Question

please answer my questions​

Answer 1

Answer:

$\binom{?}{?} Given:-</p><p></p><p>\rm{Mass\:of\: Solute ( Naoh ) = 40g}MassofSolute(Naoh)=40g</p><p></p><p>\rm{Mass\:of\:Solvent ( water ) = 90g}MassofSolvent(water)=90g</p><p></p><p>To Find:-</p><p></p><p>The Mass Percent of Naoh Solution.</p><p></p><p>Formulae used:-</p><p></p><p>Mass by Mass % = \rm{\dfrac{Mass\:of\:Solute\times{100}}{Mass\:of\: Solution}}MassofSolutionMassofSolute×100</p><p></p><p>Now,</p><p></p><p>→ Mass of Solution = Mass of ( Solute + Solvent )</p><p></p><p>→ Mass of Solution = 40 + 90 → 130g</p><p></p><p>Therefore,</p><p></p><p>→ \rm{Mass\:by\:Mass\: Percentage = \dfrac{Mass\:of\:Solute\times{100}}{Mass\:of\: Solution}}MassbyMassPercentage=MassofSolutionMassofSolute×100</p><p></p><p>→ Mass by Mass % = \rm{\dfrac{ 40\times{100}}{130}}13040×100</p><p></p><p>→ Mass by Mass % = \rm{\dfrac{4000}{130}}1304000</p><p></p><p>→ Mass by Mass % = \rm{ 30.76}30.76</p><p></p><p>Hence, The mass Percent of Naoh Solution is 30.76%.</p><p></p><p>$

Answer 2

1. Hemis national Park= Jammu Kashmir
2. Bandhavgarh national Park= madhya Pradesh
3. Govind wildlife sanctuary = uttarakhand
4. periyar wildlife sanctuary= Kerala
5. ranthambore national Park= Rajasthan