Answer:
Option C. 0.23 molar
Explanation:
The following data were obtained from the question given:
C1 = 0.5 M
V1 = 340mL
V2 = since 400mL was added to the original volume, therefore = 340 + 400 = 740mL
C2 =?
The concentration of the diluted solution can be calculated by using the following:
C1V1 = C2V2
0.5 x 340 = C2 x 740
Divide both side by 740
C2 = (0.5 x 340) / 740
C2 = 0.23M
Therefore, the new concentration of the solution is 0.23M
Answer:
0.252 mol
Explanation:
<em>Given the following reaction: </em>
<em>Cu + 2 AgNO₃ → 2 Ag + Cu(NO₃)₂</em>
<em>How many moles of Ag will be produced from 16.0 g Cu, assuming AgNO3 is available in excess.</em>
First, we write the balanced equation.
Cu + 2 AgNO₃ → 2 Ag + Cu(NO₃)₂
We can establish the following relations.
- The molar mass of Cu is 63.55 g/mol.
- The molar ratio of Cu to Ag is 1:1.
The moles of Ag produced from 16.0 g of Cu are:
Answer:
The amount of water on the Earth is constant, or nearly so. Actually, the amount is increasing ever so slightly due to volcanic eruptions expelling water vapor into the atmosphere, but, for all practical purposes, the amount of water (as a gas, liquid and as snow and ice) can be considered to be constant.
Explanation:
Answer: umm, yes? DUH
Explanation: touch some falling out of a tap
To decrease the temperature of the ice bath
