A sled is accelerating at 2 m/s2 because it is being pushed on ice by Jenny. Tommy then jumps on the sled (he has the same mass
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Answer:
- The solubility of the salt is 35.16 (g/100 g of water).
- It would take 71.09 grams of water to dissolve 25 grams of salt.
- The percentage of salt that dissolves is 52.7 %
Explanation:
<h3>a.</h3>We know that 3.20 grams of salt in 9.10 grams of water gives us a saturated solution at 25°C. To find how many grams of salt will gives us a saturated solution in 100 grams of water at the same temperature, we can use the rule of three.
Working it a little this gives us :
So, the solubility of the salt is 35.16 (g/100 g of water).
<h3>b.</h3>Using the rule of three, we got:
Working it a little this gives us :
So, it would take 71.09 grams of water to dissolve 25 grams of salt.
<h3>C.</h3>Using the rule of three, we got that for 15.0 grams of water the salt dissolved will be:
Working it a little this gives us :
This is the salt dissolved
The percentage of salt dissolved is:
Hello,
Average speed is total distance divided by total time. From the problem, our total distance is given as 500 kilometers and given time is 5 hours. Therefore, the average speed is:
Therefore, the average speed is 100 km/h. Please let me know if you have any questions!