Apa itu Potassium hydroxide ?
1. Apa itu Potassium hydroxide ?
Potassium hydroxide itu kalium hidroksida (KOH) ...
2. pengertian larutan potassium hydroxide
Salah satu bahan kimia perindustrian utama yang digunakan sebagai bes dam berbagai - berbagai proses kimia :
penyalutan kopolimer ester akrilat
3. apa itu Potassium hydroxide (E 525)
kalo satau aku potasium itu sama kayak sianida
sorry kalo salah ^^Kalium hidroksida dapat ditemukan dalam bentuk murni dengan mereaksikan natrium hidroksida dengan kalium murni. Kalium hidroksida biasanya dijual sebagai pelet tembus, yang akan menjadi norak di udara karena KOH adalah higroskopis.
4. massa molekul relatif Oxalic acid Massa molekul relatif Klorin Massa molekul relatif Potassium bromide Massa molekul relatif dari zinc sulfate massa molekul relatif dari Salicylic acid Tolong bantu di jawab pliss
Jawaban:
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5. fungsi bahan kimia : 1.magnesium chloride 2.methylisothiazolinone 3.disodium phospate 4.biotin 5.butylated hydroxytoluene 6.acetic acid 7.myristic acid 8.lauric acid 9.potassium hydroxide 10.potassium chloride 11.sodium laureth sulfate 12.palmitic acid 13.glycol distearate 14.BHT 15.etidronic acid 16.capric acid 17.PEG-40 hydrogenated castor oil 18.phenoxyethanol 19.potassoum sorbate 20.serlcin 21.caprylyl glycol
magnesium klorida utk bahan dasar obat maag
6. explain the differences between acid and base
acid itu lebih powerful dari pada base
klu base dia bisa nge bantuin reaksi bahan kimia yang lain
7. 1. Group1 metals are highly reactive. They react with water to form metal hydroxides (an ionic compound containingthe metal and hydroxide) and hydrogen gas. Write the chemical equation forthe reaction when potassium is placed in a container of water. 2. Ammonia is formed when nitrogen gas reacts with hydrogen gas. Write the chemical equation forthis reaction. 3. Phosphorus pentachloride is used to manufacture important drugs and is used to manufacture acid chlorides. It reacts with water to yield or produce phosphoric acid (H,PO,) and hydrochloric acid. Write the chemical equation for this reaction. 4. Devise a plan on how to separate a mixture containing sugar, black pepperand water. State and describe the techniques for separating mixtures Jawab 1~4 ya
Jawaban:
Let me try hehe
1. K(s) + H2O(l) --> KOH(aq) + H2(g)
2. N2 (g) + 3H2(g) --> 2NH3 (g)
3. PCl5(aq) + 4H2O(l) --> H3PO5 + HCl
4. First because black pepperand doesnt mix weel with THE water you just need to filtration them, so water that contain sugar and black peperand being separated. and then with evaporation you separate water and sugar, first you heat the water so the water evaporate, and sugar become krystal sugar again but if you doesnt want to lose the water you needed to conect the container with small hose so water that have fase gas can flow to the others container that more cold and then back again become water that have fase liquid.
NB: I'M SORRY IF MY ENGLISH SO BAD AND MAKE YOU CRINGE. HOPE IT HELPFUL
Penjelasan:
8. 20.0 cm³ of hydrochloric acid is needed to neutralize completely 25.0 cm³ of 0.1 mol dm-3 sodium hydroxide solution in the conical flask. Calculate the molarity of the hydrochloric acid.
The molarity of the hydrochloric acid is 0,125 M
»EXPLANATION«In this case, you can use 2 ways to solve it: first, stoichiometrically, by first making a balanced reaction and then using moles to calculate molarity (mol/L); and second, which is simpler. Use the formula below:
Va × Ma × a = Vb × Mb × b
where Va is the volume of the acid, Ma is the molarity of the acid, and a is the valence of the acid; the same goes for bases.
Hydrochloric acid (HCl) and sodium hydroxide (NaOH) each have one valence. So, the calculation:
Va × Ma × a = Vb × Mb × b
20.0 cm³ × Ma × 1 = 25.0 cm³ × 0,1 M
20 cm³ × Ma × 1 = 2,5 mmol
Ma = 0,125 M
#GeniuzS05
#SAYIDI
9. If sulphuric acid and sodium hydroxide solution are mixed, what is the result? Write your answer in the form of word equation
NaOH+H2SO4=>Na2SO4+H2O
setarakan
2NaOH+H2SO4=>Na2SO4+2H2O
10. the reaction of potassium and silver with dilute acid
Penjelasan:
reaksi kalium dan perak dengan asam encer
11. IGCSE M/J 2018 The equation for the reaction between potassium carbonate and nitric acid is shown K₂CO₃ + 2HNO₃ => 2KNO₃ + H₂O + CO₂. Which volume of carbon dioxide is produced from 69 g of potassium carbonate ? A. 6 dm³ B. 12 dm³ C. 24 dm³ D. 48 dm³
Jawaban:
B. 12 dm³
Penjelasan:
jawabnya pakai bahasa indonesia ya
mol K₂CO₃ = gr/Mr = 69/138 = 0,5 mol
K₂CO₃ + 2HNO₃ => 2KNO₃ + H₂O + CO₂
0,5 mol -------------------------------------- 0,5 mol
"perb koefisien = perb mol"
menghitung volume bergantung keadaannya, bisa pada keadaan STP, RTP, pada PT terntentu, dan diukur pada gas lain. karena di soal tidak ada keterangan keadaannya, dan jika mengikuti angka" di opsi, kemungkinan keadaanya adalah RTP
V RTP CO₂ = mol × 24 = 0,5 × 24 = 12 L= 12 dm³
12. fungsi vitamin c,potassium dan folic acid pada jeruk adalah?
Salah satu contoh nyata khasiat buah jeruk manis adalah membunuh sel kanker berkat senyawa potassium dan folic acid di dalamnya
maaf kalo salah XD....
13. Color reaction of ascorbic acid with sodium hydroxide stability ?
Jawaban:
Tanya ama gurunya saya bukan suhu
YNTKTS
Jawaban:
maaf yah..................
14. word and balanced symbol equations for sodium hydroxide and hydrochloric acid
Jawaban:
- Natrium Hidroksida (NaOH)
- Asam Klorida (HCl)
Penjelasan:
word and balanced symbol equations for sodium hydroxide and hydrochloric acid?
Dalam Bahasa Indonesia:
Sodium Hydroxide = Natrium Hidroksida
dengan rumus molekul NaCl
Hydrochloric Acid = Asam Klorida
dengan rumus molekul HCl
Semoga Bermanfaat
#SemangatBelajar
15. find the volume of sodium hydroxide 0.1 M to neutralize 20 ml of sulfate acid 0.2M
Jawab :
Volume natrium hidroksida (NaOH) 0,1 M yang dibutuhkan untuk menetralkan 20 mL asam sulfat (H₂SO₄) 0,2 M adalah 40 mL.
Penyelesaian Soal :
Diketahui : [NaOH] = 0,1 M
[H₂SO₄] = 0,2 M
V H₂SO₄ = 20 mL
Ditanya : V NaOH ?
Jawab :
V₁ × M₁ = V₂ × M₂
20 mL × 0,2 M = V₂ × 0,1 M
V₂ = (20 mL × 0,2 M) / 0,1 M
V₂ = 4/ 0,1 mL
V₂ = 40 mL
∴ Kesimpulan banyaknya volume NaOH adalah 40 mL.
Pembahasan :
Pengertian Molaritas (M)
Konsentrasi merupakan jumlah zat terlarut yang ada terhadap jumlah pelarut tertentu atau terhadap jumlah larutan tertentu. (diasumsikan zat terlarut berwujud cair atau padat, sedangkan pelarutnya berwujud cair) Konsentrasi dapat diungkapkan dengan beragam cara, salah satunya yang paling sering dipakai, dan memang akan kita gunakan sekarang ini adalah Molaritas (M), atau konsentrasi molar. Molaritas adalah jumlah mol terlarut setiap liter larutan. Atau bias diungkapkan dengan rumus:
M = n/V
Keterangan : M = konsentrasi zat
n = mol zat terlarut
V = volume larutan (L)
Pengenceran
Proses pengenceran adalah proses yang dilakukan dengan mencampurkan pelarut yang lebih ukurannya dari suatu zat yang dilarutkannya. engenceran pada prinsipnya hanya menambahkan pelarut saja, sehingga jumlah mol zat terlarut sebelum pengenceran sama dengan jumlah mol zat terlarut sesudah pengenceran. Dengan kata lain jumlah mmol zat terlarut sebelum pengenceran sama dengan jumlah mmol zat terlarut sesudah penegenceran atau jumlah massa zat terlarut sebelum pengenceran sama dengan jumlah massa zat terlarut sesudah pengenceran.
Rumus :
V₁ × M₁ = V₂ × M₂
Keterangan :
M₁ = Molaritas larutan sebelum pelarutan/pengenceran
V₁ = Volume larutan sebelum pelarutan/pengenceran
M₂ = Molaritas larutan sesudah pelarutan/pengenceran
V₂ = Volume Molaritas larutan sesudah pelarutan/pengenceran
Pelajari lebih lanjut :
materi tentang pH asam Basa https://brainly.co.id/tugas/21157455
materi tentang pH asam Basa https://brainly.co.id/tugas/21176838
materi tentang pH asam Basa https://brainly.co.id/tugas/21126249
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Detail jawaban :
Kelas : 11
Mapel : Kimia
Bab : 5
Kode : 11.7.5
Kata Kunci : asam, basa, pH
16. A 20 ml solution of 0,0512 M oxalic acid was used to standardise an unknown solution of potassium permanganate. An average of 21,24 ml of permanganate was required. Calculate the concentration of the potassium permanganate solution
Jawaban:
0.0964 M
Penjelasan:
H2C2O4 = KMnO4
V1 × N1 = V2 × N2
20 × 0.0512 × 2 = 21.24 × M × 1
[tex]M = \frac{20 × 0.0512 × 2 }{21.24} \\ M = 0.0964 [/tex]
17. A student was given a sample of hydrochloric acid and asked to find its concentration in mol / dm. She titrated 25 cm' of the acid against a standard solution of sodium hydroxide of 0.1 mol dm. The average titre of sodium hydroxide was 30 cm. What is the concentration of the acid? A. 0.50 mol dm B. 0.12 mol dm C. 1.25 mol dm D. 1.0 mol dm
Jawaban:
c. 1.25 mol
Penjelasan:
semoga membantu
18. 1. Write the complete equation (use molecularformula) for the reactions of potassium with:a. Hydrochloric acidb. Sulfuric acidc. Nitric acidD. Name the salts that are produced ineach equation.2. What is the gas produced in the reaction ofmetal with acid? How can it be tested??
English
Question:
1. Please write the complete equation (using molecular formula) for the reactions of potassium with:
a. Hydrochloric acid
b. Sulfuric acid
c. Nitric acid
2. Please name the salts produced as the result of each equation!
3. What is the name of the gas produced through the reaction of metal with acid? How could that particular gas be tested?
Answers:
1. Molecular formula is a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
a. Hydochloric acid: HCL
b. Sulfuric acid: H₂SO₄
c. Nitric acid: HNO3
2. The salts produced as the result of each equation
a. Hydrochloric acid produces chloric salts.
b. Sulfuric acid produces sulfate salts.
c. Nitric acid produces nitric salts
3. The name of the gas produced through the reaaction of metal with acid is hydrogen gas.
The hydrogen gas ignites in air. If hydrogen gas presents in a test tube, if a lighted splint held near the test tube, its mouth ignites with a squeaky pop.
Bahasa Indonesia
Pertanyaan:
1. Tolong tuliskan persamaan lengkapnya (menggunakan rumus molekul) untuk reaksi kalium dengan:
a. Asam hidroklorik
b. Asam sulfat
c. Asam sendawa
2. Tolong sebutkan garam yang dihasilkan sebagai hasil dari setiap reaksi kimia tersebut!
3. Apa nama gas yang dihasilkan melalui reaksi logam dengan asam? Bagaimana gas tersebut dapat diuji?
Jawaban:
1. Rumus molekul adalah rumus yang memberikan jumlah atom dari setiap unsur yang ada dalam satu molekul senyawa tertentu.
Sebuah. Asam klorida: HCL
b. Asam sulfat: H₂SO₄
c. Asam nitrat: HNO3
2. Nama-nama garam yang dihasilkan sebagai hasil dari reaksi-reaksi kimia tersebut:
a. Asam klorida menghasilkan garam klorat.
b. Asam sulfat menghasilkan garam sulfat.
c. Asam nitrat menghasilkan garam nitrat
3. Nama gas yang dihasilkan melalui reaksi logam dengan asam adalah gas hidrogen.
Gas hidrogen menyala di udara. Jika gas hidrogen hadir di dalam tabung reaksi, jika bidai menyala di dekat tabung reaksi, mulutnya menyala dengan bunyi melengking.
19. Which of the following chemicals is a nonelectrolyte?a. molten naphthalenab. sodium hydroxide solutionc. aqueous sulfuric acid solutiond. aqueous ethanoic acid solutione. aqueous potassium iodide solution
The First thing that you must knew about Electrolyte Solution, Have the Criteria:
- The Solution that Perfect Ionized
- Strong Acid or alkali (have strong electrolyte) and weak Acid or alkali (have Weak Elektrolytes)
- Salt Solution (NaCl, KCl, and any others)
I thing Molten Napthalena Is the best Answer, Napthalena as an Organic coumpund has a Stabilized structur, so dificult to ionized.
I Hope that answer your question...
20. which of these compounds is not an electrolyte? a. sulphuric acid b. copper(II) chloride c. ammonium chloride d. carbon tetrachloride e. potassium hydroxide
d karena carbon tetrachloride tidak dapat membentuk ionD. Karbon tetraklorida
Senyawa tersebut memiliki ikatan kovalen, bukan ion
