What is abundance of each one

Assignment Help Chemistry
Reference no: EM13113655

Rb has two naturally occurring isotopes 85Rb and 87Rb, with masses 84.9118 amu and 86.9092 amu, respectively. The average atomic mass is 85.468 amu. What is abundance of each one?

Reference no: EM13113655

Questions Cloud

Test of hypothesis for difference in proportions : A random sample of 200 workers from Factory A showed that 130 were satisfied with their job. Formulate and test the appropriate hypotheses at the 1% level of significance
Find the hypotheses to be tested : All college males and females who worked last summer. We conjectured before seeing the data that men are more likely to work. The hypotheses to be tested are?
Explain should fraud in the private sector be prosecuted : Explain Should fraud in the private sector be prosecuted to the same extent as in the public sector
What does the doctor automatically know about the father : In humans, migraine is due to a dominant gene (M). A normal-visioned woman who has never suffered from migraines takes her daughter to a doctor for an examination. In the course of the examination, the doctor discovers that the girl is color-blind..
What is abundance of each one : Rb has two naturally occurring isotopes 85Rb and 87Rb, with masses 84.9118 amu and 86.9092 amu, respectively. The average atomic mass is 85.468 amu.
Computing p-value for coke fill levels : Assume that cans of Coke are filled so that the actual amounts have a mean of 12.00 oz and a stand. dev. of 0.11 oz. Find the P that a sample of 36 cans will have a mean amount of at least 12.19 oz.
Explain should fraud in the private sector be prosecuted : Explain Should fraud in the private sector be prosecuted to the same extent as in the public sector
List the blood types of the offspring of a father : In humans, blood types A and B are codominant with type O being recessive. List the blood types of the offspring of a father with blood type AB and a mother with type O.
Find null hypothesis and the observed distribution : significance level α = 0.01 and a degree of freedom = 11. In this situation, the null hypothesis that the observed distribution is the same as the expected distribution is?

Reviews

Write a Review

Chemistry Questions & Answers

  Determine the mass of al

Determine the mass of Al is needed to combine with 3.077 kilo grams of Ammonium per chlorate NH 4 ClO 4 for this reaction? express your answer in units of g

  Determine what would be its temperature after absorption

Determine what would be its temperature after absorption of 9.4 * 10-2 kWh of heat If 1.45 L of water is initially at 25.0 °C,?

  Determine the relative amount of electric energy

Compare a refrigerator set at four degree celcius and a freezer set at minus twenty degree celsius, both of which are operating in the room at the temperature of eighteen degree celsius.

  What volumes of the stock solution will you have to pipet

What volumes of the stock solution will you have to pipet into the flasks to prepare standards and What mass of gas does the container contains If the volume of a container

  Hydrochloric acid to the buffer solution

what are the pH and the change in pH after the addition of 0.054 mol hydrochloric acid to the buffer solution?

  Determine the partial pressure of o2

A gas sample containing N2 and O2 was found to contain 72% N2. If the pressure of the sample was 2.0 atm, what is the partial pressure of O2?

  Compute molar composition and volumetric flow rate of gas

An ore containing 24% solid inert and 76 mol% iron pyrites (FeS2) is roasted in the presence of dry air at 500 °C and 1 atm. Considering the given reactions.

  Calculate the molar mass of the liquid

calculate the estimated ratio of the protonated form of acetylsalicylic acid to the deprotonated form of aspirin at equilibrium in the stomach? acetylsalicylic acid(Aspirin) is a weak acid with a pKa = 3.4, Stomach acid has pH = 1.4.

  Calculate the root mean square speed

Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor

  Finding the concentration of nacl in final solution

During the course of an experiment, a 0.300 M NaCl solution with an initial volume of 25.0 ml is diluted to a total final volume of 26.0 ml. What is the concentration of NaCl in the final solution?

  Identify the spectator ion in reaction

Write the balanced net ionic equations for the reactions that occur in each of the given cases as. Cr2(SO4)3(aq) + 3(NH4)2CO3 (aq) = Cr2(CO3)3 ( s) + 3(NH4)2SO4 ( aq).

  Determine value for the rate of formation of hcl

Determine value for the rate of formation of HCl during the same interval  of 3 seconds If the rate of disappearance H2 = -0.13 M/s at this specific time?

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