Answer:
The volume is the same for any gas.
Explanation:
<em>Which describes the volume of 1 mol of gas at standard temperature and pressure?
</em>
- <em>The volume is greater for a larger mass of gas.</em> FALSE. The volume depends on the amount of matter (moles) and not on the mass.
- <em>The volume is the same for any gas.
</em> TRUE. The volume of any gas at standard temperature and pressure is 22.4 L.
- <em>The volume depends on the size of the container.</em> FALSE. The volume is constant at fixed moles, pressure and temperature.
- <em>The volume varies with the pressure.</em> FALSE. The standard pressure is 1 atm and it is constant.
<u>Answer:</u> The speed of the electron is
<u>Explanation:</u>
To calculate the speed of electron for given wavelength, we use the equation given by De-Broglie's, which is:
where,
= De-Broglie's wavelength =
h = Planck's constant =
m = mass of the electron =
v = speed of the electron = ?
Putting values in above equation, we get:
Hence, the speed of the electron is
Explanation:
mass of Fluorine = 10proton + 10 neutron
mass = 20
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Answer:
Isocyanates
Explanation:
The functional group is cyanate ion of the formula NCO⁻. The atoms in this functional group occur in a straight line giving it a linear structure. It has a singe C-O bond and a triple N ≡ C bond. It forms cyanate salts when it reacts with pure elements like sodium and other reactive metals as it has some acidic properties. It also forms complexes like silver cyanato [Ag(NCO)₂]⁻
Answer:
Molar Mass of Calcium Carbonate = 100g
given mass = 50g
Number of mole of Calcium Carbonate =50/100 = 0.5 mole
Molarity = mole per litre of volume
Molarity = 0.5 /0.25 = 2mole/litre
Explanation:
hope it helps ......
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