Carbon is the reference taken to assign the atomic mass unit
- One twelfth of the mass of unbound carbon-12 is taken as 1amu
- The unit for the atomic mass constant is Dalton (Da)
- This unit is standard when doing calculations in chemistry and physics
- 1amu = 1.6605x10⁻¹⁹g
- This was also derived from the law of definite proportions
- This standard has been set by the International Union of Pure and Applied Chemistry (IUPAC)
- The IUPAC is responsible for assigning various standards such as the nomenclature of various compounds, and updating the periodic table of elements.
- According to the IUPAC carbon is the reference taken to assign the atomic mass unit
Learn more about atomic mass units here:
brainly.com/question/338808
#SPJ10
Osmotic pressure is calculated by multiplying the molarity, temperature and the universal gas constant. It is expressed as:
P = iMRT
Say the temperature for both solutions is 373.15 K.
P(NaCl) = 2 x 0.10 x 0.08206 x 373.15 = 3.06 atm
P(KBr) = 2 x<span> 0.10 x 0.08206 x 373.15 = 3.06 atm
They will have the same osmotic pressure since they have the same concentration, dissociate into 2 ions and at the same temperature.</span>
Answer:
Explanation:
The Unit Of Current is defined as the flow of 1 coulomb of charge in one second . Its unit is Ampere.
An ammeter is a measuring device used to measure the electric current in a circuit. A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.