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What is the atomic mass of hydrogen-1?
The molecular mass of a molecule is just the sum of the masses of each atom in it. So if water has a mass of 18, and hydrogen has a mass of 1, and there are two hydrogens and one oxygen in water (it has formula H2O), than oxygen must weigh 16. That is: 18 - (2*1) = 16 You can also look at a periodic table, and it will tell you the mass of every element without doing any calculations! See the Web Links to the left of the answer.
What is the atomic mass of a human?
The atomic mass of a human is the sum of atomic masses of all the elements that make up the body. On average, a human body is composed mostly of oxygen, carbon, hydrogen, and nitrogen, with trace amounts of other elements. The total atomic mass of a human is about 30 kilograms.
What is the atomic number and atomic mass of this element?
Atomic number is the number of protons. Atomic mass is (mostly) the sum of the masses of the protons and neutrons (more or less).
How do you calculate the mass composition of C H O in aspirin?
First, find its empirical formula: C9H8O4 Then find the atomic masses of C, H and O: 12.01, 1.01, 16.00 Then multiply those numbers by the number of each of them in Aspirin: 12.01 X 9 = 108.09, 1.01 X 8 = 8.08, 16.00 X 4 = 64.00 Then add those three numbers up to get Aspirin's molar mass: 180.17 Then divide each of those three numbers by Aspirin's molar mass and multiply by 100%: C = 60.00%, H = 4.48%, O = 35.52
What is the atomic mass of a Hydrogen and oxygen atom?
If the atomic mass of water is 18 and the atomic mass of hydrogen is 1 then the atomic mass of oxygen is 16
What is the atomic mass of hydrogen-1?
The molecular mass of a molecule is just the sum of the masses of each atom in it. So if water has a mass of 18, and hydrogen has a mass of 1, and there are two hydrogens and one oxygen in water (it has formula H2O), than oxygen must weigh 16. That is: 18 - (2*1) = 16 You can also look at a periodic table, and it will tell you the mass of every element without doing any calculations! See the Web Links to the left of the answer.
Is the is the sum of the numbers of protons and neutrons in an isotope of the element?
Isotopes involve different atomic masses. It is sum of number of protons and neutrons.
What is the sum of the atomic masses of all the atoms in a molecule?
molecular mass
When a pair of hydrogen isotopes is fused is the mass of the product nucleus more or less the sum of the masses of the two hydrogen nuclei?
Because of conservation of matter the nucleus would weigh the same as the sum of the two isotopes.
What is the atomic mass of a human?
The atomic mass of a human is the sum of atomic masses of all the elements that make up the body. On average, a human body is composed mostly of oxygen, carbon, hydrogen, and nitrogen, with trace amounts of other elements. The total atomic mass of a human is about 30 kilograms.
Mass of a mole?
The molar mass of an element is its atomic weight in grams. The molar mass of a molecule or compound is the sum of the subscripts times the molar masses in grams. For example, the molar mass of hydrogen, H, is 1.00794g and the molar mass of oxygen, O, is 15.9994g. The molar mass of water, H2O, is (2 x 1.00794g) + (1 x 15.9994g O) = 18.01528g.
How many nuetrons are in the element oxygen?
There are 8 neutrons in oxygen element because the no. of electrons are equal to the number of protons and oxygen element contain 8 electrons.
What law is the mathematical relationship between the sum of the masses of the reactants and the sum of the masses of the products?
daltons law!
Which is usually the larger number the mass number of an element or the formula mass of a compound that contains the element?
The formula mass of a compound that contains the element would be a larger number than the mass number of the individual element. The individual element would simply be the mass of just that one atom, where as the compound would be the mass of that atom plus the other masses of the other atoms that make up the compound. ex. Oxygen-O has a mass number of about 16 grams. Water-H2O has a formula mass of 2 x mass of Hydrogen-H (about 1) + the mass of Oxygen-O 16 = 18 grams. A formula mass of 18 g is more than a mass number of 16 g.
Why is the reaction SO2 plus H2O to H2SO2 not balanced?
The reaction SO2 + H2O -> H2SO3 is not balanced because the sum of the atoms of each element is not equal on both sides of the chemical equation. Specifically, the hydrogen and oxygen atoms are unbalanced.
How do you determine the total number of elements in a chemical formula?
To determine the total number of elements in a chemical formula, you count the atoms of each element present in the formula. Each element is represented by its chemical symbol (e.g., H for hydrogen, O for oxygen). The sum of the atoms of each element gives you the total number of elements in the chemical formula.
How do you find the molar mass of H2O2?
Atomic weight of oxygen is 15,999. Atomic weight of hydrogen is 1,008. Two hydrogen atoms: 2,016. Two oxygen atoms: 31,998. The sum is the molar mass of hydrogen peroxide: 34,014.
