Ook at sample problem 18.12 in the 8th ed silberberg book. write a balanced chemical equation (salt hydrolysis). so acetate ion + water goes to acetic acid + oh-. write the kb expression. notice it is a kb since hydroxide ion is a product. ka is given for acetic acid so calculate the kb for the acetate ion. set up an ice chart. find x which represents hydroxide ion concentration, find poh, convert to ph and enter that to 2 decimal places. what is the ph of 0.35 m sodium acetate solution at 25°c? the ka of acetic acid is 2x10-5.

1. an experiment in your science class lists the materials needed for the lab. it is your job, as a lab partner, to measure out 25 ml of distilled water and 2.5 grams of magnesium. what lab measuring tools would you choose to measure each substance and how would you use each tool to get the correct amounts? be sure to describe the process you would follow step-by-step. (5 points) 2.which of the following is an si base unit for measuring mass? (2 points) ampere gram meter pound 3.which of the following is an si base unit for time? (2 points) decades hours minutes seconds 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer. 5.a pencil beside a metric ruler. the ruler is scaled from 1 centimeter to 10 centimeters, with markings for millimeters between each number. one end of the pencil is beside the 0 on the ruler, and the pencil point is beside the 5. which of the following measurements is accurate but not precise? (2 points) 5 mm 5 cm 50 mm 50 cm 6. which of the following prefixes represents the largest value? (2 points) giga hector kilo milli 7. which of the following types of graphs is best for plotting the percentages of a whole value in a data set? (2 points) bar graph circle graph histogram line graph

What is a difference between a mixture of elements and a mixture of compounds

Which statement are accurate about snow flakes