The answer is A.
We know the formula for molarity :
<u>Molarity = Number of moles ÷ Volume</u>
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Let's assume there are 0.6 moles of NaCl in 1 liter of ocean water.
Then, mass of salt is :
- Mass of one mole salt × 0.6
- 58.5 × 0.6
- 35 grams
Answer:
D. B, C, A
Explanation:
A. For object A, given the following data;
Mass = 2kg
Net force = 1N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 1/2
<em>Acceleration = 0.5m/s²</em>
B. For object B, given the following data;
Mass = 8kg
Net force = 10N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 10/8
<em>Acceleration = 1.25m/s²</em>
C. For object C, given the following data;
Mass = 7kg
Net force = 7N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 7/7
<em>Acceleration = 1m/s²</em>
Therefore, placing the objects in decreasing order, according to the magnitude of the acceleration they are experiencing is B, C, A
Answer:
a.
Explanation:
The correct answer is:
a. Raising the carbon dioxide increases the acid potential and so the body has to get rid of H + ions in the urine. Therefore H + in the urine increased.
Because in order to increase H + in the urine there must be a change in the acid potential, which is the way to get rid of the excess H + in the urine and this is achieved through the change to carbon dioxide, that there is an increase, if would have decreased, the H + in the urine would decrease, they keep an inverse proportion.
C = 4 mol/l
v = 0.5 l
n(NaCl)=cv
n(NaCl) = 4 mol/l · 0.5 l = 2 mol
2 moles of NaCl must be dissolved
4 grams of salt, 8 grams of sugar, and 400 grams of water
