Electrons allow for chemical bonds to form.
Answer:
8.54g
Explanation:
we know that: n=m/Mm
where:
- m represent mass
- and Mm represents molar mass
rearrange for m: m= n x Mm
m= 0.0490mol x 174.259g/mol
m= 8.54g
Answer:
53.1 mL
Explanation:
Let's assume an ideal gas, and at the Standard Temperature and Pressure are equal to 273 K and 101.325 kPa.
For the ideal gas law:
P1*V1/T1 = P2*V2/T2
Where P is the pressure, V is the volume, T is temperature, 1 is the initial state and 2 the final state.
At the eudiometer, there is a mixture between the gas and the water vapor, thus, the total pressure is the sum of the partial pressure of the components. The pressure of the gas is:
P1 = 92.5 - 2.8 = 89.7 kPa
T1 = 23°C + 273 = 296 K
89.7*65/296 = 101.325*V2/273
101.325V2 = 5377.45
V2 = 53.1 mL
Answer:
C. Bones carry impulses to the nervous system.
Explanation:
hop this helps
