The Ksp value for bismuth iodide, Bil3, is 7.71 x 10-¹9 at 25°C. Calculate the concentration of iodide at 25°C. Round to two non-zero decimal places. Leave in standard notation if possible.
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- The solubility of PbCO3 in water at 25°C is measured to be 7.3x10−5g/L. Use this information to calculate Ksp for PbCO3. Round your answer to 2 significant digits.Enter a balanced equation for the reaction between aqueous lead(II) nitrite and aqueous sodium bromide to form solid lead (II) bromide and aqueous sodium nitrite. Express your answer as a chemical equation. Identify all of the phases in your answer. | 圈 femplates Symbols undo redo reset keyboard shortcuts help ΑΣΦ . DA chemical reaction does not occur for this question.1. (answer the questions in the tan boxes in the tables below each question) A student conducted an investigation to determine the effect of water temperature on the amount of sugar that dissolves in a beaker of water. Identify components for trial 1 of this investigation. Beaker Number 1 2 3 4 Amount of Water (mL) 100 100 100 100 Amount of Water (mL) Trial 1 Temperature of Temperature of Amount of Sugar Sugar (°C) Water (°C) Dissolved (g) 20 20 20 20 Temperature of Sugar 5 10 15 20 185 189 194 204 Temperature of Water Terms Variable Constant Amount of Sugar Dissolved
- Is the concentration of the solution prepared in the question below only approximate because sodium hydroxide is not a primary standard? * Find the mass in grams of sodium hydroxide that will be required to prepare a solution with a concentration of 0.500 mol·dm⁻³ in a 250 cm³ volumetric flask. [Round the answer to three decimal places. Do not type in the unit. Use a decimal point.] *CH₂-COOH Citric acid has the formula HO-C-COOH I CH₂-COOH CH2–CDD - Na* + HD-C-CDD- Na CH₂-COO- COO-Na A 25.0 mL sample of a concentrated citrus fruit cordial component (e.g. for lime juice), used in the food & drinks industry, was diluted to 250 mL in a graduated volumetric flask. A 25.0 mL sample of this diluted solution, required, on average, 22.5 mL of a standard 0.100 molar sodium hydroxide solution using phenolphthalein indicator for the titration end-point. A) 0.0075 Assuming all the acid in the cordial was citric acid, calculate the concentration of the acid in g/mL in the original solution. B) 0.576 D and is tribasic acid, forming the tri-sodium salt on complete neutralisation with sodium hydroxide. 1.44 0.00225Both boxes. box 2 answer choices: Q is less than K, Q is greater than K, Q is equal to K.
- A homogeneous mixture has non-uniformly distributed particles a uniform composition throughout not a uniform composition throughout more than one phaseA Chemistry 20 student uses a thermometer and a hot plate and measures the boiling point of ethyl alcohol to be 74.3 ºC. Then, she looks in a reference book and finds that the actual boiling point of ethyl alcohol is 78.4 ºC. What is her percent error?Part C MnO4 (aq) + Al(s)-→Mn²* (aq) + Al³* (aq) Express your answer as a chemical equation. Identify all of the phases in your answer. |ΑΣφ ? OA chemical reaction does not occur for this question. Submit Request Answer
- 11 of 11 I Review | Constants Periodic Table Suppose that you want to construct a line with slope m = 3 that passes through the point (2, 1). You would begin by setting up the equation y = 3x +b If you plug in the coordinates for any point on that line, the two sides of the equation will be equal. Once you've done this, you can solve for b. What is the value of b? Express your answer as an integer. > View Available Hint(s) 8:59 PM 41% 67°F x口ツ 8/31/2021The solubility of Zn(OH)2 in water at 25 °C is measured to be 4.2 × 101 Round your answer to 2 significant digits. L □×10 ⑤ Use this information to calculate KS, for Zn(OH)2. spThe solubility of Co (OH), in water at 25 °C is measured to be 6.4 x 10 -4 g -. Use this information to calculate K.. for ds. Со (ОН)2. Round your answer to 2 significant digits.