subject

Chemistry, 03.11.2020 17:00 mooredollie

An element has two common isotopes. 98.89% of its atoms have an atomic mass of 12.09 amu, whereas the other 1.11% have an atomic mass of 13.10 amu. Using the isotopic composition provided, calculate the average atomic mass of the element.

ansver

Answers: 3

Show answers

Another question on Chemistry

question

Chemistry, 22.06.2019 04:30

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Answers: 2

question

Chemistry, 22.06.2019 10:00

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

Answers: 2

question

Chemistry, 22.06.2019 13:00

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Answers: 3

question

Chemistry, 22.06.2019 17:00

The biosphere of the earth is made up of what compound? organic or inorganic?

Answers: 3

You know the right answer?

An element has two common isotopes. 98.89% of its atoms have an atomic mass of 12.09 amu, whereas th...

Questions

question

English, 16.08.2019 08:10

Which type of visual aid is showing the actual thing being discussed...

question

English, 16.08.2019 08:10

Aprince ought to have no other aim or thought, nor select anything else for his study, than war and its rules and discipline; for this is the sole ar...

question

Mathematics, 16.08.2019 08:10

Anumber is shown in word form.“six hundred fifty thousand, twelve"what is the number in expanded form?...

question

Business, 16.08.2019 08:10

Which of the following is not true of one-way analysis of variance experimental design? choose the correct answer below. a. using a rigorously contro...

question

Mathematics, 16.08.2019 08:10

Which of the following is not a procedure (either formal or informal) to use to identify the specific means that are different when the conclusion of...

question

Business, 16.08.2019 08:10

Which of the following is not an advantage of a repurchase? a. a repurchase announcement may be viewed as a positive signal by investors because repur...

question

Business, 16.08.2019 08:10

Which of the following journal entries correctly records the current month's activity where $60,000 of direct material and $17,000 of indirect materia...

question

Business, 16.08.2019 08:10

Which of the following pair of journal entries correctly records the current month's activity where $250,000 of raw material was purchased for cash an...

question

Business, 16.08.2019 08:10

Which of the following is true when computing cost per equivalent unit in a fifo process costing system? a. prior period costs are combined with costs...

question

Business, 16.08.2019 08:10

Which of the following pair of journal entries correctly records the current month's activity where the company had $21,030 in total factory labor cos...

question

Geography, 16.08.2019 08:10

Which of the following statements about the physical environment of the austral realm is false? new zealand has earthquakes and volcanoes, australia...

question

Business, 16.08.2019 08:10

Which of the following is not a self-employed retirement account? a. sep ira b. sem 403(c)c. individual 401kd. none of the above. all of the above ar...

question

Biology, 16.08.2019 08:10

Which of the following statements about hormones is correct? a. steroid and peptide hormones produce different effects but use the same biochemical m...

question

Business, 16.08.2019 08:10

Which of the following pair of journal entries correctly records the current month's activity where $125,000 of raw material was purchased for cash, a...

question

Business, 16.08.2019 08:10

Which of the following statements is correct? a. a major disadvantage of financing with preferred stock is that preferred stockholders typically have...

question

Physics, 16.08.2019 08:10

When light of wavelength 240 nm falls on a potassium surface, electrons having a maximum kinetic energy of 2.93 ev are emitted. find values for the fo...

question

Social Studies, 16.08.2019 08:10

Which of the following is true of values? values play a superficial role in a society's belief system. values are static and are impervious to change...

question

Medicine, 16.08.2019 08:10

Which of the following statements are true about the harm reduction approach? #1. harm reduction does not acknowledge the risks associated with psych...

question

Physics, 16.08.2019 08:10

Where again p is the phonon momentum, e is the photon energy and c is the speed of light. when you divide the photon energy found in #6 by the photon...

question

Chemistry, 16.08.2019 08:10

Which of the following chemical equations show(s) oxidation-reduction reactions? 1. mg(s) + i2(aq) --> mgi2(s)2. pb(clo4)2(aq) + 2 ki(aq) -->...

More questions: Chemistry Another questions

Questions on the website: 13722367