Subtracting the mass of (flask+water) from the empty flask gives:
95.023 g - 85.135 g = 9.888 grams of water
Dividing this by the given volume of 10.00 mL water gives:
9.888 grams of water / 10.00 mL of water = 0.9888 g/mL of water
Therefore, based on this sample, the density of water is 0.9888 g/mL, which is close to the usually accepted approximation of 1 g/mL.
Explanation :
It is given that,
Speed of the proton, 
Magnetic field, 
Magnetic force is given by :

q is the charge of proton, 
So,


The direction of force is given by using right hand rule. So, the force will act in upward direction.
Hence, the correct option is (a) "
to the north".
Answer:
0.1357 M
Explanation:
(a) The balanced reaction is shown below as:

(b) Moles of
can be calculated as:
Or,
Given :
For
:
Molarity = 0.1450 M
Volume = 10.00 mL
The conversion of mL to L is shown below:
1 mL = 10⁻³ L
Thus, volume = 10×10⁻³ L
Thus, moles of
:
Moles of
= 0.00145 moles
From the reaction,
1 mole of
react with 2 moles of NaOH
0.00145 mole of
react with 2*0.00145 mole of NaOH
Moles of NaOH = 0.0029 moles
Volume = 21.37 mL = 21.37×10⁻³ L
Molarity = Moles / Volume = 0.0029 / 21.37×10⁻³ M = 0.1357 M
Answer:
The human body needs both saturated fats and unsaturated fats to remain healthy. Most dietary recommendations suggest that, of the daily intake of fat, a higher proportion should be from unsaturated fats, as they are thought to promote good cholesterol and help prevent cardiovascular disease, whereas an overabundance of saturated fats is thought to promote bad cholesterol.
Explanation:
Answer:
Option D
A reversible process is one in which a large change in conditions can reverse its direction.
Explanation:
A. Temperatures of a few nanokelvins can be achieved in a Bose-Einstein condensate. TRUE
b. A perfect crystal of any substance at 0 K has minimum entropy. is TRUE
c. The standard molar entropy of a substance at temperature T is a measure of the quantity of energy that must be dispersed in that substance for it to exist at T. is TRUE
d. A reversible process is one in which a large change in conditions can reverse its direction. is FALSE
e. Entropy is a measurement of the nanoscale dispersal of energy in a sample of matter. is TRUE
A reversible reaction is one that can return to it's normal direct even if an infinitesimal change is applied to some of it's conditions.