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2021-05-14

What has 60 protons and electrons?

What has 60 protons and electrons?

Neodymium

How many electrons does X have?

19 electrons

How do I calculate the number of electrons in an element?

The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules.

  1. The number of protons in the nucleus of the atom is equal to the atomic number (Z).
  2. The number of electrons in a neutral atom is equal to the number of protons.

How do you calculate the number of atoms in class 11?

Hint: 1 mole of a substance contains 6.022×1023amount of that substance, which is Avogadro’s number. A mole is the amount of substance which has mass equal to the gram atomic mass or gram molecular mass. Formula used: Molecular mass=sum of atomic masses of all atoms present in that molecule.

What will be the mass of one c12 atom in Gram?

Atomic mass, the quantity of matter contained in an atom of an element. It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, 1.× 10−23 gram, which is assigned an atomic mass of 12 units. In this scale 1 atomic mass unit (amu) corresponds to 1.× 10−24 gram.

How many atoms are in 52g of he?

(iii) 52 g of He will contain 452×6. 023×1023=7. 82×1024 atoms.

What is difference between 52u and 52g?

ans: 52u represents the atomic mass (i.e., mass of ane atom of He) of He while 52g shows molar mass ( i.e., mass of 1 mole of He) of He

Which has maximum number of molecules?

Therefore, 2g H2has the maximum number of molecules.

Which one of the following will have the largest number of atoms?

Hence, 1g lithium has the largest number of atoms.

Which will contain large number of atoms 1 gram of gold or 1 gram of silver?

Answer. Answer: Hence, the number of atoms in 1g of silver are more than number of atoms in 1g of gold

Which will have largest number of moles?

2 gram of H2. 2 gram of H2 has the maximum number of moles.

How many grams of oxygen is present in 50g of CaCO3?

Calculate the number of oxygen atoms and its mass in 50 g of CaCO3. Solution — Molecular mass of CaCO3= 40+12+3×16 = 100 No. mole of CaCO3 = 50g/100g = 0.5 0.5 mole of CaCO3 contains 1.5 moles of oxygen atoms No. of oxygen atoms = 1.5 × 6.022×1023 = 9.033×1023 atoms Mass of Oxygen atoms = 1.5 × 16 = 24 g.

How many atoms of oxygen are present in 100 grams of caco3?

Answer Expert Verified 100 g of Calcium Carbonate (100,000 mg of Calcium Carbonate) has 3 moles of Oxygen atoms = 3 x 6.022 x 10^23 Oxygen atoms

How many grams of oxygen is present in 300g of caco3?

Explanation: Moles of calcium carbonate, 300⋅g100.09⋅g⋅mol−1 ≅ 3⋅mol . Given the elemental makeup, in such a quantity there are 3 moles of calcium, 3 moles of carbon, and 9 moles of oxygen

How many atoms of oxygen are present in 50 grams of caco3?

Hence there are 9.033 X 1023 atoms of oxygen in 50g of CaCO3

How many moles are present in 50 grams of calcium?

Thus 50 grams will be half a mole. Mark it as the brainliest answer if this helps

How many atoms are present in h2so4?

Sulfuric acid contains 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms.

How many atoms of oxygen are present in the product?

two atoms

How many atoms does c6h12o6?

Answer and Explanation: There are 24 atoms in one molecule of C6 H12 06. This chemical compound has 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen

How many oxygen atoms are in photosynthesis?

six atoms

How many phosphorus atoms are in sr3 po42?

Elemental composition of Sr3(PO4)2

Element Symbol #
Strontium Sr 3
Phosphorus P 2
Oxygen O 8

How many atoms are in sr3 po42?

Composition of Strontium Phosphate – O8P2Sr3

Element Symbol # of Atoms
Strontium Sr 3
Phosphorus P 2
Oxygen O 8

How many atoms are in 3ca3 po42?

Elemental composition of *3Ca3(PO4)2

Element Symbol #
Calcium Ca 9
Phosphorus P 6
Oxygen O 24

What is the H in CA c2h3o2 2?

Elemental composition of Ca(C2H3O2)2

Element Symbol Mass percent
Calcium Ca 25.3392
Carbon C 30.3749
Hydrogen H 3.8236
Oxygen O 40.4623