Answer:- rms speed of nitrogen gas is 526.93 m/s.
Solution:- The formula used to calculate the rms that is root mean square velocity is....
where, R is universal gas constant in terms of energy and it's value is 8.314 J/mol.K
T is kelvin temperature.
T = 38.7 + 273 = 311.7 K
M is molar mass and the molar mass of nitrogen gas is 28 g/mol. Need to convert it to kg/mol and so it becomes 0.028 kg/mol.
Let's plug in the values in the formula...
[tex]v_r_m_s = 526.93 m/s
<span>Potassium chlorate is a rich source of oxygen It decomposes upon heating to produce potassium chloride and oxygen.</span>
Answer:
(a) Gas pressure ---------------------> (iii) force per unit area
(b) One mole of substance -------------------> (i) 6.02 x 10²³
(c) One mole of any gas ----------------------> (ii) 22.4 dm³ at STP
(d) Avogadro's number -----------------> (iv) 6.02 x 10²³ particles
Answer:
3.78 gm O2
Explanation:
In the reaction represented by the equation 2Al2O3 → 4A1 + 302, calculate the theoretical amount in grams of oxygen, O2 produced if 11.84 grams Al2O3 decomposes?
for every 2 moles of Al2O3, 3 mole of 02 are produced
molecular weight of Al2O3 =(2X27) + (3X32) =54+96= 150
11.84 gm Al2O3 = 11.84/150 moles =0.0789 moles
This will produce 3/2 X 0.0789 moles of O2 = 0.118 moles O2
mol wt of O2 is 32
0.118 moles weighs 0.118X32 = 3.78 gm O2
Answer:
[OH⁻] = 0.002 M
Explanation:
<u>The definition of pOH</u> is similar to the definition of pH:
This means that with a <u>given pOH value</u>, the calculation of [OH⁻] is a matter of algebra:
To remove the logarithm we increase 10 by the power of the pOH:
- =[OH⁻]