Chemistry

How to find concentration using Gas Chromatography results

I managed to get sample peaks 1 and 2 and their areas are 47855 and 381339 uV/s respectively I plugged these information into a formula, and I get 47855/381339 = sample 1 concentration/sample 2 conc

I want to know where I can online find sulfur hexafluoride

I want a cheap website which is easy to order from. 10 points goes to the best answer!-Sulfur hexafluoride is not cheap.Aldrich chemical sells it in lecture bottles containing 227 g for$341.00.Youll a

How do you calculate this

a 25g ice cube at its melting point is added to calorimeter water at 25.4 C. When thermal equilibrium is reached, the final temperature of the mixture is 15C. The original volume in the calorimeter wa

Making Agarose gel. Making sure calculation is right

To make 2% agarose gel (w/v), how much agarose would you put into 50 mL of 1X TAE buffer? I got 1 gram. Is that correct? Please verify-Yes

Equilibrium Chemistry Question URGENT

given the equation A b + 2c. at a particular temperature, K = 1.3 x 10^5. if you mixed 1.4 Mol B, 0.050 Mol C, and 0.0050 Mol A in a 1-liter container in which direct would the reaction initially pro

Why would increasing ocean acidity result in a noisier ocean

H^+ ions move extremely rapidly in water much more so than say the Na^+ ions in sea water.The mechanism that is believed responsible for this rapid movementis called the Grotthuss Mechanism: http://e

Convert the density 5.2 ng/mL to units of micrograms/cubic meters

Im not understanding the conversion of nanograms to micrograms....for some reason its just not clicking.-1 ng = 0.001 µg So its 5200 µg/m³

What is the correct answer

Given that the molar heat of fusion of sodium (Na a) 2.63KJ b) 2.98KJ c) 20.6KJ d) 473KJ-First you need to know how many moles of sodium you have.The atomic weight (molar mass) of sodium is 23 (roun

Help with Hess' Law problem

Calculate the Delta H for the reaction: NO(g) + O(g) --->NO2(g) given the following information: NO(g) + O3(g) ---> NO2(g) +O2(g) DH =-198.9 kJ O3(g) --->3/2 O2(g) DH= -142.3 kJ O2(g) --->2O(g) DH

..... Chemistry... can anyone help

When the following reaction is balanced, what is the whole number molecular coefficient on KOH? ____ HCl + ____ KOH ---> ____ H2O + ____ KCl a. 4 b. 7 c. 9 d. 3 e. 5 f. 1 g. 6 h. 8 i. 2 When the fol

Please help solve for molar mass!

A student performed an experiment on an unknown solid which melts in contact with hot water. The following data and information is known about the unknown solid. Experimental Data volume of water- 20

Which of these elements is found in a family with the above electron configuration

ns2 np3-the given configuration puts you in Group 15 so Sb-Sb s2 p3 is in the row with Nitrogen and phosphorus, and so on and so is Sb

Equivalents present per gram

A student dissolves 0.326 g. of a powdered antacid in 32.36 mL of 0.1034 M HCl. The student boils the mixture and then allows it to cool. Finally, the student adds bromophenol blue indicator to the mi

What is the mass for....

4.436 g of NaOH added to 150.0 mL of water-water weighs 1.000 g/ml thus answer is 154.436 g

Moles of HCl in this reaction

A student dissolves 0.326 g. of a powdered antacid in 32.36 mL of 0.1034 M HCl. The student boils the mixture and then allows it to cool. Finally, the student adds bromophenol blue indicator to the mi