I will do the work here, then explain it:

**1**.**99**mole Zn * (6.022 * 10^23/ 1mole) =**1**.198 * 10^24 ... order to find the number of atoms in**1**.**99**moles of Zn, multiply that number by ...1 Answers · Science & Mathematics · 16/12/2012

MV = mass / molar mass (0.55 mol/L) (

**1**.**99**L) = x / 40.0 g/mol x = 43.78 g Rounded off to two sig figs, 44 g1 Answers · Science & Mathematics · 09/10/2012

Mg + 2 HCl → MgCl2 + H2 ( 1 . 99 g Mg) / (24.30506 g Mg/mol) = 0.081876 mol Mg (0.1000 L...

1 Answers · Science & Mathematics · 30/10/2012

a mole is 6.022 x 10^23 particles. particles include atoms or molecules. so in this example we divide

**1**.**99**x 10^25 by 6.022 x 10^23 = 33.0 mol1 Answers · Science & Mathematics · 09/07/2010

N means normality which is equivalents per liter for acids

**1**equivalent =**1**mole of H+ therefore**1**N HCl =**1**M HCl thus you have**1**mole/liter HCl2 Answers · Science & Mathematics · 29/07/2010

92 U 235 + 0n1 ===> 40 Zr

**99**+ 52 Te 135 + 2 0n1 The atomic numbers must balance on each side. The atomic mass numbers must balance on each side.1 Answers · Science & Mathematics · 18/10/2011

...iodide = 126.9045 g/mol so total = 166.0028g/mol KI (

**1**.**99**g KI)(**1**mol KI / 166.0028g) = 0.0119877 mol KI Notice...sure to have the right significant digits (3), which I did not do for you.2 Answers · Science & Mathematics · 24/05/2011

....C. based modern Rock FM radio station) is

**99**.**1**Mhz. That's where you'll actually find the station on your...2 Answers · Science & Mathematics · 08/11/2007

... for Oxygen is 2. In reality,

**1**.**99**is almost the same with 2. But 2.01 is bigger than 2...1 Answers · Science & Mathematics · 23/04/2012

... have 1997 rounded to its most significant digits

**1**9 and 9. It would either round up to 2000 or down to 1990. Because the...5 Answers · Science & Mathematics · 07/12/2008