
When 0.96 g of benzoic acid was combusted, C7H6O2(s) + 15/2O2(g) rightarrow 7CO2(g) + 3H2O(l), using 10 cm of fuse wire for the electrical ignition, the temperature was increased …
When 0.96 g of benzoic acid was combusted, C7H6O2(s) + 15/2O2(g) rightarrow 7CO2
When 0.96 g of benzoic acid was combusted, C7H6O2(s) + 15/2O2(g) rightarrow 7CO2(g) + 3H2O(l), using 10 cm of fuse wire for the electrical ignition, the temperature was increased …