The empirical formula : Na₂Cr₂O₇
<h3>Further explanation</h3>
Given
170 g sample contains :
29.84 g sodium, 67.49 g chromium, and 72.67 g oxygen
Required
The compound's empirical formula
Solution
mol ratio of elements :
Na : 29.84 : 23 g/mol = 1.297
Cr : 67.49 : 51,9961 g/mol = 1.297
O : 72.67 : 16 g/mol = 4.54
Divide by 1.297
Na : Cr : O = 1 : 1 : 3.5 = 2 : 2 : 7
This would be a supersaturated solution!
Celsius to Kelvin conversion
formula
<span>The temperature T in
Kelvin (K) is equal to the temperature T in
degrees Celsius (°C) plus 273.15:</span>
T(K) <span>= T(°C) + 273.15</span>
So
to convert the boiling point of cyclopropane from degrees Celsius to kelvin:
T(K) <span>= T(°C) + 273.15</span>
T(K) <span>= -33 +
273.15</span>
T(K) <span>= 240.15 K</span>
<span> </span>
Answer:
Try this for answer 3082.24
Answer:
44.8 L
Explanation:
Using the ideal gas law equation:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K)
At Standard temperature and pressure (STP);
P = 1 atm
T = 273K
Hence, when n = 2moles, the volume of the gas is:
Using PV = nRT
1 × V = 2 × 0.0821 × 273
V = 44.83
V = 44.8 L