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General Chemistry Recently Posted Questions

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Scin131 intro to chemistry
Select a source of chemistry information from the open web (the topic can be any topic related to chemistry or that of your research topic). Evaluate the source and explain why it is or is not a cred …
Chemistry / General Chemistry 2019-03-14 Answer Now 0 Yes $10.00 View
Experiment 2: Charles's Law (Part 1)
In this experiment, you will explore the relationship between temperature and volume in a closed system.     Materials      …
Chemistry / General Chemistry 2018-10-11 Answer Now 1 Purchase Now Yes $20.00 View
Experiment 3: Charles’ Law (Part 2)
Using the air in a flask, measure the change in volume with temperature.   Materials  2-Hole Rubber stopper 250 mL Erlenmeyer flask Thermometer 100 mL Graduated cylinder 10 mL Syringe …
Chemistry / General Chemistry 2018-10-11 Answer Now 1 Purchase Now Yes $30.00 View
Experiment 1: Ideal Gas Law - Finding Percent H2O2 with Yeast
Once the number of moles of O2 gas is calculated, the percent of H2O2 present in the solution can be determined.       Materials (1) 250 …
Chemistry / General Chemistry 2018-10-11 Answer Now 1 Purchase Now Yes $35.00 View
CHEMISTRY 151 - Calculate the mole fraction of bromine in water
Calculate the mole fraction of bromine in water in both solutions below, and the molality of bromine in both solutions presuming that the density of water is 1 g/cm3.The halogen bromine (Br2) is a liq …
Chemistry / General Chemistry 2018-08-08 Answer Now 1 Purchase Now Yes $4.00 View
CHEMISTRY 101 - Consider the following reaction occurring in water
Consider the following reaction occurring in water:?+2??2?+?If the initial rate of formation of compound D is 4.1 x 10-5 Ms-1 what is the initial rate of formation of product C and what is the initi …
Chemistry / General Chemistry 2018-08-08 Answer Now 1 Purchase Now Yes $3.00 View
CHEMISTRY 30360 - Used the formula pH
Used the formula pH = -log[H3O+] to find the theoretical [H3O+] for distilled water, original buffer solution, distilled water with added 6 M HCl, buffer solution with added 6 M HCl, distilled water w …
Chemistry / General Chemistry 2018-08-08 Answer Now 1 Purchase Now Yes $4.00 View
CHEM 101 - what will the final temperature be in kelvin
If the volume of a balloon at 24oC changes from 4L to 7,547mL, what will the final temperature be in kelvin? The pressure doesn't change and the amount of gas in the balloon doesn't change. …
Chemistry / General Chemistry 2018-08-07 Answer Now 1 Purchase Now Yes $3.00 View
CHEM 151 - The halogen bromine (Br2) is a liquid at room temperature
The halogen bromine (Br2) is a liquid at room temperature (25 ?C) and somewhat soluble in water. A saturated solution of Br2 contains 3.3 x 10-4 g Br2 dissolved in 1 g H2O at room temperature. On th …
Chemistry / General Chemistry 2018-08-06 Answer Now 1 Purchase Now Yes $5.00 View
CHEM 151 - The freezing point depression constant for water
The freezing point depression constant for water is 1.86 ?C/m. An aqueous solution of magnesium chloride (MgCl2) is found to have a freezing point of -2.31 ?C. Calculate the molality of MgCl2 in t …
Chemistry / General Chemistry 2018-08-06 Answer Now 1 Purchase Now Yes $4.00 View
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