Table of Contents

## Why is the atomic mass of carbon-12?

A neutral atom of Carbon-12 contains six protons, six neutrons, and six electrons; therefore, it has a mass number of 12 (six protons plus six neutrons).

**What is the molar mass of carbon-12?**

11.999

Click symbol for equation | |
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molar mass of carbon-12 | |

Numerical value | 11.999 999 9958 x 10-3 kg mol-1 |

Standard uncertainty | 0.000 000 0036 x 10-3 kg mol-1 |

Relative standard uncertainty | 3.0 x 10-10 |

### What is formula of atomic mass?

Atomic mass formula= Mass of protons + Mass of neutrons + mass of electrons. The relative atomic mass of an element is the total mass of the element’s naturally occurring isotopes relative to the mass of a 12C atom that means a relative atomic mass of exactly 12 is given to one atom.

**What is the symbol for carbon-13?**

13C

Carbon-13

General | |
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Symbol | 13C |

Names | carbon-13, C-13 |

Protons | 6 |

Neutrons | 7 |

## What is the mass of 1 carbon?

The mass of a single carbon atom is 1.994 x 10-23 g.

**Is atomic mass equal to molar mass?**

The molar mass of a compound is equal to the sum of the atomic masses of its constituent atoms in g/mol.

### Is carbon 13 a radioisotope?

Carbon-13 (13C) is a natural, stable isotope of carbon with a nucleus containing six protons and seven neutrons. As one of the environmental isotopes, it makes up about 1.1% of all natural carbon on Earth….Carbon-13.

General | |
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Protons | 6 |

Neutrons | 7 |

Nuclide data | |

Natural abundance | 1.109% |

**What is carbon 13 mass number?**

Carbon-13 (13C): The carbon isotope whose nucleus contains six protons and seven neutrons. six neutrons, resulting in an atomic mass of 12 amu. The nucleus of carbon-13 contains six protons and. seven neutrons, resulting in an atomic mass of 13 amu.

## What is the mass of 1 carbon-12 in grams?

1.992×10−23 gm.

**What is 1/12 of the mass of a carbon 12 atom?**

Recall that the atomic mass unit (amu) is defined as 1/12 the mass of a carbon-12 atom. Consequently we have the relation NA x 12 amu = 12 g Thus, a mole of carbon-12 atoms has a mass of just 12 g.

### How do you calculate the atomic mass of carbon?

The atomic mass of carbon would be 12.01 grams per mole of carbon atoms. To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons.

**What is the formula for calculating atomic mass?**

Atomic mass usually is reported with no units or as atomic mass units. The formula for atomic mass is given below. Atomic mass = Number of protons + Number of neutrons + Number of electrons. There are three methods to know the atomic mass, depending on one’s circumstances.

## How many atoms are present in exactly in 12 gram of carbon?

6.022 × 10 23 atoms are present in 12g of carbon-12 element. Concept: Concept of Atom