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What type of computer programming is used for airplane ticket reservation system?
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 26.50 mL of 0.0502 M NaOH but overshoot the end point
why is the identity of an element determined by the number of protons in its nucleus? why cant the identity be
how does its vapor pressure change over time? It continues to steadily increase. It increases at first, then remains constant
Problem- Find the number of cals needed to raise the temperature of 60.0g of Al from 35C to 55C. The molar heat capacity of Al is 5.8 cal/mol C.
Write a balanced equation for each of the two steps of the reaction, namely: (1) the reaction between benzyltriphenylphosphonium chloride and sodium hydroxide
3.75g of a protein were dissolved in sufficient water to form 6.75mL of solution, and the osmotic pressure of the solution was found to be 1.88Torr at 25.0c.
The change in the Gibbs energy of a certain constant-pressure process as a function of temperature was found to fit the expression ?G (J K-1)=-73.1 J +42.8T. Calculate the value of S for the process
A student placed 18.0 grmsof glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100 gm. mark on the neck of the flask.
calculate the Al(III) concentration in the original unknown solution by correcting the dilution made when preparing the sample for analysis.Given: 10 mL unknown solution
Gasoline is composed primarily of hydrocarbons, including many with eight carbon atoms, called octanes. One of the cleanest-burning octanes is a compound called 2,3,4-trimethylpentane, which has the structural formula shown in the figure.
Based upon what you know about acids and bases, and given that manganese will be reduced by sodium bisulfite, make a prediction about how the oxidation-reduction reaction will be affected by acidic
Question- Calculate the final temperature when 4.00 kj of energy is transferred as heat to 1.50 mol BF3 at 298 K and 1 atm at constant pressure. (Assume only translational and rotational motions are excited at these temperatures).
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