Answer:
20.2g (3 s.f.)
Explanation:
Please see attached picture for full solution.
Answer:
= 1.0593 g
Explanation:
1.1% NaCl by mass, means;
1.1 g per 100 g = 0.011
Therefore; the amount of NaCl present in 93.6 g of the solution is;
= 0.011 × 96.3 g
<u>= 1.0593 g</u>
<h2>Answer:</h2>
At 189 K volume = 32.0 cm
As volume of gas is directly proportional to temperature.
As the temperature increase the volume of gas will also increase.
so
Volume at 1 K = 32/189
Volume at 242 K = 32/189 * 242 = 40.97 cm.
Gas occupy 40.97 cm volume at 242 K.
<u>Importance </u><u>of </u><u>Circulatory </u><u>System</u>
- This system helps in transportation of respiratory gases like O2 and CO2, nutrients, hormones, enzymes, minerals, waste products.
- It helps in storage of essential substances for future use.
- It also generates heat to the body.
Hope you could understand.
If you have any query, feel free to ask.
Answer:
Solubilities of 
increases with increasing acidity
Explanation:
Concentration of 
decreases with increasing acidity. Therefore solubility of 
increases to keep constant solubility product.
Concentration of 
decreases with increasing acidity due to formation of 
. therefore solubility of ZnS increases to keep constant solubility product
Increasing acidity have no effect on this above equilibrium. Therefore solubility of 
remains constant.
Concentration of 
decreases with increasing acidity due to formation of 
. Therefore solubility of 
increases to keep constant solubility product.
Increasing acidity have no effect on this above equilibrium. Therefore solubility of NaI remains constant.
Concentration of 
decreases with increasing acidity due to formation of 
. Therefore solubility of 
increases to keep constant solubility product.
