Answer:
20 mol H₂
General Formulas and Concepts:
<u>Chem</u>
Explanation:
<u>Step 1: Define</u>
RxN: C + H₂ → CH₄
8 moles CH₄
<u>Step 2: Balance RxN</u>
C + 2H₂ → CH₄
<u />
<u>Step 3: Stoichiometry</u>
= 16 mol H₂
<u>Step 4: Check</u>
<em>We are given 1 sig fig. Follow sig fig rules.</em>
16 mol H₂ ≈ 20 mol H₂
Answer: A volume of 600 mL of 3.0 M 
solution can be prepared by using 100.0 mL OF 18 M .
Explanation:
Given: 
= ?, 
, 
Formula used to calculate the volume is as follows.
Substitute the values into above formula as follows.
Thus, we can conclude that a volume of 600 mL of 3.0 M solution can be prepared by using 100.0 mL OF 18 M .
For the first one i know for sure its C. You normally find it as a white or white ish color
hope this helps
In order to calculate the percentage composition of a certain element, certain steps are followed:
1- You get the the molar mass of the component you wish to find its percentage in units of gm/mole.
2- You then get the molar of the whole given compound
3- You the divide the molar mass of the desired component by the total molar mass of the compound and then multiply the output by 100 to get the percentage.
As you can see, calculating the percentage is dependent on the mass and not the volume
Electromagnetic Radiation. Do you listen to the radio, watch TV, or use a microwave oven? All these devices make use of electromagnetic waves. Radio waves, microwaves, visible light, and x rays are all examples of electromagnetic waves that differ from each other in wavelength.
