Answer:
Solution : When sodium hydrogen carbonate is added to acetic acid then carbon dioxide (CO2) gas is evolved. CO2 trun s lime water milky it is a non supporter of combustion and is absorbed by strong alkalies like NaOH. Sodium hydrogen carbonate when added to acetic acid evolves a gas.
Explanation:
Chemically the ethanoic acid reacts with the sodium hydrogen carbonate to form carbon dioxide gas and water. The carbon dioxide gas produced rushes away from the water. This is seen as bubbles.
solution:
The formula to calculate Avagadro’s number(N) from density the following formula is used
N=Avagadro number
M=molar mass of copper
N=number of copper atoms occupying one unit cell of copper
Delta=Density of copper
A= length of edge of unit cell of copper.
Hence from the given option (a),(b),(c) are required. Only atomic number of copper is not needed.
Hence the correct answer is atomic number of copper
Answer:
0.034M HCl is the concentration of the diluted solution
Explanation:
You take, initially, 25.00mL of the 0.136M HCl. Then, you dilute the solution to 100.00mL. The solution is diluted:
100.00mL / 25.00mL = 4. The solution was diluted 4 times.
That means the concentration of the diluted solution is:
0.136M / 4 =
<h3>0.034M HCl is the concentration of the diluted solution</h3>
Answer:
low boiling points and melting points
various colors
poor conductors of heat and electricity
brittle solids