Calcium has a charge of 2+ and iodine has a charge of 1-. Use the criss cross method and criss cross the charges and write them as subscripts. The formula is CaI2.
Answer:
n ≈ 2.42 moles
General Formulas and Concepts:
<u>Chem</u>
Ideal Gas Law: PV = nRT
- P is pressure in mmHg
- V is volume in liters
- n is number of moles
- R is a constant (62.4 L · mmHg/mol · k)
- T is temperature in Kelvins
K = °C + 273
Explanation:
<u>Step 1: Define</u>
V = 50.2 L
P = 755 mmHg
T = -22.0°C = 251 K
<u>Step 2: Find moles </u><em><u>n</u></em>
(755 mmHg)(50.2 L) = n(62.4 L · mmHg/mol · k)(251 K)
37901 mmHg · L = n(15662.4 L · mmHg/mol)
n = 2.41987 moles
<u>Step 3: Check</u>
<em>We are given 3 sig figs. Follow sig fig rules.</em>
2.41987 moles ≈ 2.42 moles
The ratios would remain the same for both elements, so it would be 1.5 times the mass of sodium in 100 grams.
1.5 * 39.34 grams Na = 59.01 grams Na
<em>if u mix them ammonia will react with H2o2 to give N2 </em>
<em>since N2 is highly stable a lot of energy will be released in the reaction. </em>
<em>Hence the reaction will be explosive </em>
It means there is a lot of the same thing and not many others