What is the final temperature of 1370 g of water, originally at 20.9°C, if it absorbs 47.6 kJ of heat?
the problem is find the pH of a solution prepared by dissolving all of the following in sufficient water to yield 1.00 L of solution :0.180 mole of chloroacetic acid (CICH2CO2H),0.020 mole ofCICH2CO2Na,0.080 mole HNO3, and 0.080 mole Ca(OH)2. Assume that the Ca(OH)2 and HNO3 ...
a 0.120 ml portion of a 50.0% (w/w) KOH solution having a density of 1.50*10^3 g/l is diluted to 250 ml. What is the pH of the resulting solution?
what is 4 divided by 371
if an averge current of 5.5 Amp is passing through aconductor for 2 min . what is the charge in Coulomb ( C ) crosstional areaed any cross sec
ATP synthase, shown below, uses the proton (H ) gradient to drive ATP synthesis. Put the following steps of ATP synthesis in order from proton transport to the synthesis of ATP: a. The y subunit rotates and interacts with the three alpha beta subunit pairs, causing confrontati...
Oligonucleotides can be synthesized, one nucleotide at a time, by adding activated monomers to a growing chain. Place the steps of chemical DNA synthesis in the correct order. The first step is : 3' end of growing oligonucleotide attached to solid support. Then there is fo...
I am working on a problem like this one. I dont understand how you got to 51.4 from 30500 + (-20,907) = 51.4 kJ. Can you explain?
You are choosing between two long distance telephone plans. One plan has a monthly fee of $15 with a charge of $.05 per minute. The other plans has a monthly fee of $5 with a charge of $.07 per minute. For how many minutes of long-distance calls with the cost for the two plans...