hw3 1. in lab you need to measure out 0.46 mol of C7H14O7C7H14O7 for an experiment....
hw3
1. in lab you need to measure out 0.46 mol of C7H14O7C7H14O7 for an experiment. How many grams should you weigh out? Give your answer to 2 decimal spaces.
2.In lab you measure out 44.04 grams of C8H16O8C8H16O8 for an experiment. How many mol is this? Give your answer to 2 decimal spaces.
3.How many molecules are in 0.410 moles of Neon gas?
4.Calculate the mass in grams of 1.40×10241.40×1024 molecules of Sulfur dioxide, SO2.
5.How many Chlorine atoms are in 3.64g of Barium chloride, BaCl2
6.Calculate the number of particles found in 233.99 grams of Al2(CO3)3.
7.A drink recipe calls for 200 grams of sugar, 2 liters of water, and 1 package of flavoring. While gathering the ingredients, the student realizes that there is only 100 grams of sugar available. How can the student sill make the drink so that it has the correct concentration?
They should use L of water and packages of flavoring.
8.
A chemical reaction is shown below. Which equation best describes the stoichiometry of the reaction?
- AB + C2 →→ AC + B2
- AB + 2C →→ AC + 2B
- 2AB + C2 →→ 2AC + B2
- 10AB + 5C2 →→ 10AC + 5B2
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hw3
1. in lab you need to measure out 0.46 mol of C7H14O7C7H14O7 for
an experiment....
In lab you measure out 44.82 grams of C4H8O4C4H8O4 for an experiment. How many mol is...
In lab you measure out 44.82 grams of C4H8O4C4H8O4 for an experiment. How many mol is this? Give your answer to 2 decimal spaces.
How many grams of xenon do you have if you measure out 0.41 mol of xenon?
How many grams of xenon do you have if you measure out 0.41 mol of xenon?
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Bio 121
I need to make (yeast fermentation) lab
report.
This is the lab experiment and results:
This is a guide to making the lab report:
General Biology BIO121 Yeast Fermentation Lab Introduction Organisms stay alive by the utilization of energy through metabolism. The energy acquiring pathways in photosynthesis convert radiant energy from the sun into the chemical bond energy of carbohydrates. This photosynthetic process is limited to the producers or autotrophs, which include plants, photosynthetic bacteria and some protists....
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2. How many mL of 0.100M NaOH would you need to titrate if you measured out...
2. How many mL of 0.100M NaOH would you need to titrate if you measured out 0.120 g of oxalic acid? Must show calculation. (5 pts) lying an unknown acid Objective: Identify an unknown diprotic acid by determining its molecular weight. Introduction: A diprotic acid is an acid that yields two H ions per acid molecule. Therefore, two moles of NaOH are need to react with every one mole of diprotic acid. The net reaction of a diprotic acid, H:X,...
DQuestion 3 1 pts How could you measure 3 moles of water? by measuring out 18.0098 mililiters of water in a graduated cylinder by measuring 54.0294 grams of water by measuring 18.0098 gram of water by measuring out 54.0294 mililiters of water in a graduated cylinder D Question 4 1 pts How many molecules are there in 29.777 grams of hydrogen peroxide? 52701 x 1023 molecules of hydrogen peroxide 29.777 x 103 molecules of hydrogen peroxide 0.876 x 1023 molecules...
Chemistry 172 pre-lab questions 1. ch aspirin was made from a lab experiment. Preparation of Aspirin A student would like to determine how much aspirin was made from The following is the lab data: Mass of flask 73.86 g Mass of flask & salicylic acid 77.88 g Mass of salicylic acid 4.02 g Mass of watch glass + filter paper 34.63 Mass of watch glass, filter paper & aspirin 38.29 g a. How much aspirin was made? b. The mass...
) Avogadro's Number calculations You carry out an experiment using a procedure similar to that described for lab 2, except that the metal you use is aluminum, which will form A3tions when dissolved. The power supply you use provides a current of 1.20 amperes. The aluminum originally weighs 12.486 g. After y passed current through the circuit for 5 minutes 50 seconds, the aluminum weighs 12.428g (Information which may or may not be useful: charge on an electron: 1.602 10-19...
111 Experiment 11 AN INSTRUMENTAL ANALYSIS OF POP FOR ITS PHOSPHORIC ACID CONTENT The Pre-Lab . A student performs an experiment for the determination of phosphoric acid (H)PO present in a cola soft drink. A 0.5 milliliters sample of cola is diluted to 125 mL. The measured absorbance is 0.262. Using a graph of absorbance versus H,PO concentration, the student determines that the diluted cola solution has a concentra- tion of 15.5 x 10 moles liter: a) Calculate the total...
Experiment 10: Empirical Formulas Post-lab: 1. In the experiment, how did you figure out the mass of any in your compound After heating minus before heating 2.8360 2.1.65g of 2. 1.651g of silver is combined with 0.1224g of oxygen. Find the empirical formula mole -0. 1.659 0.00 0.06 0.007 0.0 107.89-0 0.122490x Imole = 0.007 16.009 Empirical formula: 2.14 U O I 3. 7.00g of iron is reacted with 3.00g of oxygen. Find the empirical formula a exlmole -0.125 0.15...
Bio 121
I need to make (yeast fermentation) lab
report.
This is the lab experiment and results:
This is a guide to making the lab report:
General Biology BIO121 Yeast Fermentation Lab Introduction Organisms stay alive by the utilization of energy through metabolism. The energy acquiring pathways in photosynthesis convert radiant energy from the sun into the chemical bond energy of carbohydrates. This photosynthetic process is limited to the producers or autotrophs, which include plants, photosynthetic bacteria and some protists....
Report Sheet for Experiment 18: mini “Synthesis” Of An Antacid Congratulations! You have just been hired as a researcher by the PRUB Chemical Company. Because of the large number of people eating spicy foods (and often eating them too fast), this company has asked you to develop a new antacid. They have given you some information, but the rest you must discover for yourself. Your boss has suggested that aluminum hydroxide may be effective as an antacid. This compound can...
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