1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ray Of Light [21]
2 years ago
11

The discharge of phosphate in detergents to the environment has led to imbalances in the life cycle of freshwater lakes. A chemi

st uses a spectrometric method to measure total phosphate and obtains the following data for known standards: (a) Draw a curve of absorbance vs. phosphate concentration.
Chemistry
1 answer:
alina1380 [7]2 years ago
3 0
<h3>What is spectrometric method?</h3>
  • A technique called spectrophotometry uses light intensity measurements as a beam of light travels through a sample solution to determine how much a chemical compound absorbs light.
  • Every chemical either absorbs or transmits light across a specific spectrum of wavelengths, according to the fundamental principle.
  • There are two main techniques used among the various forms of spectrophotometry:
  • ultraviolet-visible range spectrophotometry, which examines the reflectance of certain spectra,
  • and absorption spectrophotometry, which examines the absorption of radiation and particular spectra of light.
  • Applications of spectrophotometry are useful for determining how well gases, liquids, and solids transmit, reflect, and absorb light.

Learn more about spectrometric method here:

brainly.com/question/18339003

#SPJ4

You might be interested in
For the reaction between aqueous solutions of acetic acid (CH3COOH) and barium hydroxide, Ba(OH)2, 1. Write the balanced molecul
Crazy boy [7]

Answer:

2CH_3COOH(aq)+Ba(OH)_2(aq)\rightarrow Ba(CH_3COO)_2(aq)+2H_2O(l)

Explanation:

When acetic acid solution and barium hydroxide solution react together to give an aqueous solution of barium acetate and water

The balanced chemical reaction will be given by

2CH_3COOH(aq)+Ba(OH)_2(aq)\rightarrow Ba(CH_3COO)_2(aq)+2H_2O(l)

8 0
3 years ago
Helppp plzzz will give brainlist
Maslowich
4. A
because PbCl2 is an ionic compound and it's solid, so it's a substance.
It cannot be mixture, because it's a pure molecule.
5. D
despite that both substances are gases, colorless they are different molecules, so they should have different either chemical and physical properties
6. C
this substance made from W atoms and others are made from molecules
5 0
3 years ago
(Giving brainliest)
Aneli [31]
It would repel some of the negatively charged electrons of the wall so the answer would be C. The wall and the ballon repel each other
4 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! 20 MINS LEFT IM DYING PLS HELP
Zepler [3.9K]

Answer:

Kc = 0.20        

Explanation:

                  N₂O₄     ⇄    2NO₂

moles       5.3mol          2.3mol

Vol               5L                5L

Molarity    5.3/5M        2.3/5M

                = 1.06M     = 0.46M

Kc = [NO₂]²/[N₂O₄] =  (0.46)²/(1.06) = 0.1996 ≅ 0.20

6 0
4 years ago
As you add protons to the nucleus and you add more what happen
Lubov Fominskaja [6]
The more protons you add, the more positively charged the atom becomes 
the charge of an atom determines what kind of an atom it is   <span />
7 0
4 years ago
Other questions:
  • What is the with of the tank in cm that is0.20 meters
    13·1 answer
  • The nucleus of an atom has all of the following characteristics EXCEPT that it
    7·2 answers
  • How does the carbon chain length affect the polarity of an alcohol? What effect does this have on the solubility of the alcohol
    5·1 answer
  • Which of the following factors does not affect a reaction rate?
    13·1 answer
  • Consider the electrolysis of molten barium chloride, BaCl2. (a) Write the half-reactions. (b) How many grams of barium metal can
    7·1 answer
  • 7. In which environment would liverworts and hornworts grow?
    10·1 answer
  • 8. What was the original concentration in the BHL sample, if the dilution is 1:500 and the concentration 0.07 mg/ml
    10·1 answer
  • If a 28.0 L balloon with a temperature of
    15·1 answer
  • 2. What is the name of the compound AIPO?
    7·1 answer
  • 6. What do we call Ethene that has been polymerised?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!