# Yahoo Web Search

1. ### Give all the steps necessary to obtain 100 ml of a 1 .7 X 10 -5 M solution using serial dilution.?

Ill do the math/chemistry solving. You make up the procedure...concentration and volume, find moles than mass of compound to make this work. -- C = n / V ( 1 .7 x 10^-5 mol/L) = n / 0. 1 L ( 1 .7 x 10...

3 Answers · Science & Mathematics · 22/07/2013

2. ### You are given a solution of 14.8 M NH3. How many mL of this solution do you require to give 100 .0mL of....?

Using the definition of molarity: 1 M = 1 mole/ 1 L 1 mole/ 1 L = x moles/ 0. 1 L...

1 Answers · Science & Mathematics · 15/11/2013

3. ### You have a stock solution of ampicillin that is 100 mg/ml. How much of this stock do you need to add to 1 ?

...) 100000 * V1 = 100000 + 100 * V1 99900 * V1 = 100000 V1 = 1 .001 mL That's the theoretical answer, which I did to find out the 'exact' initial volume, because...

1 Answers · Science & Mathematics · 28/09/2013

4. ### how do you convert cm- 1 to m- 1 ?

... told you how to convert cm to m. To converm cm^- 1 to m^- 1 (i.e. inverse cm to inverse m, presumably you're talking infrared or radio spectroscopy here) you MULTIPLY by 100 , not divide. If you get confused with these types of ...

8 Answers · Science & Mathematics · 04/03/2007

5. ### Dilute solutions?

...=> Vstock= (Cdil/Cstock) *Vdil= =(0. 1 / 1 )* 100 =10 ml So you need 10ml of stock solution. Put it in a volumetric cylinder or flask of 100ml, add water up to 100ml and mix. Mixing 10ml stock and 90ml solvent is bad practice for...

3 Answers · Science & Mathematics · 03/11/2006

6. ### Chemists out there please help!!! I want to prepare a 100 ppm N using Ammonium Chloride. What will I do ?

...mg per litre so to give 100mg N (M.Wt=14) you need (0. 100 /14 ) x 53.5 (M.Wt NH4Cl) g =0.3821g NH4Cl -so weigh this out and dilute to 1 litre in a 1 lt volumetric flask @ 20ºC.

2 Answers · Science & Mathematics · 05/08/2007

7. ### A student in a lab adds 150 mL of 1 .00M AgNO3 solution to 100 mL of 1 .00M K2CO3 solution?

... moles of K2CO3 = 1 X 100 / 1000 = . 1 moles which can react with .2 moles of ...it is the limiting reagent and leads to the formation of .15 /2 moles of Ag2CO3...

1 Answers · Science & Mathematics · 11/12/2010

8. ### how many significant figures does 100 . have?

... you would write 0.10 mm, expressed to two significant digits. Since 1234...'s benefit, know that 10 and 10. do not have the same precision. 10 has 1 significant digit while 10. has two.

2 Answers · Science & Mathematics · 28/08/2010

9. ### How much heat (in kJ) is needed when 97.79 g of water warms and boils from 38. 1 °C to 100 °C?

yep, you're doing it right. use: Q= m x Sp Ht x (change in temp.) i got...

3 Answers · Science & Mathematics · 12/04/2009

10. ### How many grams of KOH (FM = 56. 1 ) do you need to make exactly 100 .mL of a 0.54M KOH solution?

...concentration=moles/volume 0.54=moles/100ml convert 100ml into litres=0. 1 0.54(0. 1 )= amount of moles 0.054= amount of moles so now u knwo...

3 Answers · Science & Mathematics · 21/10/2009