Video: Yuav ua li cas hloov cm rau ntim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Xam cov ntim ntawm ib lub voos xwmfab lossis lub voos xwmfab uas siv tus qauv V = l × w × h. Pib los ntawm kev muab qhov ntev × dav × qhov siab. Yog li yog tias koj lub voos xwmfab yog 5 cm dlhi, 3 cm dav thiab 2 cm siab, nws ntim Luas = 5 x 3 x 2 = 30 cm².
Hauv qhov no, yog vim li cas 1 cm cubed sib npaug rau 1 mL?
Ib cubic centimeter sib raug rau ib lub ntim ntawm ib milliliter. Qhov loj ntawm ib cubic centimeter dej ntawm 3.98 ° C (qhov kub ntawm qhov uas nws ncav cuag nws qhov siab tshaj plaws) yog ze ze sib npaug rau ib grams.
Muaj pes tsawg ml ntawm cm2? Hloov ua lwm yam cubic centimeter mus milliliters
| Cubic Centimeters | milliliters |
|---|---|
| 2 cmj | 2.00 ml ib |
| 3 cmj | 3.00 ml ib |
| 4 cmj | 4.00 ml ib |
| 5 cmj | 5.00 ml ib |
Muaj pes tsawg cm nyob rau hauv mL?
Txij li kaum zaus ib-pua yog ib-txhiab, muaj kaum millimeters hauv ib cm siab . Tab sis koj nug pes tsawg milliliters yog in a cm siab . Ib milliliter yog ntsuas qhov ntim thiab a cm siab yog qhov ntsuas ntawm qhov ntev yog li lawv yog cov ntsuas ntsuas sib txawv.
Muaj pes tsawg grams ib liter?
Cov lus teb yog 1000. Peb xav tias koj hloov dua siab tshiab ntawm grams [dej] thiab litre . Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: grams los yog litre Lub SI muab tau los rau lub ntim yog lub cubic meter.
Pom zoo:
Yuav ua li cas hloov lub ntim ntim hauv tsev muag tshuaj?
Kev hloov pauv ntawm cov tshuaj X yog 0.5mL / 40mg. Yog hais tias qhov xav tau concentration yog 4mg hauv 1mL, ces 20mL yog xav tau rau 80mg ntawm tshuaj X. Yog hais tias 40mg displaces 0.5mL ntawm cov tshuaj, nws txhais tau tias 80mg displaces 1mL. 20mL - 1mL = 19mL ntawm diluent xav tau
Yuav ua li cas koj mus ntawm moles rau ntim?
Hloov los ntawm moles rau ntim (litres): Ua kom koj tus nqi mole los ntawm molar volumeconstant, 22.4L. Hloov los ntawm cov khoom (atoms, molecules, orformula units) rau moles: Faib koj cov nqi particle los ntawmAvogadro tus lej, 6.02 × 1023. Nco ntsoov siv cov kab lus ntawm koj lub laij lej
Yuav ua li cas koj ntim kab rau kab chromatography?
Packing a (silica gel) kem: Siv ib daim hlau los ntxiv ib lub paj rwb rau hauv qab ntawm kem. Clamp lub kem mus rau ib lub nplhaib sawv ntsug thiab ntxiv cov xuab zeb txaus kom sau qhov nkhaus ntawm kab. Muab ib tug pinch clamp rau ntawm lub raj, ces sau rau sab 1/4 mus rau 1/3 tag nrho nrog rau qhov intial eluent
Yuav ua li cas rau lub zog thaum nws hloov ntawm ib daim ntawv mus rau lwm qhov?
Kev hloov pauv hluav taws xob yog thaum lub zog hloov ntawm ib daim ntawv mus rau lwm qhov - zoo li hauv lub tshuab hluav taws xob uas hloov lub zog kinetic ntawm dej rau hauv hluav taws xob. Thaum lub zog tuaj yeem hloov pauv lossis hloov pauv, tag nrho lub zog tsis hloov pauv - qhov no yog hu ua kev txuag hluav taws xob
Qhov kev hloov pauv twg yuav hloov daim duab A rau hauv daim duab B?
Ob daim duab tau hais tias yuav sib haum xeeb yog tias ib tus tuaj yeem tau txais los ntawm lwm tus los ntawm ib ntu ntawm kev txhais lus, kev xav, thiab kev sib hloov. Cov duab sib xws muaj qhov loj thiab zoo tib yam. Txhawm rau hloov daim duab A rau hauv daim duab B, koj yuav tsum xav txog nws hla y-axis thiab txhais ib chav nyob rau sab laug