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Chemistry
Chemistry
High School
if i have 21 liters of gas held art a pressure of 78 atm and temperature of 900k , what will be the volume of the gas if i decreased the pressure to 45atm and decrease the temperature to 750k
Chemistry
High School
how is the perodic table organized geology
Chemistry
High School
in a solution prepared by dissolving 0.100 mole of propanoic acid in enough water to make 1.00 l of solution, the ph is observed to be 2.832. the ka for propanoic acid (hc3h5o2) is:
Chemistry
College
Is a sample of oxygen gas at 70 degrees celsius twice as hot as a sample of oxygen gas at 35 degrees celsius
Chemistry
High School
Calculate the average rate of reaction for the generation of product in M/s from 0 to250 sec.
Chemistry
High School
you are preparing a standard aqueous solution for analysis by measuring a property of the solution that is directly related to a solution's concentration. unknown to you, the volumetric flask that you are using to make the solution has some residual water in it from the last time it was used. what effect will this have on the measured property of this solution?
Chemistry
High School
How many moles of Co2 are produced when 0.006 mold of Na2Co3 are used i need help setting it up and solving
Chemistry
College
Anybody know the answer to these questions?
Chemistry
High School
At 20C a gas has a volume of 16.00 L. What will the volume be at 175.0 C?
Chemistry
High School
a grape variety introduced in chile by european catholic missionaries is known by a varitey of names
Chemistry
High School
in the energy diagram for an sn1 reaction, the step shown in blue is rate- because this step has the highest activation energy. this step is -thermic; therefore, the transition state resembles the carbocation intermediate. the rate of an sn1 reaction is related to the of the carbocation intermediate. need help? review these concept resources.
Chemistry
High School
a student suggests that you could use spectroscopy to measure the amount of the solution that has reacted. which solution would you need to use to test this theory
Chemistry
High School
What is the difference between a bacteria cell and ahuman nervous cell?
Chemistry
High School
All right! And when thatimpetus reduces,motion also reduces. When the impetus isremoved, the objectstops moving!
Chemistry
High School
At 215C a gas has a volume of 18.00 L. What is the volume of this gas at 23.0C?
Chemistry
High School
which of the following aqueous solutions has the highest molar concentration of na (aq)?(assume each compound is fully dissolved in water.)group of answer choices3.0m nacl (sodium chloride)3.0m nac2h3o2 (sodium acetate)1.5m na2so4 (sodium sulfate)1.0m na3po4 (sodium phosphate)all of these solutions have the same concentration of na (aq).
Chemistry
High School
the shattered glass case at the scene of a jewelry store robbery was determined to be made of potash borosilicate glass, which has a density of 2.16 g/ml. a 2.573 g glass fragment was recovered from a suspect's clothing. when the fragment was placed into a graduated cylinder filled with water, 1.14 ml of the water was displaced. calculate the density of the glass fragment.
Chemistry
College
If all the coefficients in the already balanced equation are multiplied by 2, will the equation still remain balanced and will the multiplication affect the equilibrium constant? If you answer yes to any part of the question, please explain in detail.
Chemistry
College
Given the following data for water:Heat of fusion = 334 J/gHeat of vaporization = 2,256 J/gSpecific heat of solid = 2.09 J/g C)Specific heat of liquid = 4.184 J/g C)Specific heat of gas = 1.84 J/g C)Calculate how much energy is needed to change 100.0 grams of liquid water at 15.0 C to vapor at 125.0 C. (3 points)OaOb44,000 J89,400 J104,000 J266,000 J
Chemistry
High School
a stock solution of 320x10-6 m is used to prepare a dilute solution. if 0.90 ml is used to prepare 10.00 ml of a dilute solution, what is the concentration of the dilute solution? fill in blank (write answer in scientific notation to three signifcant figures. for example, 1.22e-3)
Chemistry
College
Use the periodic table to select the element from the drop-down menu that has the correct relative electronegativity.yo its been 3 minutes where my answer atMg>P>C >Br>
Chemistry
High School
Help what's the answer?
Chemistry
High School
a gaseous product has a mass of 2.34 g and occupies a volume of 0.854 l. the temperature in the laboratory is 302 k, and the air pressure is 1.04 atm. calculate the molar mass of the gas. (3 points) 44.0 g/mol 86.9 g/mol 65.3 g/mol 22.4 g/mol
Chemistry
High School
converting numbers to scientific notation?
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