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1. ### Chemistry Help anyone? Mole and number calculations?

1 "mole" of NaCl contains Avogadro's number of Na+ ions AND an equal number of chloride anions...

6 Answers · Science & Mathematics · 09/06/2009

2. ### Number of Moles Calculation?

the number of moles is the same, but the concentration is not. filling...additional water. u did not add more HCL to make 100 mL. therefore, the number of moles of HCl stays the same. concentration is different...

1 Answers · Science & Mathematics · 16/10/2010

3. ### do i set my calculator to complex or real number calculations?

...4i, 4 + 1990i 10034.333 + 3.883912920 i see: www.wikipedia.org/wiki/Complex_number. you might think the square root of -1 makes no sense. true. it doesn't really...

3 Answers · Science & Mathematics · 01/04/2008

4. ### Reynolds number calculation?

Diameter = 25mm = 0.025m Reynolds number = 700 kg/m^3 * 0.0016 m/s * 0.025m / 4 x 10^-6 Ns/m^2 = 7000 Flow is turbulent. For laminar flow, Reynolds number < 3500

1 Answers · Science & Mathematics · 24/07/2013

5. ### Oxidation Number Calculation?

...and many others) exhibit what is called an "average oxidation number." Remember, the assignment of numerical charges to atoms...

1 Answers · Science & Mathematics · 14/12/2007

6. ### How to Balance A Simble Equation Using Oxidation Number Calculations?

...4 O_2^- ---> 2 O^2- + O_2, which balances out the number of electrons on left and right. Now you have to incorporate that reaction...

2 Answers · Science & Mathematics · 03/02/2010

7. ### What are these number calculations with the correct number of significant figures?

...exact*, meaning there are effectively an infinite number of significant digits. See below. I... (g), I got 226.9 as a raw calculation and rounded up to 2.3 x 10^2. Edit...

1 Answers · Science & Mathematics · 07/09/2014

8. ### % calculation number math help?

1022 is answer 13.6 is percent If a number is increased by 13.6 % that is an increase of .136 (decimal...

3 Answers · Education & Reference · 22/05/2011

9. ### how do you use the calculator fraction button when working out mix number calculations: e.g 2 3/5 + 7 1/4?

...this case will be displayed as a decimal rather than a fraction or mixed number. The answer to this particular problem is 9 17/20 or 9.85 It...

11 Answers · Science & Mathematics · 19/02/2008

10. ### Number with 30 decimals calculation?

... of ways of handling many more significant places in calculations. But before I can suggest anything, I need you to do a better...

3 Answers · Computers & Internet · 01/11/2013