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Reil [10]
3 years ago
13

Do protons and neutrons attract?

Chemistry
1 answer:
skelet666 [1.2K]3 years ago
7 0

Answer:

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<em>Thus protons repel each other but are attracted to neutrons. What follows is an introduction to the more complete model of nuclear structure. The nucleons (neutrons and protons) of a nucleus, whenever possible, form spin pairs (proton-proton, neutron-neutron and proton-neutron).</em>

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What is the molality of a solution that contains 1.34 moles of NaCl in 2.47 kg of solvent
dsp73

The molality is 0.54 M when 1.34 moles of NaCl is present in 2.47 kg of solvent.

<u>Explanation:</u>

Molality is the measure of how much of amount of solute is dissolved in the solvent. So it is calculated as the ratio of moles of solute to the grams of solvent.

         \text {Molality}=\frac{\text {Moles of solute}}{\text {Mass of solvent}}

As in this case, the solute is NaCl and solvent is unknown. So the moles of solute is given as 1.34 moles and the mass of solvent is given as 2.47 kg.

Hence, \text { molality }=\frac{1.34}{2.47}= 0.54 \mathrm{M}

Thus, the molality is 0.54 M when 1.34 moles of NaCl is present in 2.47 kg of solvent.

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