Answer:
violet
Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light. Ultraviolet (UV) light—is radiation with a wavelength shorter than that of visible light, but longer than X-rays, in the range 10 nm to 400 .
Explanation:
First we calculate the mass of carbon,
hydrogen and oxygen.
Mass of Carbon;<span>
Molar mass of CO</span>₂ is 44.009g/mol and molar mass of C = 12.011 g/mol
<span>Mass of Carbon in 14.08g CO2</span>₂ = 12.011/44.009 x 14.08 = 3.84
<span>
Mass Hydrogen;
Molar mass H</span>₂O is 18.0015g/mol and molar mass of H is 1.008and H₂ = 2.016
<span>Mass Hydrogen in 4.32g of H</span>₂O = 2.016/18.0015 x 4.32 = 0.48
<span>
<span>Mass of Oxygen
= total mas of tartaric acid – (mass of carbon + mass of hydrogen) = 12.01 -
(3.84+0.48) = 7.69</span>
Now divide carbon, hydrogen and oxygen through
their respective atomic masses: </span>
<span>C = 3.84/12.011 = 0.32
<span>H = 0.48/1.008 = 0.48
<span>O = 7.69/15.999 = 0.48
Now divide by smallest: </span>
C = 0.32/0.32 = 1 </span>
H = 0.48/0.32 = 1.5
O = 0.48/0.32 = 1.5
multiply by 2 to get whole integers: </span>
C = 1 x 2 = 2
H= 1.5 x 2 = 3
<span>O= 1.5 x 2 = 3
<span>Thus, the Empirical formula of tartaric acid =
C</span></span>₂H₃O₃
Answer:
This is False
Explanation:
A chemical change is when the matter is completely changed.
When you have water and boil it to be a gas, it is still the same matter, just in a different form.
I hope this helps :)
Answer:
47.47 g of CO₂ is the amount formed.
Explanation:
The reaction is:
2C₆H₅COOH(aq) + 15O₂(g) → 14CO₂(g) + 6H₂O(l)
Let's apply the formula for the percent yield
Percent yield of reaction = (Produced yield/Theoretical yield) . 100
First of all we convert the moles of CO₂ to mass: 1.30 mol . 44 g /1 mol = 57.2 g. So now, we replace:
(Produced yield / 57.2 g ). 100 = 83
Produced yield / 57.2 g = 83 / 100
Produced yield / 57.2 g = 0.83
Produced yield = 0.83 . 57.2g → 47.47 g of CO₂
Answer: 0.39mol of the steam are in the cooker.
Explanation:Please see attachment for explanation
