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we have to calculate number of moles in 5.28 x 1023 formula units of CaCl2
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- A chemist adds 110.0 of a 1.63 molcalcium bromide (CaBr 2 ) solution to a reaction flask Calculate the mass in grams of calcium bromide the chemist has added to the flask. Be sure your answer has the correct number of significant digits.Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous sodium bromide NaBr and liquid water H2O. Suppose 79.3 g of hydrobromic acid is mixed with 24. g of sodium hydroxide. Calculate the minimum mass of hydrobromic acid that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous sodium bromide NaBr and liquid water H2O . Suppose 36. g of hydrobromic acid is mixed with 10.9 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction. Be sure your answer has the correct number of significant digits.
- Suppose 1.24 g of sodium chloride is dissolved in 200. mL of a 28.0 m M aqueous solution of silver nitrate. Calculate the final molarity of sodium cation in the solution. You can assume the volume of the solution doesn't change when the sodium chloride is dissolved in it. Be sure your answer has the correct number of significant digits. ol M x10 Ar(The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together. (-5.1 x 10' Pa cm' 3 3 = ? kPa·m x10Please answer the questions i and ii ignoring my answer
- 1)A solution of Na2CO3 is prepared by dissolving 0.511 g of the solid in approximately 30 mL of water. How many moles of Na2CO3 does this solution contain?Express your answer to the correct number of significant figures. 2)Suppose the Na2CO3 solution described in Question 1 is added to a solution that contains excess CaCl2? What is the maximum number of moles of solid CaCO3 that can form in the resulting precipitation reaction?A student sets up the following equation to solve a problem In solution stolchlometry. (The ? stands for a number the student is going to calculate.) Enter the units of the student's answer. 1 mL (0.34 L) 1.91 mL x10 -3 10 L 147.05 mol Continue oloPlease don't provide handwritten solution ....
- A chemist prepares a solution of aluminum chloride (AlCl,) by measuring out 49.6 µumol of aluminum chloride into a 400. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's aluminum chloride solution. Round your answer to 3 significant digits. mmol Ox10 L OA chemist prepares a solution of vanadium(III) bromide (VBr) by measuring out 12. mg of VBr, into a 50. ml. volumetric flask and fiting to the mark with distilled water. Calculate the molarity of Br anions in the chemist's solution. Be sure your answer is rounded to the correct number of significant digits. mol L 0.9 X ?A chemist adds 455.0 mL of a 5.23 mol L silver perchlorate (AgC10,) solution to a reaction flask. Calculate the mass in kilograms of silver perchlorate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. olo