of Ksp depends on the concentrations of the ions in solution‚ a larger value of Ksp indicates a more soluble salt‚ while a smaller value of Ksp indicates a less soluble salt. Which of the following salts is the most soluble? AgCl (Ksp = 1.8x10-10) AgI (Ksp = 8.5x10-17) -13 AgBr (Ksp = 5.4x10 ) A: AgCl is most soluble (it has the largest Ksp‚ therefore‚ largest s) Q: Calculate the molar solubility of Ag2SO4 in 1.0M NaSO4. Ksp = 1.4x10-5 A: Using the concentration table: ( ) ( ); Neglecting
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tarnishing. Silver coins also used to be used in the ancient world but has been stoped today. Silver is also used in the making of jewellery‚ cutlery‚ and decorative. Silver is also in batteries. Silver Nitrate (agNO3) is used in photo films. Silver Iodide (AgI) is used to see clouds to predict
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A double displacement reaction is a type of chemical reaction in which two compounds react in order to create two new chemicals. The two cations and anions switch places with each other which forms two new compounds. As an example AB+CC can switch to AD+CB. Both sides of these equations must balance out in order to be neutral. So any pairs of compounds (such as A+B) must have a total balanced charge. In this example A could have a charge of positive 2 (+2) and B could have a charge of negative
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Have you ever heard of Auschwitz-Birkenau? Have you ever wondered what happened inside its walls? Auschwitz-Birkenau was a concentration camp constructed for labor‚ punishing the prisoners inside‚ and making life difficult for the Jewish people of the camp. This concentration camp was constructed for prisoner labor. During the fall of 1941‚ Heinrich Himmler ordered SS commissioner‚ Odilo Globocnik‚ who was occupied at Poland during the time‚ to construct labor and death camps around the area. Auschwitz
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Topic 11a – Group 7‚ the Halogens Revision Notes 1) Trends in physical properties of the elements • At room temperature‚ Cl2 is a pale green gas‚ Br2 is a brown liquid‚ I2 is a blue-black solid. • In Group 7‚ boiling point increases down the group because the molecules have more electrons and‚ therefore‚ stronger van der Waal’s forces which require more energy to overcome them • Electronegativity is the ability of an atom to attract the electrons in a covalent bond • Down
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Qualitative Observations of Double Displacement Reactions Lab Table 1.0 Qualitative Observation of Products Formed |Balanced Chemical Equations |Qualitative Observations | |BaCl2 (aq) + 2NaOH (aq)( BaOH2(aq) + 2NaCl(s) |An aqueous solution formed | | |Precipitate
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surface once again‚ this time not because of lack of representation‚ but because of the unfair gaps that it is creating in society. President Obama had an adjusted gross income (AGI) in 2011 of almost $800‚000 and paid federal and state income taxes at a tax rate of almost twenty-one percent‚ while his secretaries AGI was less than $100‚000 and her tax rate was closer to twenty-five percent. This is a prime example of the flaws in our tax codes as they are now written. They are currently allowing
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Unit 18 B Study Guide 1. Find the solubility (in mol/L) of lead(II) chloride (PbCl2) at 25oC. Ksp = 1.62e–5. A) 1.59e–2 B) 2.53e–2 C) 6.64e–17 D) 2.01e–3 E) 2.01e–2 2. The two salts AgX and AgY have very similar solubilities in water. It is known that the salt AgX is much more soluble in acid than is AgY. What can be said about the relative strengths of the acids HX and HY? A) Nothing. B) HY is stronger than HX. C) HX is stronger than HY. D) The acids have equal strengths. E)
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Insulin pumps send insulin through a small catheter continuously in small doses. This is places in a subcutaneous area and stays there for 2 or 3 days. The insulin pump is usually placed in the abdomen area or the buttocks. When it’s time for meals or snacks the patient can push a button which sends a bolus of insulin. This method is for patients who wants to have good control of the glucose levels and have a flexible lifestyle. Oral hypoglycemic medication is for patients who have type 2 diabetes
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As an illustration‚ a red light camera is a special type of camera that takes pictures of vehicles that pass a red light. The camera captures vehicles that run through a red light and gets a snap of the vehicle’s number plate for law enforcement official to review. Red light cameras are placed near the intersections so when a car passes the intersection during a red light‚ the camera can get a click of the vehicle. In addition‚ there are numerous production rules built in a red light camera. A production
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