On a hot summer day (30 degrees Celcius), a pesky little mosquito produced its warning sound near your ear. The sound is produced by the beating of its wings at a rate of about 600 wing beats per second. What is the frequency in Hertz of the sound wave? What is the wavelength ...
How many grams of sodium bicarbonate mut be decomposed by: HCl (ag) + NaHCO3 (ag) ----> NaCl (ag) + CO2 (g) + H2O (l) to yield 75.0 mL of carbon dioxide at STP?
I started to use PV=nRT. So, n = (.930 atm)(.04852 L) ------------------ = 1.86 x 10^ -3 (.0821) (296 K) mol I multiplied that by 84 g/mol (molar mass of sodium bicarbonate) and then by 100%....which equated to 15.62%. That seems off to me. Do you know what I'm doing wrong?
A 3.23 gram sample of a sodium bicarbonate mixture was reacted with excess acid. 48.52 mL of the evolved gas was collected of the water at .930 atm. and 23.0 degrees C. What is the percentage of sodium bicarbonate in the original mixture?
Cl2 + 2koh-->kcl _kclo +H2O 3KClo-->2Kcl+kclo3 4kclo3-->3kclo4 +kcl what mass of cl2 (g) is required to make 234g kclo4
The amount of solar radiation recieved anually in arizona is about 8.4 x 10^6 KJ/m^2. What mass of carbon must be burned into carbon dioxide to produce the same amount of energu in the following reaction? C + 02 --->CO2 deltaH=-393.5Kj
i need to factorise 4 cos squared theta + 2 cos theta - 1
what is the adaptive value of having the organ of gas exchange - in this case, the alveolus - inside the body?
So I'm a bit confused. What's the difference between penance and penitence? Are they essentially the same thing? Thank you everyone.