<span>It has to be 100mL as total mass = 400g
Moles HCl = 0.05; moles Ba(OH)2 = 0.15
If volume HCl is 100mL then moles HCl = 0.05 and Ba(OH)2 is excess
If 2 moles HCl release 118 kJ then
0.05 moles HCl releases 2.95 kJ
q = cm deltaT
c=4.18 x 10-3 kJ/c.g
DeltaT = q/cm = 2.95/4.18 x 10-3 x 400 = 1.76 degrees rise so final temp = 1.76+ 25</span>
Answer:
If you want to improve the amount of the recycling in your city, Tom need to implement a lot of initiatives and the following on this question isn't the right way to do it.
Explanation:
Whether Tom wants to improve the amount of recycling in his city, he need not to ban all plastics. What he must to do is to take plastics from houses, companies, supermarkets and other places that use this kind of material and recycle them, and change them in other products to back to the society or community. Besides recycle, he need to contact the local authority to make recycling campaigns. That's the reason to close grocery stores on Sundays isn't the right way to do in this situation. If he are wishing to close all landfills, isn't the right option to do, because you have to implement a good landfills and make it works in a right way, because is important to have an sustainable landfill without creating environmental pollution for the community, local population and the planet. But to do all of these things explained above, you have to obtain investiment and money throughout the authorities, governments or maybe businessmen from big companies.
Answer:
The independent variable is "controlled" or held constant in the control group. A single experiment may include multiple experimental groups, which may all be compared against the control group. The purpose of having a control is to rule out other factors which may influence the results of an experiment.
Explanation:
Tidal volume was the measure of air that regularly enters the lungs amid calm relaxing. The Expiratory Reserve volume was the measure of air you can powerfully breathe out pas an ordinary tidal termination. Then, the vital capacity was the measure of air a man can move into or lungs and is the entirety of the considerable number of volumes aside from leftover volume. Amid practice is the point at which the tidal volume could increment because of the additional carbon dioxide
