Chapter 1, Problem 3P

Please correct answer and don't used hand raiting

Use excel to plot the following titration data. Once you have done your plot, make sure to label the axes correctly. Use your graph to determine the pK, for the weak acid. Attach your plot to the back of this worksheet. A 1.0M solution of weak acid was titrated with a base and the following data was collected. Equivalents of Base pH observed 0.05 3.4 0.15 3.9 0.25 4.2 0.40 4.5 0.60 4.9 0.75 5.2 0.85 5.4 0.95 6.0

1. Write the dissociation reaction then calculate the pH for the following STRONG substances. a. 2.5x103 M HBr b.5.6x10 M NaOH

74. A contour map for an atomic orbital of hydrogen is shown below for the xy and xz planes. Identify the type (s, p, d, f, g . . .) of orbital. axis x axis z axis Cooo xy plane

A buffer is prepared by adding 0.50 mol of acetic acid (HC2H3O2) and 0.75 mol of sodium acetate (NaC2H3O2) to enough water to form 2.00L solution. (pKa for acetic acid is 4.74) Calculate the pH of the buffer.

Modify the given carbon skeleton to draw the major product of the following reaction. If a racemic mixture of enantiomers is expected, draw both enantiomers. Note: you can select a structure and use Copy and Paste to save drawing time. HBr کی CH3 کی Edit Drawing

Sort the following into the classification for a reaction that is NOT at equilibrium versus a reaction system that has reached equilibrium. Drag the appropriate items to their respective bins. View Available Hint(s) The forward and reverse reactions proceed at the same rate. Chemical equilibrium is a dynamic state. The ratio of products to reactants is not stable. Reset Help The state of chemical equilibrium will remain the same unless reactants or products escape or are introduced into the system. This will disturb the equilibrium. The concentration of products is increasing, and the concentration of reactants is decreasing. The ratio of products to reactants does not change. The rate at which products form from reactants is equal to the rate at which reactants form from products. The concentrations of reactants and products are stable and cease to change. The reaction has reached equilibrium. The rate of the forward reaction is greater than the rate of the reverse reaction. The…

Place the following characteristics into the box for the correct ion. Note that some of the characteristics will not be placed in either bin. Use your periodic table for assistance. Link to Periodic Table Drag the characteristics to their respective bins. ▸ View Available Hint(s) This anion could form a neutral compound by forming an ionic bond with one Ca²+. Reset Help This ion forms ionic bonds with nonmetals. This ion has a 1- charge. This is a polyatomic ion. The neutral atom from which this ion is formed is a metal. The atom from which this ion is formed gains an electron to become an ion. The atom from which this ion is formed loses an electron to become an ion. This ion has a total of 18 electrons. This ion has a total of 36 electrons. This ion has covalent bonds and a net 2- charge. This ion has a 1+ charge. Potassium ion Bromide ion Sulfate ion

U Consider the following graph containing line plots for the moles of Product 1 versus time (minutes) and the moles of Product 2 versus time in minutes. Choose all of the key terms/phrases that describe the plots on this graph. Check all that apply. ▸ View Available Hint(s) Slope is zero. More of Product 1 is obtained in 12 minutes. Slope has units of moles per minute. plot of minutes versus moles positive relationship between moles and minutes negative relationship between moles and minutes Slope has units of minutes per moles. More of Product 2 is obtained in 12 minutes. can be described using equation y = mx + b plot of moles versus minutes y-intercept is at (12,10). y-intercept is at the origin. Product Amount (moles) Product 1 B (12,10) Product 2 E 1 Time (minutes) A (12,5)