࠙໬Ꮫ㸦ゎ⟅㸧ࠚ
1
ၥ 1 (1) 㟁Ꮚᩘࡣ 2 + 8 + 18 + 1 = 29 ࡞ࡢ࡛ 29 Cu ࡛࠶ࡿࠋ3°㸦⟅㸧
1(2) 29 Cu ࡣ 11 ᪘ඖ⣲࡛㸪ྠ᪘ඖ⣲࡟ࡣ 47 Ag㸪79 Au㸪111 Rg ࡀ࠶ࡿࠋ1°㸦⟅㸧
2(3) 47 Ag ࡣ➨ 5 ࿘ᮇ࡛㸪ྠ࿘ᮇࡢᕼ࢞ࢫඖ⣲ࡣ 54 Xe ࡛࠶ࡿࠋᕼ࢞ࢫࡢ᭱እẆ㟁Ꮚᩘࡣ 2 He ௨እࡣ 8 ࡛࠶ࡿࠋ2°㸦⟅㸧
3
ၥ 2 (1) Ar ࡣ༢ཎᏊศᏊ࡛㸪ྠ࿘ᮇࡢ Cl ࡢ༢య࡛࠶ࡿ Cl2 ࡼࡾࡶศᏊ㔞ࡀᑠࡉ࠸ࡢ࡛㸪Ar ศᏊ㛫࡟ാࡃศᏊ㛫ຊ
ࡣ Cl2 ศᏊ㛫࡟ാࡃศᏊ㛫ຊࡼࡾࡶᙅࡃ࡞ࡾ㸪⼥Ⅼ࣭ἛⅬࡀప࠸ࠋྠ࿘ᮇ࡛ࡣཎᏊ␒ྕࡀ኱ࡁ࠸࡯࡝࢖࢜ࣥ
໬࢚ࢿࣝࢠ࣮ࡀ኱ࡁࡃ࡞ࡿഴྥࡀ࠶ࡿࡢ࡛㸪࢔ࣝࢦࣥࡢ᪉ࡀሷ⣲ࡼࡾࡶ኱ࡁࡃ࡞ࡿࠋ
3°㸦⟅㸧
4(2) ࠕ஝⇱ࡋࡓ✵Ẽ࠿ࡽ㓟⣲࡜஧㓟໬Ⅳ⣲ࢆ㝖࠸ࡓṧࡾࡢẼయࠖࡣ N2 ࡜ Ar ࠿ࡽᡂࡾ㸪ࡑࡢࣔࣝẚࢆ (1  x) : x࡜ࡍࡿࠋྠ ࣭ྠᅽ࡛ࡣᐦᗘ࡜ศᏊ㔞ࡀẚ౛ࡍࡿࡢ࡛㸪¶µ0.50
28 (1  x) + 40x = 28 × 1 +100
7!x=600࡜ồࡲࡿࠋࡼࡗ࡚㸪✵Ẽ඲య࡟ᑐࡍࡿ Ar ࡢయ✚ẚ㸦ࣔࣝẚ࡟➼ࡋ࠸㸧ࡣḟࡢࡼ࠺࡟࡞ࡿࠋ
779×× 100 % = 0.92 %600100㸦⟅㸧56°

ၥ 3 (1) 㸦⟅㸧

6104°
3°

7115°
1°

8124°
2°

9136°
1°

(2) ࢜ࢫࢺ࣡ࣝࢺἲ඲యࡢ໬Ꮫ཯ᛂᘧࡣ
NH3 + 2 O2 

HNO3 + H2 O࡜⾲ࡏࡿࡢ࡛㸪ồࡵࡿ◪㓟ࡢ㉁㔞ࡣḟࡢࡼ࠺࡟࡞ࡿࠋ
ºººº
1.0 × 103 g
1100×× 63 g/mol
×= 5.3 × 103 g
17 g/mol NH3 (mol)1 HNO3 (mol)70 HNO3 aq (g)HNO3 (g)
㸦⟅㸧

145°

153°

163°

1 ㄗࠉ CaCO3 
ၥ 4 (1) °CaO + CO2 ࡢࡼ࠺࡟⇕ศゎࡍࡿࠋ2 ㄗࠉ⅖Ⰽ཯ᛂ࡟ࡼࡾᶳ㉥Ⰽࢆ࿊ࡍࡿࠋ°3 ㄗࠉሷ⣲࡜཯ᛂࡋ࡚ࡉࡽࡋ⢊࡟࡞ࡿࡢࡣ Ca(OH)2 ࡛࠶ࡿࠋ°4 ṇࠉ CaCO3 + 2 HCl °
CaCl2 + CO2 + H2 O ࡞࡝ࡢࡼ࠺࡟㓟ሷᇶ཯ᛂࡍࡿࠋࡓࡔࡋ㸪ᕼ◲㓟࡜ࡣ୙⁐ᛶࡢሷࢆ⏕ࡌࡿࡢ࡛⁐ࡅ࡟ࡃ࠸ࠋ5 ㄗࠉ▼⅊Ỉࡣ Ca(OH)2 ࡢ㣬࿴Ỉ⁐ᾮ࡛࠶ࡿࠋ°6 ㄗࠉࢭࢵࢥ࢘ࡣ◲㓟࢝ࣝࢩ࣒࢘஧Ỉ࿴≀ CaSO4 · 2 H2 O ࡛࠶ࡿࠋ°7 ṇࠉ Ca(OH)2 + CO2 °

CaCO3 + H2 O ࡢ㓟ሷᇶ཯ᛂ࡟ࡼࡾ⏕ࡌࡿࠋ
8 ㄗࠉ X ⥺ࡢ㐀ᙳ๣࡜ࡋ࡚⏝࠸ࡽࢀࡿࡢࡣ◲㓟ࣂ࣒ࣜ࢘ BaSO4 ࡛࠶ࡿࠋ°㸦⟅㸧

174 ࣭°
7°

(2) ⁐ゎࡋࡓ CaCO3 ࡢ≀㉁㔞ࢆ x mol ࡜ࡍࡿ࡜㸪[Ca2+ ] = [CO3 2 ] =✚ࡢᐃ⩏ࡼࡾ㸪x mol= 10x mol/L ࡛࠶ࡿࠋ⁐ゎᗘ
0.100 L

10x mol/L × 10x mol/L = 6.4 × 105 (mol/L)2! x mol = 8.0 × 104 mol࡜ồࡲࡿࡢ࡛㸪⁐ゎࡋ࡚࠸࡞࠸ CaCO3 ࡢ㉁㔞ࡣḟࡢࡼ࠺࡟࡞ࡿࠋ

0.25 g  8.0 × 104 mol × 100 g/mol = 0.17 g4°㸦⟅㸧 18࠙ὀࠚ୚࠼ࡽࢀࡓ⁐ゎᗘ✚ࡢ್ࡣ኱ࡁࡍࡂࡿࠋᐇ㝿ࡣ 108 (mol/L)2 ⛬ᗘ࡛࠶ࡿࠋ

ၥ 5 (1) 㹼 (5) ࡢྛ཯ᛂࡣḟࡢࡼ࠺࡟࡞ࡿࠋ㓟໬ᩘࢆୗ⥺ࡢୗ࡟♧ࡋࡓࠋ(1) MnO2 + 4 HCl +4Cl2  + MnCl2 + 2 H2 O+2MnO2+4(2) 2 H2 O2 

O2  + 2 H2 O(3) MnSO4 + H2 S + 2 OH +2MnS  + SO4 2 + 2 H2 O+2(4) 2 KMnO4 + 5 H2 O2 + 3 H2 SO4 +7(5) 2 KBr + MnO2 + 2 H2 SO4 +4㸦⟅㸧

194°

205°

2 MnSO4 + K2 SO4 + 5 O2  + 8 H2 O+2Br2 + MnSO4 + K2 SO4 + 2 H2 O+2215°

222°

234°

2ၥ 1 ᐇ㦂 1 ࡼࡾ㸪༙㏱⭷ X ࡣỈ㸪Na+ ࡜ Cl ࢆ㏻㐣ࡉࡏࡿࡇ࡜ࡀ࡛ࡁ㸪᭱⤊ⓗ࡟ A ࡜ B ࡢ࡝ࡕࡽࡶ NaCl Ỉ⁐ᾮ࡟࡞ࡗ࡚࠸ࡿࠋᐇ㦂 2 ࡼࡾ㸪༙㏱⭷ Y ࡣỈࢆ㏻㐣ࡉࡏࡿࡀ㸪Na+ ࡜ Cl ࢆ㏻㐣ࡉࡏ࡞࠸ࡇ࡜ࡀศ࠿ࡿࠋᐇ㦂 3ࡼࡾ㸪༙㏱⭷ X ࡣࢱࣥࣃࢡ㉁ P ࢆ㏻㐣ࡉࡏ࡞࠸ࡇ࡜ࡀศ࠿ࡿࠋゝཬࡣ࡞࠸ࡀ㸪༙㏱⭷ Y ࡶྠᵝ࡜⪃࠼ࡽࢀࡿࠋ1 ࣭°21°°
㸦⟅㸧 2425ၥ 2 ᐇ㦂 2 ࡢ⤊஢᫬࡟࠾ࡅࡿ B ࡢᾮయ㸦NaCl Ỉ⁐ᾮ㸧ࡢᾐ㏱ᅽࢆ !s 0 ࡜ࡍࡿ࡜㸪ᾮ㠃ᕪ࠿ࡽḟࡢࡼ࠺࡟ồࡵࡽࢀࡿࠋ

!s 0 = 20.4 cm aq ×㸦⟅㸧262°

1.0 g/cm3
1.0 × 105 PacmHg/cm aq ×= 2.0 × 103 Pa
13.6 g/cm376.0 cmHg
270°

283°

ၥ 3 ᾮయϩࡢ NaCl ࡢࣔࣝ⃰ᗘࢆ Cs 㸪ᐇ㦂 2 ࡢ⤊஢᫬࡟࠾ࡅࡿ B ࡢᾮయ㸦NaCl Ỉ⁐ᾮ㸧ࡢࣔࣝ⃰ᗘࢆ Cs 0 ࡜ࡍࡿ㸦Ỉࡢᾐ㏱࡟ࡼࡾ⃰ᗘࡀపୗࡍࡿࡇ࡜࡟ὀពࡍࡿࡇ࡜㸧ࠋࣇ࢓ࣥࢺ࣍ࢵࣇࡢἲ๎ࡼࡾ㸪NaCl  Na+ + Cl ࡢ㟁㞳࡟ὀពࡋ࡚㸦R = 8.3 × 103 Pa · L/(mol · K)㸪T = 300 K㸧㸪

!s 0 = 2Cs 0 RT!s 0
1.97 × 103 Pa! Cs 0 === 3.95 × 104 mol/L
32RT2 × 8.3 × 10 Pa · L/(mol · K) × 300 K࡜ồࡲࡿࠋࡼࡗ࡚㸪ᾐ㏱๓ࡢࣔࣝ⃰ᗘ Cs ࡣCs =500 cm3 + 3.0 cm2 ×
500 cm320.4cm
2C 0 = 4.18 × 104 mol/Ls࡜ศ࠿ࡿࠋࡇࢀࢆ㉁㔞ࣃ࣮ࢭࣥࢺ⃰ᗘ࡟ኚ᥮ࡍࡿ࡜ḟࡢࡼ࠺࡟࡞ࡿࠋ

4.18 × 104 mol × 58.5 g/mol
× 100 % = 2.4 × 103 %103 mL × 1.0 g/mL
㸦⟅㸧

292°

304°

313°

ၥ 4 ᾮయϪࡢࢱࣥࣃࢡ㉁ P ࡢࣔࣝ⃰ᗘࢆ CP 㸪ᐇ㦂 3 ࡢ⤊஢᫬࡟࠾ࡅࡿ B ࡢᾮయ㸦NaCl ࡜ࢱࣥࣃࢡ㉁ P ࡢΰྜỈ⁐ᾮ㸧ࡢࣔࣝ⃰ᗘࢆ㸪ࡑࢀࡒࢀ Cs 00 㸪CP 00 ࡜ࡍࡿࠋᐇ㦂 3 ࡢ⤊஢᫬࡟࠾࠸࡚ᾮ㠃࡟ᕪࡀ࠶ࡿࡢࡣࢱࣥࣃࢡ㉁ PࡢᏑᅾ࡟ࡼࡿࡶࡢ࡛࠶ࡿ࠿ࡽ㸪ࡑࢀ࡟ࡼࡿᾐ㏱ᅽࢆ !P 00 ࡜ࡍࡿ࡜㸪ᾮ㠃ᕪ࠿ࡽ ၥ 2 ࡜ྠᵝ࡟ࡋ࡚!P 00 = 25.7 cm aq ×1.0 g/cm31.0 × 105 PacmHg/cm aq ×= 2.48 × 103 Pa
313.6 g/cm
76.0 cmHg

࡜ồࡲࡿࠋࣇ࢓ࣥࢺ࣍ࢵࣇࡢἲ๎ࡼࡾ㸪!P 00 = CP 00 RT!P 00
2.48 × 103 Pa! CP 00 === 9.95 × 104 mol/L
3RT
8.3 × 10 Pa · L/(mol · K) × 300 K࡜࡞ࡿࡢ࡛㸪ᾐ㏱๓ࡢࢱࣥࣃࢡ㉁ P ࡢࣔࣝ⃰ᗘ CP ࡣ

CP =500 cm3 + 3.0 cm2 ×500 cm325.7cm
2C 00 = 1.07 × 103 mol/LP࡜ศ࠿ࡿࠋࡇࡢ㉁㔞ࣃ࣮ࢭࣥࢺ⃰ᗘࡀ 7.2 % ࡛࠶ࡿ࠿ࡽ㸪ồࡵࡿศᏊ㔞ࢆ x ࡜ࡍࡿ࡜㸪ḟࡢ㛵ಀࡀᡂࡾ❧ࡘࠋ

1.07 × 103 mol × x g/mol
× 100 % = 7.2 %103 mL × 1.0 g/mL! x = 6.7 × 104㸦⟅㸧

326°

337°

344°

ၥ 5 (1) ࣇ࢓ࣥࢺ࣍ࢵࣇࡢἲ๎ࡼࡾ㸪 ᗘࡀ㧗ࡃ࡞ࡿ࡜ᾐ㏱ᅽࡣቑຍࡍࡿࠋᐇ㦂 1 ࡛ࡣ A ࡜ B ࡢ⃰ᗘࡣ࡝ࡕࡽࡶኚ
໬ࡋ࡞࠸ࡢ࡛㸪Ỉ఩ࡶኚ໬ࡋ࡞࠸ࠋᐇ㦂 2 ࡜ᐇ㦂 3 ࡛ࡣ㸪࡝ࡕࡽࡶ B ഃࡢᾐ㏱ᅽࡀቑຍࡍࡿࡢ࡛Ỉ఩ࡀୖ᪼ࡍࡿࠋ8°㸦⟅㸧 35(2) እẼᅽࢆ 2.0 ಸ࡟ࡋ࡚࠸ࡿࡀ㸪A ࡜ B ࡢ୧ᾮ㠃࡟࠿࠿ࡿᅽຊࡣ➼ࡋ࠸ࡢ࡛㸪ᐇ㦂⤖ᯝ࡟ᙳ㡪ࢆ୚࠼࡞࠸ࠋ
ࡼࡗ࡚㸪࡝ࡢᐇ㦂࡛ࡶỈ఩࡟ኚ໬ࡣぢࡽࢀ࡞࠸ࠋ
0°㸦⟅㸧 36• ᐇ㦂 1 ࡢ㏣ຍᐇ㦂࡛ᾮయϩࢆ A ࡟ຍ࠼ࡓ࡜ࡁ㸪A ഃࡢ⃰ᗘࡣ Cs 㸪B ഃࡢ⃰ᗘࡣ(3)

༙㏱⭷ X ࡣỈ㸪Na+ ࡜ Cl ࢆ㏻㐣ࡉࡏࡿࡢ࡛㸪᭱⤊ⓗ࡟ A ഃࡶ B ഃࡶ࡞࠸ࠋ

1Cs ࡟࡞ࡗ࡚࠸ࡿࡀ㸪
23Cs ࡟࡞ࡾ㸪Ỉ఩࡟ኚ໬ࡣ
4• ᐇ㦂 2 ࡢ㏣ຍᐇ㦂࡛ᾮయϩࢆ A ࡟ຍ࠼ࡓ࡜ࡁ㸪A ഃࡢ⃰ᗘࡣ Cs 㸪B ഃࡢ⃰ᗘࡣ Cs 0 ࡟࡞ࡗ࡚࠸ࡿࡀ㸪
Cs > Cs 0 ࡛༙㏱⭷ Y ࡣỈࡢࡳ㏻㐣ࡉࡏࡿࡢ࡛㸪B ഃ࠿ࡽ A ഃ࡟Ỉࡀᾐ㏱ࡋ㸪B ࡢỈ఩ࡣୗ㝆ࡍࡿࠋ• ᐇ㦂 3 ࡢ㏣ຍᐇ㦂࡛ᾮయϩࢆ A ࡟ຍ࠼ࡓ࡜ࡁ㸪A ഃࡢ⃰ᗘࡣ Cs 㸪B ഃࡢ NaCl ࡢ⃰ᗘࡣ Cs 00 㸪B ഃࡢ
ࢱࣥࣃࢡ㉁ P ࡢ⃰ᗘࡣ CP 00 ࡟࡞ࡗ࡚࠸ࡿࡀ㸪༙㏱⭷ X ࡣࢱࣥࣃࢡ㉁ P ࢆ㏻㐣ࡉࡏ࡞࠸ࡢ࡛㸪A ഃ࠿ࡽ B ഃ࡟Ỉࡀᾐ㏱ࡋ㸪B ࡢỈ఩ࡣୖ᪼ࡍࡿࠋ
7°
㸦⟅㸧 373ၥ 1 ࢧࣜࢳࣝ㓟࡜↓Ỉ㓑㓟ࡢ཯ᛂ㸦⃰◲㓟ࡣゐ፹㸧ࡣ࢔ࢭࢳࣝ໬࡛㸪≀㉁ A ࡣ࢔ࢭࢳࣝࢧࣜࢳࣝ㓟࡛࠶ࡿࠋࡲࡓ㸪ࢧࣜࢳࣝ㓟࡜࣓ࢱࣀ࣮ࣝࡢ཯ᛂ㸦⃰◲㓟ࡣゐ፹㸧ࡣ࢚ࢫࢸࣝ໬࡛㸪≀㉁ B ࡣࢧࣜࢳࣝ㓟࣓ࢳ࡛ࣝ࠶ࡿࠋࢧࣜࢳࣝ
㓟ࡢᕤᴗⓗ〇ἲ࡛ࡣࢼࢺ࣒ࣜ࢘ࣇ࢙ࣀ࢟ࢩࢻࢆ㧗 ࣭㧗ᅽୗ࡛஧㓟໬Ⅳ⣲࡜཯ᛂࡉࡏ࡚ࢧࣜࢳࣝ㓟ࢼࢺ࣒ࣜ࢘࡜ࡋ㸪ᕼ◲㓟ࢆస⏝ࡉࡏ࡚〇㐀ࡉࢀࡿࠋࡼࡗ࡚㸪≀㉁ C ࡣࣇ࢙ࣀ࣮࡛ࣝ࠶ࡿࠋ
249°°°
㸦⟅㸧 383940
ၥ 2 ࢧࣜࢳࣝ㓟ࢆ ROH㸦OH ࡣࣇ࢙ࣀ࣮ࣝᛶࣄࢻࣟ࢟ࢩᇶ㸧࡜⾲ࡍ࡜㸪ࡑࡢ࢔ࢭࢳࣝ໬ࡣ

ROH + (CH3 CO)2 O 

ROCOCH3 + CH3 COOH

࡜⾲ࡏࡿࠋồࡵࡿ (CH3 CO)2 O ࡢ㉁㔞ࡣḟࡢࡼ࠺࡟࡞ࡿࠋ

4.6 g
1× × 102 g/mol = 3.4 g
138 g/mol
1㸦⟅㸧

413°

424°

ၥ 3 (1) ≀㉁ D ࡢศᏊ㔞ࢆ x ࡜ࡍࡿ࡜㸪ḟࡢ㛵ಀࡀᡂࡾ❧ࡘࠋ

6.30 gx g/mol
0.940 K = 1.85 K · kg/mol ×
0.100 kg
! x = 124
㸦⟅㸧

431°

442°

454°

(2) ≀㉁ D ࡢศᏊᘧࢆ Cn H2m Ol ࡜ࡍࡿ࡜㸪᏶඲⇞↝ࡢ໬Ꮫ཯ᛂᘧࡣ
Cn H2m Ol +2n + m  lO2 
2n CO2 + m H2 O࡜⾲ࡏࡿࡢ࡛㸪ḟࡢ㛵ಀࡀᡂࡾ❧ࡘࠋ

37.2 mg
92.4 mg×n=124 g/mol
44 g/mol
37.2 mg21.6 mg×m=124 g/mol
18 g/mol12n + 1.0 × 2m + 16l = 124! n = 7, m = 4,l=2ࡼࡗ࡚㸪≀㉁ D ࡢศᏊᘧࡣ C7 H8 O2 ࡛࠶ࡾ㸪⤌ᡂᘧࡶ C7 H8 O2 ࡛࠶ࡿࠋ782°°°
㸦⟅㸧 464748

89.6 mL= 4.00 mmol ࡞ࡢ࡛㸪≀㉁
22.4 L/mol
0D ࡟ࣄࢻࣟ࢟ࢩᇶࡣ 2 ࡘ࠶ࡿࡇ࡜ࡀศ࠿ࡿࠋ≀㉁ D ࡢ໬Ꮫᘧࢆ R (OH)2 ࡜⾲ࡍ࡜(3) ≀㉁ D 4.00 mmol ࡜ Na ࢆ㐣୙㊊࡞ࡃ཯ᛂࡉࡏ࡚Ⓨ⏕ࡋࡓỈ⣲ࡀ

R0 (OH)2 + 2 Na R0 (ONa)2 + H2 ࡜࡞ࡿࠋศᏊᘧࢆ⪃៖ࡍࡿ࡜㸪≀㉁ D ࡣ࣋ࣥࢮࣥ⎔࡟ CH2 OH ࡜ OH ࡀ࢜ࣝࢺࡢ㓄⨨࡛⤖ྜࡋ࡚࠸ࡿ໬ྜ≀࡛࠶ࡿࡇ࡜ࡀศ࠿ࡿࠋ3°
㸦⟅㸧 49ၥ 4 ཯ᛂϪ࡛ࡣ CH2 OH ࡀ COOH ࡟ኚ໬ࡋ࡚࠸ࡿࡢ࡛㸪཯ᛂϪࡣ㓟໬࡛࠶ࡿࠋ5°㸦⟅㸧 50ၥ 5 ≀㉁ A 㹼 D ࡟ሷᇶᛶࡢࡶࡢࡣ࡞࠸ࡢ࡛㸪ึࡵ࡟ᕼሷ㓟ࢆຍ࠼࡚ࡶỈᒙ࡟⛣ࡿࡶࡢࡣ࡞࠸ࠋḟ࡟㸪࢚࣮ࢸࣝᒙ࡟NaOH Ỉ⁐ᾮࢆຍ࠼ࡿ࡜㸪≀㉁ A 㹼 D ࡣ඲࡚㓟ᛶ࡞ࡢ࡛୰࿴ࡉࢀ࡚ሷ࡜࡞ࡾ㸪඲࡚ሷࡢᙧ࡛Ỉᒙ࡟⛣ࡿࠋࡑࡇ࡟ CO2 ࢆ㏻ࡌࡓᚋ࢚࣮ࢸࣝࢆຍ࠼ࡿ࡜㸪Ⅳ㓟ࡼࡾࡶᙅ࠸㓟࡛࠶ࡿࣇ࢙ࣀ࣮ࣝ㢮㸦≀㉁ B 㹼 D㸧ࡀ㐟㞳ࡋ㸪࢚࣮ࢸࣝᒙ࡟ᚓࡽࢀࡿ㸦≀㉁ B 㹼 D ࡀ࠸ࡎࢀࡶ࢝ࣝ࣎࢟ࢩᇶࢆᣢࡓ࡞࠸ࡇ࡜ࢆ☜ㄆࡍࡿࡇ࡜㸧ࠋⅣ㓟ࡼࡾࡶᙉ࠸㓟࡛࠶ࡿ࢝ࣝ࣎ࣥ㓟㸦≀㉁ A㸧ࡣ㐟㞳ࡏࡎ㸪ሷࡢᙧࡢࡲࡲỈᒙ࡟࡜࡝ࡲࡿࠋ
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