Answer: 100x
Explanation:
The actual power or magnification of a compound optical microscope is the product of the powers of the ocular (eyepiece) and the objective lens. The maximum normal magnifications of the ocular and objective are 10× and 100× respectively, giving a final magnification of 1,000×.
Calcium chloride (CaCl2) is a salt which dissociates when
dissolved in water. Assuming that the dissociation is complete (100 %), then
the half reaction for this would be:
<span>CaCl2 ---> Ca2+
+ 2 Cl-</span>
We can see that in 1 mole of CaCl2 salt, 1 mole of Ca2+
ion and 2 moles of Cl- ion is created. Therefore there are 3 moles of ion per 1
mole of CaCl2. Using this ratio, the total number of moles of ions in the
solution is:
Total number of ions = 0.5 mol CaCl2 * (3 moles ion / 1
mol CaCl2)
<span>Total number of ions = 1.5 moles ion</span>
It has seven neutrons,
six protons,
Answer:
The new volume at -29°C and 432 torr is 6.51 L
Explanation:
Step 1: Data given
Initial volume of CO = 4.63 L
Initial temperature = 296.0 K
Initial pressure = 737 torr = 737/760 = 0.9697 atm
Step 2: Calculate the new volume
(P1*V1)/T1 = (P2*V2)/T2
V2 = (P1V1*T2) / (T1*P2)
⇒ with P1 = the initial pressure = 0.9697 atm
⇒ with V1 = the initial volume = 4.63 L
⇒ with T1 = The initial temperature = 296.0 K
⇒ with T2 = the new temperature = -29.0 + 273 = 244 K
⇒ with P2 = the new pressure = 432/760 = 0.5684 atm
V2 = (P1V1/T1) * (T2/P2)
V2 = 6.51 L
The new volume at -29°C and 432 torr is 6.51 L
