a student poured 5.2 mL of water into a test tube. she marked the levers of...
a student poured 5.2 mL of water into a test tube. she marked the levers of water on the test tube and pored it out. Using a dropper, she filled the test tube to the marked level drop. she used 75 drops of water. How many drops if water be in 1 ml?
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a student poured 5.2 mL of water into a test tube. she
marked the levers of...
A student carefully pipets 25.0 mL of 0.525 M NaOH into a test tube. She places...
A student carefully pipets 25.0 mL of 0.525 M NaOH into a test tube. She places the test tube into a small beaker to keep it from spilling and then pipets 75.0 mL of 0.355 M HC 5. into another test tube. When she reaches to put this test tube of acid into the beaker along with test tube of base she accidentally knocks the test tubes together hard enough to break them and their respective contents combine in the...
I put 5 mL of water in a test tube with 3 drops of the indicator...
I put 5 mL of water in a test tube with 3 drops of the indicator methyl orange. If I wanted my solution to become red in color, I should add 1 Select]
Question 13 Not yet answered Marked out of 3 P Flag question 09 Which test tube...
Question 13 Not yet answered Marked out of 3 P Flag question 09 Which test tube in the figure shows how a bacterial culture of microaerophiles would grow? Which test tube in the figure shows how a bacterial culture of aeroterant anaerobe would grow? Which test tube in the figure shows how a bacterial culture of obligate aerobe would grow? Drag and drop from the answers below. Tube A Tube B Tube Tube D Tube E
4) Get a medium test tube and fill it with about 5 mL of water and...
4) Get a medium test tube and fill it with about 5 mL of water and a few drops of universal indicator. Take a soda straw and gently blow bubbles into the water. Note what happens to the color of the universal indicator What does the color of the universal indicator tell? Q. Balanced chemical equation:
5. You measure out 5 mL of water by eye into five different test tubes. When...
5. You measure out 5 mL of water by eye into five different test tubes. When you go back and check, you find the amount of water in each tube is 4.8 mL, 5.3 mL, 5.2 mL. 4.8 mL, and 4.7 mL Accurate Precise Both Neither
3. Why was the concentration of catechol in test tube 2 and 4? Caps Lo 448...
3. Why was the concentration of catechol in test tube 2 and
4?
Caps Lo 448 1. I You will determine 2. Why Shift 1 he sequence given in the Ctrl record whether or Activity 6 - Enzyme Inhibition This activity will investigate the inhibition of catechol oxidase by phenylthiourea (PTU). You w PTU is a competitive or noncompetitive inhibitor. 1. Write your hypothesis and prediction. 2. Obtain a bottle of PTU. 3. Using Table 6.1, prepare three experimental tubes....
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone...
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone Cyclohexanone Unknown Part D. Iodoform Test. Test Sample Tube 1 2-hydroxybutanal Prediction Observations Results (+ or -) Benzaldehyde Propanone Cyclohexanone Unknown Experiment 12 Identification of Aldehydes and Ketones O the b e t theader of each holding your breath as a st beward your nose. Record the derson the specified memes from O Ta Test g shes between ones that contain a methyl group...
a student performs this experiment and produces 215 ml of oxygen saturated with water vapor. The...
a student performs this experiment and produces 215 ml of oxygen saturated with water vapor. The temperature is 27 degrees Celsius, atmospheric pressure was 743 mm Hg and the vapor pressure of water at this temperature is 26.7 mmHg. What is the partial pressure of oxygen in this sample? How many moles of oxygen are produced? If the test tube lost 0.258 g of mass during this reaction, what is the molar mass of oxygen?
Experiment 8 Solubility of lonic Precipitates Lead chloride is a slightly soluble salt. When lead chloride...
Experiment 8 Solubility of lonic Precipitates Lead chloride is a slightly soluble salt. When lead chloride dissolves in pure water or an aqueous solution, the small quantity that dissolves completely ionizes and reaches equilibrium in a saturated solution, PbCl(s) ® Pb (aq) + 2Cl(aq) Kp = [Pb (C) (1) Lets be the molar solubility of lead chloride. In pure water, s = [Pb ) = (CH) / 2. In a solution containing Cl, a common ion to lead chloride, s...
Hydrocarbons Experiment F. Basic Oxidation 1. Place 1 drop of the sample in a test tube 2. Add 1 drop of 2%...
Hydrocarbons Experiment
F. Basic Oxidation 1. Place 1 drop of the sample in a test tube 2. Add 1 drop of 2% KM 0 3. Add 3 drops of 10% NaOH 4. Add 7 drops water. 5. Observe the rate of color change. DATA AND RESULTS Compound used Chloromethane Cyclohexane Bond-line Structure A. Basic Oxidation Inference Compound used Toluene Benzene Bond-line Structure A. Basic Oxidation Inference
A student carefully pipets 25.0 mL of 0.525 M NaOH into a test tube. She places the test tube into a small beaker to keep it from spilling and then pipets 75.0 mL of 0.355 M HC 5. into another test tube. When she reaches to put this test tube of acid into the beaker along with test tube of base she accidentally knocks the test tubes together hard enough to break them and their respective contents combine in the...
I put 5 mL of water in a test tube with 3 drops of the indicator methyl orange. If I wanted my solution to become red in color, I should add 1 Select]
Question 13 Not yet answered Marked out of 3 P Flag question 09 Which test tube in the figure shows how a bacterial culture of microaerophiles would grow? Which test tube in the figure shows how a bacterial culture of aeroterant anaerobe would grow? Which test tube in the figure shows how a bacterial culture of obligate aerobe would grow? Drag and drop from the answers below. Tube A Tube B Tube Tube D Tube E
4) Get a medium test tube and fill it with about 5 mL of water and a few drops of universal indicator. Take a soda straw and gently blow bubbles into the water. Note what happens to the color of the universal indicator What does the color of the universal indicator tell? Q. Balanced chemical equation:
5. You measure out 5 mL of water by eye into five different test tubes. When you go back and check, you find the amount of water in each tube is 4.8 mL, 5.3 mL, 5.2 mL. 4.8 mL, and 4.7 mL Accurate Precise Both Neither
3. Why was the concentration of catechol in test tube 2 and
4?
Caps Lo 448 1. I You will determine 2. Why Shift 1 he sequence given in the Ctrl record whether or Activity 6 - Enzyme Inhibition This activity will investigate the inhibition of catechol oxidase by phenylthiourea (PTU). You w PTU is a competitive or noncompetitive inhibitor. 1. Write your hypothesis and prediction. 2. Obtain a bottle of PTU. 3. Using Table 6.1, prepare three experimental tubes....
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone Cyclohexanone Unknown Part D. Iodoform Test. Test Sample Tube 1 2-hydroxybutanal Prediction Observations Results (+ or -) Benzaldehyde Propanone Cyclohexanone Unknown Experiment 12 Identification of Aldehydes and Ketones O the b e t theader of each holding your breath as a st beward your nose. Record the derson the specified memes from O Ta Test g shes between ones that contain a methyl group...
Experiment 8 Solubility of lonic Precipitates Lead chloride is a slightly soluble salt. When lead chloride dissolves in pure water or an aqueous solution, the small quantity that dissolves completely ionizes and reaches equilibrium in a saturated solution, PbCl(s) ® Pb (aq) + 2Cl(aq) Kp = [Pb (C) (1) Lets be the molar solubility of lead chloride. In pure water, s = [Pb ) = (CH) / 2. In a solution containing Cl, a common ion to lead chloride, s...
Hydrocarbons Experiment
F. Basic Oxidation 1. Place 1 drop of the sample in a test tube 2. Add 1 drop of 2% KM 0 3. Add 3 drops of 10% NaOH 4. Add 7 drops water. 5. Observe the rate of color change. DATA AND RESULTS Compound used Chloromethane Cyclohexane Bond-line Structure A. Basic Oxidation Inference Compound used Toluene Benzene Bond-line Structure A. Basic Oxidation Inference
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