Volume of a drop of H2O Total volume in graduated cylinder 3.11 mL Total number of drops placed in cylinder 74 Volume of one drop of water Measured volume in  L quarts

A chemist prepares a solution of barium acetate BaC2H3O22 by measuring out 83.g of barium acetate into a 250.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in /molL of the chemist's barium acetate solution. Round your answer to 2 significant digits.

A 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

Calculate the number of oxygen atoms in a 70.0 g sample of vanadium(V) oxide (V₂O5). Be sure your answer has a unit symbol if necessary, and round it to 3 significant digits. 1 0. x10 X 5

A chemist prepares a solution of sodium chloride (NaCI) by measuring out 81.7 g of sodium chloride into a 450. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's sodium chloride solution. Round your answer to 3 significant digits. olo mol/L x10 Ar

A chemist prepares a solution of potassium dichromate (K2Cr2O7) by measuring out 19.4g of potassium dichromate into a 250.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium dichromate solution. Round your answer to 3 significant digits.

O MEASUREMENT Adding or subtracting and multiplying or dividing measurements A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 1.5 g • She put some solid sodium hydroxide into the graduated cylinder and weighed it. With the sodium hydroxide added, the cylinder weighed 36.669 g. • She added water to the graduated cylinder and dissolved the sodium hydroxide completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 37.11 mL. What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant digits. g mL Explanation -1 Check 99+ 0/5 VUDU © 2023 McGraw Hill LLC. All Rights…

A chemist prepares a solution of mercury(I) chloride (Hg,Cl,) by measuring out 0.00116 µmol of mercury(I) chloride into a 450. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's mercury(I) chloride solution. Round your answer to 3 significant digits. mmol L.

A chemist adds 305.0 mL of a 0.41 M barium chloride (BaCl₂) solution to a reaction flask. Calculate the millimoles of barium chloride the chemist has added to the flask. Round your answer to 2 significant digits. 1.25 x 10 mmol [NN] X 5 ? Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility Ad DII F11 F12 F10 FO FB F7 esc ! 1 Explanation 2 Check 39: F2 14/ # 3 80 F3 $ 4 000 F4 R % 5 ܐ FS T ^ 6 F6 Y & 7 U * 00 8 ہ ۔ 9 ) 0 0 P + 11 T D olo Ar