Cách phát âm "pka" trong tiếng Anh
pka
Nghe người bản ngữ nói pka theo ngữ cảnh trong các đoạn video thực tế
hydrogen adjacent to the carbonyl to make the enolate, its pKa is 12 units higher, so that the equilibrium lies completely to form the enolate anion. higher, so that the equilibrium lies completely to form the
Linguistic Pronunciation Masterclass: “pka”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
pka
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
As a single-syllable word, "pka" receives full primary stress when spoken in isolation, though it may take a reduced weak form in connected speech when acting as a function word.
Common Pronunciation Traps & Learner Mistakes
The Trap: Single-syllable words like "pka" carry primary acoustic prominence in isolation, but can be swallowed in rapid connected speech.
How Native Speakers Say It: Sustain vowel clarity without rushing into the trailing consonant. Elevate pitch slightly when "pka" carries the primary contrast or new information in a sentence.
Connected Speech & Natural Conversational Flow
When followed by a vowel, insert a subtle glide (/w/ or /j/) to connect into the subsequent word without an abrupt glottal stop.
In natural sentences, avoid over-stressing "pka" unless it conveys the core contrast or focal point of your message.
Authentic Spoken Quotes from Native Video Context
“its pKa is 12 units higher, so that the equilibrium lies completely to form the enolate anion.”— YaleCoursesWatch clip
“pKa equals minus log of Ka.”— MIT OpenCourseWareWatch clip
“pka of our weak acid which is just a negative log of of its equilibrium”— Khan AcademyWatch clip
“pka of a buffer to be as close to 7.”— Ninja NerdWatch clip
“The pKa of dimethylacetamide, or DMA, is a whopping 30.”— Native SpeakerWatch clip
“hell PKA buys the scrap metal from more than 100 suppliers each morning she tells them the price per ton she's willing to pay the price of the scrap”— Native SpeakerWatch clip
Luyện phát âm từ “pka”
Nghe người bản xứ phát âm, ghi âm giọng nói của bạn khi lặp lại câu vào micro và nhận điểm chính xác từng từ trong thời gian thực.
its pKa is 12 units higher, so that the equilibrium lies completely to form the enolate anion.
Nghe theo ngữ cảnh: “pka”
428 đoạn clipThe Tiếng Anh word “pka”. Phonologically, it consists of 1 syllable (pka), pronounced as a single stressed monosyllable. Grammatically, “pka” functions as a preposition. SayItVid indexes 428 authentic Tiếng Anh video clips demonstrating how native speakers articulate “pka” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from YaleCourses, MIT OpenCourseWare, Khan Academy.
Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)
- 🇺🇸 USYaleCoursesClip #1 · @11:55
“hydrogen adjacent to the carbonyl to make the enolate, its pKa is 12 units higher, so that the equilibrium lies completely to form the enolate anion. higher, so that the equilibrium lies completely to form the”
- 🇺🇸 USMIT OpenCourseWareClip #2 · @36:51
“its pKa as well, not just its Ka. And you remember the relationship here. So, pKa equals minus log of Ka. And so, we saw, you know, with the pKw before. So, these are the the same expressions. And so, if you have a small value, less than”
- 🇺🇸 USKhan AcademyClip #3 · @13:05
“is equal to the pH now this is just the pka of our weak acid which is just a negative log of of its equilibrium constant so this is just the pka and the minus log of ha over a if you what we”
- 🇺🇸 USNinja NerdClip #4 · @31:30
“I'd want in my bloodstream to keep it at that part part right there I'd want the pka of a buffer to be as close to 7. 4 as possible but we even give it a nice little cushion there so we say the best buffer is”
- 🇺🇸 USClip #5 · @5:26
“the oxygen of the carbonyl has quite a bit of negative character. The pKa of dimethylacetamide, or DMA, is a whopping 30. We're not gonna get enolates very easily from these!”
Định nghĩa & Ý nghĩa: “pka”
- Initialism of professionally known as.
- Initialism of previously known as.
Câu ví dụ trong ngữ cảnh (2)
- “its pKa is 12 units higher, so that the equilibrium lies completely to form the enolate anion.”
- “pKa equals minus log of Ka. And so, we saw, you know, with the pKw before. So,”
Cụm từ và cấu trúc thông dụng
Phát âm: “pka”
- Âm tiết:
- pka
- Nghe theo ngữ cảnh
- pka
Các từ có phát âm giống nhau (Từ đồng âm)
Âm thanh đặc trưngKhông có từ đồng âm chuẩn nào được ghi nhận cho "pka" .
Các câu hỏi thường gặp về pka
Từ "pka" có nghĩa là gì?
Initialism of professionally known as.
Làm thế nào để nghe từ "pka" trong câu thực tế?
Trang này có 428 ví dụ video thực tế của từ "pka" kèm phụ đề đồng bộ. Sử dụng nút Trước / Tiếp theo (hoặc phím mũi tên ← / →) để nghe chính xác thời điểm từ được phát âm.
What is the most common pronunciation mistake when saying “pka”?
Single-syllable words like "pka" carry primary acoustic prominence in isolation, but can be swallowed in rapid connected speech. Sustain vowel clarity without rushing into the trailing consonant. Elevate pitch slightly when "pka" carries the primary contrast or new information in a sentence.