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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- Find the attached file.arrow_forward2. If a 10.0g sample of the unknown you used in Part II is dissolved in 5.00mL of water and if the solubility of potassium nitrate at exactly 0°C is 1.32m, how much potassium nitrate (in grams) from the original mixture would stay in the solution?arrow_forwardThe ICE table below shows the results of this experiment for one run of test tube 11. Note that the units of concentration are micromoles per liter! Fe3+ (µM) SCN- (uM) Fe(SCN)2* (µM) | 714 357 |C -X -X +X E 682 325 32 Calculate the value of K for the reaction based on this data. Use three significant digits in your answer. 0.0001arrow_forward
- The solubility of AgBr is measured and found to be 1.04x10-4 g/L. Use this information to calculate a Kn value for silver bromide. Ksp %3Darrow_forwardGravimetric analysis of chloride salts. What is gravimetric analysis? How is this theory applied in this experiment?arrow_forwardAnswer all questions completely. SHOW ALL WORK/CALCULATIONS:arrow_forward
- How do you do this? Thanks!arrow_forwardLactase is an enzyme that breaks down the sugar lactose which is commonly found in dairy products. Some people develop lactose intolerance as they grow older and the amount of lactase enzyme in their gut diminishes. Since the enzyme is commonly found in the gut of humans it can withstand a pH that is very acidic, ranging from a pH of 2-7. A student decided to do an experiment to determine how the pH of a solution affects lactase enzyme activity. Lactase works by breaking lactose into its two component sugars of glucose and galactose. To conduct the experiment the student prepared a solution of lactose and placed it into 5 different test tubes. A pH buffer solution was then added to each test tube with a pH of 2.0 in the first tube, 4.0 in the second, 6.0 in the third, 8.0 in the fourth, and a 10 pH in the fifth. Next, the enzyme lactase was added in equal amounts to each test tube and allowed to sit for ten minutes white the enzyme reacted with the lactose. At the end of the ten…arrow_forwardA solution is prepared such that the initial concentration of A2+ is 1.50x103 M and the initial concentration of X is 4.60x10-3 M. A2+ and X are allowed to react as shown below to establish equilibrium with the complex AX2+. In a colorimetry experiment, the equilibrium concentration of the complex AX2+ is determined to be 8.9x10-4 M. A2* (aq) + X (aq) =Ax2+ (aq) %3D Complete the ICE table below by selecting the correct value or expression to place in the ICE table from the drop-down menu. A2+ (aq) X (ад) АХ2+ (aq) Initial concentration Change in concentration Equilibrium concentration expression Equilibrium concentration valuearrow_forward
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