Answer:
70g
Explanation:
Rate = 35g of NaCl can dissolve in 100g of H2O
Use proportions for 200g of H2O:
Since 200 is double of 100, x needs to be double of 35.
Therefore the maximum amount of NaCl that can dissolve in 200g of water is 70g.
Answer:
D
Explanation:
Identifying unique features of evidence
<span>0.570 M (note the capital M, this is molarity. Using m denotes molality.
Molarity is represented by moles of solute over the liters of solution. In this problem we are given the mass of the solute and volume of solution. The calculations is follows:
(15.7 g CaCO3/275 mL of solution) x (1 mole CaCO3/ 100.0869 g of CaCO3) x (1000 mL of solution/ 1 L of solution) = 0.570 M CaCo3.</span>
