Answer:
The wavelength decreases
Explanation:
As you go along the EM spectrum from radio waves to gamma rays, the wavelength decreases as the wave's energy and frequency increase.
The question is incomplete, here is the complete question:
In the lab, keith has two solutions that contain alcohol and is mixing them with each other. Solution A is 20 % alcohol and Solution B is 6 % alcohol. He uses 400 milliliters of Solution A. How many milliliters of Solution B does he use, if the resulting mixture is a 12% alcohol solution?
<u>Answer:</u> The volume of solution B used is 533.3 mL
<u>Explanation:</u>
We are given:
Volume percent of alcohol in solution A = 20 %
Volume percent of alcohol in solution B = 6 %
Let the volume of solution B used be 'x' mL
Volume of solution A used in the mixture = 400 mL
Total volume of the mixture = (400 + x) mL
Calculating the volume of solution B used:
Hence, the volume of solution B used is 533.3 mL
<u>Given:</u>
Volume of HCl (VHCl) = 25,0 ml = 0.025 L
Volume of NaOH (VNaOH) = 22.15 ml = 0.02215 L
Molarity of NaOH (MNaOH) = 0.155 M
<u>To determine:</u>
Molarity of HCl
<u>Explanation:</u>
Titration reaction-
HCl + NaOH → NaCl + H2O
Based on the reaction stoichiometry:
1 mole NaOH requires 1 mole HCl
# moles of NaOH = VNaOH * MNaOH = 0.02215*0.155 = 0.003433 moles
# moles of HCl = # moles of NaOH = 0.003433 moles
Molarity of NaOH = 0.003433/0.025 = 0.137 M
Answer:
b.materials input quantity
Explanation:
A cost of production report shows the following:
- total and unit costs transferred from preceding department
- materials, labor , factory Overhead added by the department
- unit costs added by the department
- total and unit costs accumulated to the end of operations
- the cost of beginning and ending work in process inventories
- the cost transferred to the next department
A cost of production report determines periodic total and unit costs.
Either in the cost of production report or in the supporting schedule each item of material used is listed, every labor operation is shown separately,factory overhead components are noted individually, and a unit cost is derived for each item.
A Quantity Schedule Of Cost of Production report shows the following
- units started in process
- units transferred to next department
- units still in process
- units lost in process
Sir Joseph John Thomson, also known as J. J. Thomson