Main characters. 1  SpongeBob SquarePants (born July 14, 1986) is a yellow sea sponge and the main character of the show. His best friend is Patrick. 2  Patrick Star is a starfish who is SpongeBob's best friend. He lives under a rock and is not very smart. 3  Squidward Tentacles is an octopus and SpongeBob's next-door neighbor.
(C p of water 4184 J/g o C) 4. How much energy is required to heat 120.0 g of water from 2.0 Â°C to 24.0 Â°C? (C p of water 4184 J/g o C) 5. If 720.0 g of steam at 400.0 Â°C absorbs 800.0 kJ of heat energy, what will be its increase in temperature? (C p of water 4184 J/g o C) 6.C p of water 4184 J/g o C) Calculate the following using the formula for density. Make sure to show the equation, the set up and the answer with proper units. 1. WHAT IS THE DENSITY OF WATER IF THE SAMPLE HAS A MASS OF 400.00 g AND A VOLUME OF 400.0 mL? 2.
DNA purity (A 260 /A 280) = (A 260 reading â A 320 reading) Ã· (A 280 reading â A 320 reading). Strong absorbance around 230nm can indicate that organic compounds or chaotropic salts are present in the purified DNA. A ratio of 260nm to 230nm can help evaluate the level of salt carryover in the purified DNA.otal yield is obtained by multiplying the DNA concentration by the final total purified sample volume. DNA yield (Âµg) = DNA concentration Ã total sample volume (ml). However, DNA is not the only molecule that can absorb UV light at 260nm.