Table 4.1. Initial mixture Mass of empty 250-ml beaker, (9) 107.318 g Mass of 250-ml beaker with Mixture. (9) 109.945 g Mass of Mixture. (9) Observations: (Describe your mixture before and after addition of water) Before addition of water the mixture …

Question: Daphne needs to measure out 13.50 mL of solution and transfer it to a 250-mL beaker. Which piece (s) of glassware should she use to measure her solution if she wants to be as precise as possible? 25-mL BuretVolumetric pipets (5-, 10-, and/or 20-mL)50-mL beaker125-mL Erlenmeyer flask100-mL Graduated cylinder

Question: Part 1 Pour and mix 50 blue beads and 50 red beads into a 250 mL beaker. Without looking, select 50 beads from the 250 mL beaker, and place them in a 100 mL beaker.

Question: A student uses a 250 mL beaker to measure a volume of liquid. Is this a good practice? Prove your answer by calculating the range of possible volumes the beaker could actually be holding at the 250 mL line. (hint consider tolerance).

Question: a A 250 ml beaker contains a saturated solution of ammonium chloride in water. Which of the following are true statements about the contents of the beaker?

Question: II. 1. 2 4. Test Data: Mass of empty 250-ml beaker Mass of 250-ml beaker and saturated solution 3. Temperature of saturated solution Mass of 250-ml beaker and NaCl residue (1st weighing) Mass of 250-ml beaker and NaCl residue (2nd weighing) Mass of 250 ml beaker and NaCl residue (3rd weighing) (Use the lowest mass for calculations) 7.

VI. PROCEDURE 1. This experiment will be done in groups of two. 2. Obtain from your locker a clean dry 250-ml beaker and a 6 inch test tube. 3. Place the test tube in the beaker and measure the mass of the pair to the nearest 0.001 g. Record the mass in Table 9-1. 4. Your instructor will assign to your group a known carbonate compound. Weigh between 0.75 g and 1.25 g in the …

So this is the steps: 1. Take a 250 ml beaker, a 150 mL Erlenmeyer flask, and a 50 ml graduated cylinder from the Containers shelf and place them onto the workbench. 2. Take water from the Materials shelf and add any amount between 40 mL and 50 mL to the beaker 3. Zoom in on the beaker to see the full amount dispensed.

THERMOCHEMISTRY Equipment and Supplies: - Balance - Beaker (250 mL) - Thermometer - Graduated cylinder (50 mL) - Polystyrene cups (as calorimeter) - Sodium hydroxide, 2MNaOH - Hydrochloric acid, 2MHCl - Ammonium chloride, solid NH4Cl Objective: To determine the heat of reactions by measuring temperature changes as reactions take place in water.

Question: 1. Weighing by Addition (Note: Use an analytical balance) Fill a clean 250 -mL beaker with about 200 mL of distilled H2O. Label each of the 3 clean and dry 50 -mL beakers. Weigh the first beaker and record each value correctly. Fill a clean volumetric pipet ( 10 mL capacity) with distilled H2O and drain it into the first beaker.