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
juin [17]
3 years ago
13

What test would you use to identify a solution of fecl3

Chemistry
1 answer:
uysha [10]3 years ago
4 0

Answer:

Ferric chloride test

Explanation:

The ferric chloride test can be used to detect metabolites in urine in case of inborn error of metabolism such as phenylketonuria. Compounds such as phenylpyruvate increase in plasma and are excreted out via urine. Also, it can be used to detect salicylates in urine, quick diagnostic test for aspirin overdose.

You might be interested in
This table resembles a condensed version of the modern periodic table. Using the full periodic table as a reference, type the sy
Mekhanik [1.2K]

re write the question.

Explanation:

it seems incomplete.

5 0
2 years ago
Which statement best describes the way a catalyst works?
bogdanovich [222]

Answer: E. It decreases the value of Eact.

Explanation:

Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.

A catalyst is a substance which increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and more molecules convert to products.

The catalyst itself does not take part in the chemical reaction and is regenerated as such at the end.

6 0
3 years ago
The isotope 238U, which starts one of the natural radioactive series, decays first by alpha decay followed by two negative beta
Digiron [165]

Answer: The resulting isotope is ^{231}_{92}\textrm {U}

Explanation:

Alpha Decay: In this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. The mass number is reduced by 4 units and atomic number is reduced by 2 units.

^{235}_{92}\textrm{U} \rightarrow ^{231}_{90}\textrm {Th}+^{4}_{2}n

Beta Decay : It is a type of decay process, in which a proton gets converted to neutron and an electron. This is also known as -decay. In this the mass number remains same but the atomic number is increased by 1.

^{231}_{90}\textrm{Th}\rightarrow ^{231}_{92}\textrm {Th}+2^{0}_{-1}n

The resulting isotope is ^{231}_{92}\textrm {U}

6 0
2 years ago
Es posible identificar los sistemas dispersos por su apariencia, y porque
jekas [21]

Answer:

english please...?

Explanation:

8 0
3 years ago
Given the following information: Mass of proton = 1.00728 amu Mass of neutron = 1.00866 amu Mass of electron = 5.486 × 10^-4 amu
lesya692 [45]

<u>Answer:</u> The nuclear binding energy of the given element is 2.938\times 10^{12}J/mol

<u>Explanation:</u>

For the given element _3^6\textrm{Li}

Number of protons = 3

Number of neutrons = (6 - 3) = 3

We are given:

m_p=1.00728amu\\m_n=1.00866amu\\A=6.015126amu

M = mass of nucleus = (n_p\times m_p)+(n_n\times m_n)

M=[(3\times 1.00728)+(3\times 1.00866)]=6.04782amu

Calculating mass defect of the nucleus:

\Delta m=M-A\\\Delta m=[6.04782-6.015126)]=0.032694amu=0.032694g/mol

Converting this quantity into kg/mol, we use the conversion factor:

1 kg = 1000 g

So,  0.032694g/mol=0.032694\times 10^{-3}kg/mol

To calculate the nuclear binding energy, we use Einstein equation, which is:

E=\Delta mc^2

where,

E = Nuclear binding energy = ? J/mol

\Delta m = Mass defect = 0.032694\times 10^{-3}kg/mol

c = Speed of light = 2.9979\times 10^8m/s

Putting values in above equation, we get:

E=0.032694\times 10^{-3}kg/mol\times (2.9979\times 10^8m/s)^2\\\\E=2.938\times 10^{12}J/mol

Hence, the nuclear binding energy of the given element is 2.938\times 10^{12}J/mol

3 0
3 years ago
Other questions:
  • The average atomic mass recorded on the periodic table for cobalt is 58.933 u. This indicates that the most abundant isotope of
    5·1 answer
  • What is a flammable mixture of many different substances
    5·1 answer
  • n acid with a pKa of 8.0 is present in a solution with a pH of 6.0. What is the ratio of the protonated to the deprotonated form
    9·1 answer
  • What do sedimentary rock layers reveal about ancient environments?
    13·1 answer
  • You only have 15g of sodium to use for this reaction. how much copper(ii must you combine with the sodium to isolate the maximum
    12·1 answer
  • Why do atoms fond bonds​
    15·1 answer
  • Iodine 131, cesium 137, and strontium 90 are all considered isotopes. What are isotopes?
    15·2 answers
  • The nucleus of the eukaryotic cell is important because it
    6·1 answer
  • Joshua wants to create something to put between a hot pot and a table, so he doesn't burn the table. He
    9·1 answer
  • the temperature is increased, the position of equilibrium moves to the left, and the yield of ammonia decreases.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!