Students measure the mass and volume of a sample of a golden liquid, 140 g and 90.0 ml. The true density of the liquid is 1.4 g/mL. What is the percent error in their measurements of the liquid in the lab? HINT: Use the percent error formula. O a. 16% Ob.14% Oc.-14% Od.-16%

What is the percent error for question number 5?

Part 1) what is average density of water samples. ( 1 g/ml)  Part 2) what is percent error.

1. 1. What is the difference between dilution and concentration? Bi U Font Family - AA A OE- 8 00:59:53 PREVIOUS 1 of 9 NEXT 23 2 & 4. W e 国

Can you help me with questions 4, 5, 6, and 7 please?

4. Calculate the error and percent error of a sample of water using the following data: the actual density of water at 23 °C is 0.999765 g mL-1 and the experimental density (at 23 °C) is 1.097 g mL-1. Show your work and watch your significant figures. O, Focus a

McGraw Hil ALEKS CHEMISTRY-Gener... esc E ! 1 MEASUREMENT AND MATTER Adding or subtracting and multiplying or dividing measurements Explanation -1 gml1 Q A 1 A chemistry student must write down in her lab notebook the concentration of a solution of sodium thiosulfate. 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: 1.500 g • She put some solid sodium thiosulfate into the graduated cylinder and weighed it. With the sodium thiosulfate added, the cylinder weighed 96.6 g. She added water to the graduated cylinder and dissolved the sodium thiosulfate completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 97.7 mL. What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant…

A chemist makes 960. mL of potassium permanganate (KMnO,) working solution by adding distilled water to 80.0 mL of a 0.472 M stock solution of potassium permanganate in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits. M x10 Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use / Privacy Center Accessibil 80 F Cloudy DELL F12 PrtScr Insert Delete PgUp F6 F7 F8 F9 F10 F11 Esc F1 F2 F3 F4 F5 Num Lock 24 & Backspace

11. What is the formula used for dilutions? B i U Font Family - AAr A E:E - =

A class of chemistry students measured the density of an unknown liquid. If the correct density of the sample is 1.14 g/mL, what is the percent error for their average experimental density? Group Density (g/mL) 1 1.033 1.185 1.075 4 1.026 1.135 1.022 %E = 94.6% %3D %E = 5.4% %3D %E = 6.1% %E = 5.7%