A chemist adds 460.0 mL of a 2.7M iron(II) bromide (FeBr2) solution to a reaction flask. Calculate the mass in kilograms of iron(II) bromide the chemist has added to the flask. Be sure your answer has the correct number of significant digits. ☐ kg x10
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- 3. What volume of 0.250 M KMnO4(aq) contains 0.500 g KMnO4? 0.791 Ml 2.00 mL 127 mL 125 mLA chemist adds 45.0 mL of a 1.5 mol/L nickel(II) chloride (NiC1₂) solution to a reaction flask. Calculate the mass in grams of nickel(II) chloride the chemist has added to the flask. Be sure your answer has the correct number of significant digits. 8.75 g x10A chemist adds 0.45 L of a 2.9 × 10 M copper(II) fluoride (CuF,) solution to a reaction flask. Calculate the mass in milligrams of copper(II) fluoride the chemist has added to the flask. Be sure your answer has the correct number of significant digits. O mg
- A chemist prepares a solution of nickel(II) chloride NiCl2 by measuring out ×1.010^2μmolof nickel(II) chloride into a 350.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's nickel(II) chloride solution. Be sure your answer has the correct number of significant digits.A chemist adds 215.0 mL of a 0.047 mmol/L sodium thiosulfate (Na₂S2O3) solution to a reaction flask. Calculate the mass in milligrams of sodium thiosulfa the chemist has added to the flask. Round your answer to 2 significant digits. mg 0 10 X 5A chemist prepares a solution of magnesium chloride MgCl2 by measuring out 2.3g of MgCl2 into a 250.mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Cl− anions in the chemist's solution. Be sure your answer is rounded to the correct number of significant digits.
- A chemist prepares a solution of silver(I) perchlorate (AgClO) by measuring out 4.4 x 10 umol of silver(I) perchlorate into a 150. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's silver(I) perchlorate solution, Be sure your answer has the correct number of significant digits. mmol 回 国A chemist prepares a solution of silver(I) nitrate (AgNO3) by measuring out 1.9 × 10 μmol of silver(I) nitrate into a 500. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's silver(I) nitrate solution. Be sure your answer has the correct number of significant digits. mmol L X 3A chemist adds 145.0 mL of a 0.00260 mol/L calcium sulfate (CaSO.) solution to a reaction flask. Calculate the millimoles of calcium sulfate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. |mmol x10 ?
- A chemist prepares a solution of potassium chloride (KC1) by measuring out 43. mg of KCl into a 50. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Canions in the chemist's solution. Be sure your answer is rounded to 2 significant digits. 0 mol L x10 X ŚA chemist adds 310.0 mL of a 0.045 mmol/L sodium thiosulfate (Na₂S₂03) solution to a reaction flask. Calculate the mass in milligrams of sodium thiosulfate the chemist has added to the flask. Round your answer to 2 significant digits. mg x10 XA chemist prepares a solution of silver nitrate (AgNO3) by measuring out 121. g of silver nitrate into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver nitrate solution. Be sure your answer has the correct number of significant digits. Ú mol/L x10 X