![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 06.03.2021 14:00, kajjumiaialome
The atomic mass of a chemical element is the number of protons + number of neutrons in each atom of that element—electrons are ignored. Examples The atomic mass of hydrogen (H) is 1 (1 proton) and that of helium (He) is 4 (2 protons + 2 neutrons).
The gram atomic mass of a chemical element is the atomic mass of that element in grams. Example The gram atomic mass of H is 1 gram and that for He is 4 grams.
Astounding Fact There are approximately 6 x 1023 atoms in the gram atomic mass of every known chemical element. Examples There are 6 x 1023 atoms in 1 gram of H and in 4 grams of He. Hence, there are 12 x 1023 atoms, or 1.2 x 1024 atoms, in 2 grams of H and in 8 grams of He.
Standard carbon is Carbon 12, abbreviated C-12. Its atomic number is 12 (6 protons and 6 neutrons) and its gram atomic mass is therefore 12 grams.
How many atoms are there in 96 grams of C-12? (Read the exponents carefully.)
(a) 1.2 x 1024 atoms (b) 12 x 1023 atoms (c) 4.8 x 1023 atoms
(d) 4.8 x 1024 atoms (e) 96 x 1024 atoms (f) none of the above
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:30, garrettrhoad
The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00, simplemickey123
What are the domain and range of f(x)= -log5(x+2)
Answers: 2
![image](/tpl/images/cats/mat.png)
Do you know the correct answer?
The atomic mass of a chemical element is the number of protons + number of neutrons in each atom of...
Questions in other subjects:
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 05.05.2020 20:08
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/es.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 05.05.2020 20:08