Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETChemistryStructure of Atom

Find (i) the total number and (ii) the total mass of protons in 34 mg of NH 3 at STP. Will the answer change if the temperature and pressure are changed?

Options

  1. A(i) 1.204 × 10 22 protons (ii) 3.425 × 10 –5 kg
  2. B(i) 1.204 × 10 22 protons (ii) 2.015 × 10 –5 kg
  3. C(i) 5.125 × 10 22 protons (ii) 2.015 × 10 –5 kg
  4. D(i) 5.125 × 10 22 protons (ii) 3.425 × 10 –5 kg

Correct answer

B. (i) 1.204 × 10 22 protons (ii) 2.015 × 10 –5 kg

Step-by-step solution

Correct Option is : (B) (i) 1.204 × 10 22 protons (ii) 2.015 × 10 –5 kg

Practice Structure of Atom on Quantrex Academy →

More from Structure of Atom

Identify the pair of atoms of elements as isotones from the following. 2026Which of the following elements has an electronic configuration, [ Ar ] 4s^2 ? 2026Calculate the energy per mole of photons of red light with a wavelength 750 nm. [ h = 6.626 10⁻³⁴ Js, C = 3 10^8 m/s.] 2026Calculate the energy associated with an electron in the first orbit of hydrogen atom? 2026Find the wave number of the 4^ th line in the Lyman series of H spectrum. (R = Rydberg constant) 2026Calculate the de-Broglie wavelength of an electron having velocity 1000 ms ⁻¹ [ h = 6.626 10⁻³⁴ js , mass of an electron = 9.1 10⁻³¹ kg ] 2026How many total number of s and p electrons are respectively present in Cl ^- ? 2026Visible light has a wavelength of 700 nm. Calculate its frequency in hertz. 2026 Full Structure of Atom list All NEET PYQs