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A. Use the dipole moments of HF and HCl ( HF= 1.08 D, HCl = 1.82) together with the percent ionic character of each bond ( HF= 20% ionic, HCl= 45% ionic) to estimate the bond length in each molecule.
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You will have a 500mL solution of salt water. From this you will take 10.0mL and place it on a balance. You find that the 10.0mL solution has a mass of 12.5 g. What is the density of the 500mL of salt water solution in g ...
A 20.0 mL sample of 0.200 M HBr solution is titratedwith 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added. (19.8 mL)
Cesium-137 has a half-life of 30.17 years. The first atomic explosion at Trinity Site in New Mexico in 1945 generated significant amounts of cesium-137. It has been 73 years since this detonation. What fraction of the ce ...
What is the volume of a solution with a concentration of 1.2 M that contains 12 g of NaOH?
A chemist makes 260. mL of silver(II) oxide AgO working solution by adding distilled water to 50.0 mL of a 0.000205 M stock solution of silver(II) oxide in water. Calculate the concentration of the chemist's working solu ...
As a distributor, Testa Produce doesn't have direct contact with the public. How might the company go about alerting consumers to its "green" initiatives?
A sample of cobalt (II) chloride hydrate starts with a mass of 3.35 g. After heating, the sample mass is 1.83 g. What is the molar ratio of water to cobalt chloride? What is the correct chemical formula
H 2 (g) + I 2 (g) = 2HI Temperature = 731 K If 1.60 mol H 2 and 4.20 mol I 2 areplaced in a 1.08 L vessel What is the equilibrium concentration of H 2 in the gaseous mixture? The equilibrium constant is K = 49.7
15 grams of NaCl is dissolved completely in a beaker containing 200mL of water. What is the Na+ concentration in moles/liter in the final solution?
An analysis of an oxide of nitrogen with a molecular weight of92.02 amu gave 69.57% oxygen and 30.43 % nitrogen. What is the empirical formula of the compound?
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