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Problem- What is the volume occupied by 67. 5g of mercury, given that it's density is 13.5 g/cm^3 at 25 degrees Celsius and 1.0 atm?
A. 0.220
B. 5.19
C. 54.0
D. 911
Determine the solution for the above problem express your work in detail
if a piece of aluminum with mass 3.90 g and a temperature of 99.3 degrees celcius is dropped into 10.0 cm cubed of
Alpha helices are a type of secondary structure in proteins. what is the length of a 53-kDa single-stranded alpha-helical protein segment?
Calculate the volume of a sample of carbon monoxide at -20.°C and 328 torr if it occupies 3.65 L at 298 K and 725 torr. A sample of chlorine gas is confined in a 7.5 L container at 220. torr and 27°C. How many moles of gas are present in the sample
100 g soil was completely saturated with al3nbsp100 of the cec is occupied with al3.nbsp any excess al3was leached from
a solution is prepared by dissolving 4.21 g of a non electrolyte in 50 g of water. if the boiling point increases by .203 degree celsius, what is the molar mass of the solute? the boiling point elevation constant for water is .502 degree celsius p..
Calculate the minimum chloride ion concentration needed to initiate precipitation of PbCl2 from a solution that contains 0.01M Pb^2+ (aq).
calculate the specific heat of a metallic element if 478 j of energy are needed to raise the temp. of a 82.73 g sample
What is the pH of a solution made by adding 6.21 grams of sodium fluroide, NaF, to 391 mL of 0.317 M hydrofluoric acid, HF? (Assume no change in volume takes place.)
Steel wool wetted with vinegar is sealed within a balloon inflated with air. After several hours, what happens to the volume of the balloon?
A 24 L sample of a gas at fixed mass and constant temperature exerts a pressure of 3.0 atm. What pressure will the gas exert if the volume is changed to 16 L?
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after 100.0 mL of HNO3 have been added.
If 1.0*10^15 atoms of Radium produce an average of 1.373*10^4 atoms of Radium per second, how many liters of Radium, measured at STP, are produced per day by 3.5g of Radium?
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