0,15 moles of NaOH-------in------------1000ml x moles of NaOH------------in--------100ml x = 0,015 moles of NaOH
final volume = 150ml
0,015 moles of NaOH---in-------150ml x moles of NaOH--------------in-----1000ml x = 0,1 moles of NaOH
answer: 0,1mol/dm³ (molarity)
If **water **is added to 100 ml of a 0.15 M NaOH **solution **until the final volume of 150 ml. The **molarity **of the diluted solution is 0.1 mol. L.
What is molarity?
**Molarity **is the measure of the **concentration **of any solute per unit volume of the solution .
M o l a r i t y = v o l u m e o f so l u t i o n m o l e o f so l u t e
**Moles **of solute is 0.15 mol. L^-^1 \times 100 \times 10^-^3 \;L
Volume is **150 **ml
**Putting **the value
Molarity = \dfrac{0.15 mol. L^-^1 \times 100 \times 10^-^3 \;L}{150\; ml} =0.1 mol \times L
Thus , the **molarity **of the diluted solution is 0.1 mol. L.
**Learn **more about molarity
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The molarity of the diluted NaOH solution is 0.1 M. This was determined by calculating the number of moles in the original solution and then dividing that by the new total volume after dilution. The dilution does not change the number of moles, only the concentration in the larger volume.
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Jawaban:Diketahui: - Jumlah jari-jari lingkaran besar (R) dan kecil (r) adalah 15 cm: R + r = 15- Keliling lingkaran besar (K_besar) P cm lebih besar dari keliling lingkaran kecil (K_kecil): K_besar = K_kecil + P- P adalah nomor urut surat An-Nisa dalam Al-Quran: P = 4 Ditanya:Selisih luas lingkaran besar dan lingkaran kecil.Langkah-langkah Penyelesaian:1. Rumus Keliling Lingkaran: K = 2πr2. Substitusikan ke persamaan keliling:- K_besar = 2πR- K_kecil = 2πr- 2πR = 2πr + P- 2πR = 2πr + 43. Sederhanakan persamaan:- πR = πr + 2- πR - πr = 2- π(R - r) = 2- R - r = 2/π4. Kita punya dua persamaan:- R + r = 15- R - r = 2/π5. Selesaikan sistem persamaan linear. Tambahkan kedua persamaan:- (R + r) + (R - r) = 15 + 2/π- 2R = 15 + 2/π- R = (15 + 2/π) / 2- R ≈ (15 + 0.6366) / 2- R ≈ 7.8183 cm6. Substitusikan nilai R ke persamaan R + r = 15:- 7.8183 + r = 15- r = 15 - 7.8183- r ≈ 7.1817 cm7. Rumus Luas Lingkaran: L = πr²8. Hitung luas lingkaran besar dan kecil:- L_besar = πR² ≈ π (7.8183)² ≈ 191.89 cm²- L_kecil = πr² ≈ π (7.1817)² ≈ 162.08 cm²9. Hitung selisih luas:- Selisih = L_besar - L_kecil ≈ 191.89 - 162.08 ≈ 29.81 cm² Jawaban:Selisih luas lingkaran besar dan lingkaran kecil adalah sekitar 29.81 cm².