4. a) A given inorganic compound contains only silicon (Si) and hydrogen (H). If the mass percentage of Si in this compound is 90.28%, what is the mass percentage of H in this compound? ( Hint: Mass% values of all the elements in a given compound should ultimately add up to what % ? Show work. Include units (the % symbol) and observe proper sig figs. b) What is the empirical formula of the compound in part a) ? Hint: You are going to have to refer to the periodic table to find molar masses of Si and H at some point during this calculation. Slide # 48 in Chapter 3 will be helpful to refer to. At each step, make sure to include at least four decimal places to avoid over- / under-estimating the empirical formula values.

4. a) A given inorganic compound contains only silicon (Si) and hydrogen (H). If the mass percentage of Si in this compound is 90.28%, what is the mass percentage of H in this compound? ( Hint: Mass% values of all the elements in a given compound should ultimately add up to what % ? Show work. Include units (the % symbol) and observe proper sig figs. b) What is the empirical formula of the compound in part a) ? Hint: You are going to have to refer to the periodic table to find molar masses of Si and H at some point during this calculation. Slide # 48 in Chapter 3 will be helpful to refer to. At each step, make sure to include at least four decimal places to avoid over- / under-estimating the empirical formula values.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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