Determine the age of the rock

Assignment Help Chemistry
Reference no: EM1395057

Q. Using a sample of gas has a mass of 38.7mg. Calculate the molar mass if its volume is 228mL at a temperature of 57°C and a pressure of 832torr?

Q. Determine the age of the rock if the concentration of the radioactive isotope potassium-40 in a rock sample is found to be 3.125%. ?

Reference no: EM1395057

Questions Cloud

What are the parent and daughter concentrations : A rock contain 3.2 grams of a radioactive isotope, uranium-235, . Determine what was the original amount of uranium-235 in the rock If the rock has undergone 2.75 half lives, and how old is the rock?
Explain colonial merchants to america-s break with england : Explain the role of each of the following groups in events which led to America's break with England: colonial merchants, Virginia planters.
Ethical practices in statistics : The statistical research was done primarily through the internet from governmental regulated sources. Estimates were used in consideration of absence of actual information.
Determine the complementary for the dna strand : Would you expect cancer to arise more often in types of cells that divide frequently (i.e. skin cells) or in types of cells that divide rarely or not at all
Determine the age of the rock : Using a sample of gas has a mass of 38.7mg. Calculate the molar mass if its volume is 228mL at a temperature of 57°C and a pressure of 832torr?
Write summary- correct grammar : The starving children eat the house, and are captured by a witch whose house it is. After being captured by the witch, the children are stuffed to be eaten. The children kill the witch, finds witches wealth, escapes, and find their way back home, ..
Slack for moms working flextime : What is the probability that 25% or fewer male employees will indicate that they have to pick up the slack for moms working flextime?
Compute the value of absolute zero : A student has invented a new temperature scale, the Zuban scale ,In common with the Celsius, Kelvin and Fahrenheit scales, it is a linear scale.
Lack of randomization : A major problem resulting from the lack of randomization in a cohort study is: the possibility that a factor that led to the exposure, rather than the exposure itself, might have caused the disease.

Reviews

Write a Review

Chemistry Questions & Answers

  Evaluate which processes represent chemical reactions

Identifying and balancing the different types of chemical reactions. Evaluate which processes represent chemical reactions.

  Questions on chemical equations

Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.

  What is the molar heat of vaporiza-tion of c6h6

What is the molar heat of vaporiza-tion of C6H6 if the vapor pressure of C6H6 is 120 torr at 27 degree celsius, and its normal boiling point is 80.1 degree celcius.

  Determine the boiling point of an aqueous solution

Determine the boiling point of a 1.5m aqueous solution of fructose.

  Application of ideal gas law

Application of ideal gas law - How high can you raise the temperature of the gas without bursting the vessel?

  What time will it take for the reaction

At 25 degree celcius ,the second order reaction NOCL(g) - NO (g) + 1/2 CL2 (g) is 50 % complete after 5.82 hours when the initial concentration of Nitrosyl chloride is 4.46 ml/L.what time will it take for the reaction to be 75 % complete.

  Determine what is the mass in gms

Phosphorus is combined with chlorine to give PClz a gaseous compound .calculate the value of z If you start with 2.097g of P and isolate 9.298g of PCLz .

  Testing the bounds of natural fibres

The purpose of this experiment is to find out which fabric out of polyester, polypropylene, cotton and wool is the most suitable to make a sling back chair.

  What will be this value in si units

The density of mercury is 13.595 g cm -3  . What will be this value in SI units? Give the SI units and their symbols for the following physical quantities:

  Find concentration of original hydrofluoric acid solution

Assemble the alcohols (have the formula of C4H10) in the order of increasing reactivity with concentrated HCl.

  Fundamentals of acids and bases

Fundamentals of acids and bases - Water self ionizes to a small extent creating equal concentrations of hydronium and hydroxide ions. Find the molar concentration of these ions in water at 25 o C?

  Calculate the amount of sucrose

Pyridine(C5H5N) is a weaker base in H2O than 2,6 lutidine (dimethylpyridine), but we observe that the pyridine-BF3 complex is more stable than the comparable lutidine-BF3. Explain the reason for this inversion in stabilities.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd