Sources of error in colorimetry?

Answers

Answer 1
It is simply not accurate due to many reasons such as environment, user, instrument as well as light which can easily change colours

Related Questions

True or false: The
louder you yell into a
megaphone in space,
the more likely it is for
the sound waves to
travel.

Answers

Answer:

True

Explanation:

This is known as a lapse rate. When you shout something to someone across the lake, the sound waves near the surface end up moving faster than the sound waves higher up. Since the speed is greatest near the ground, sound waves bend upward, causing the audio to be just out of ears reach.

Determine the highest occupied energy level in the
following elements:
a. He
b. Be
c. Al
d. Ca
e. Sn

Answers

He, because it’s a noble gas which they have full valence electrons (occupied energy levels)

why is oxygen more electronegative than hydrogen

Answers

Answer:

The attraction of the Oxygen for an electron as measured by the electronegativity of Oxygen is 3.5 which is higher than the electronegativity of Hydrogen at 2.2

Explanation:

Helpp you will get a brainly

Answers

HC= Hydrocarbon

CH=benzene

Explanation:

HC is Hydrocarbon, how? -- Hydrocarbon, a category of substances consisting only of hydrogen and carbon.

CH is benzene, how? -- benzene is represented by the empirical formula CH, which indicates that a typical sample of the compound contains one atom of carbon (C) to one atom of hydrogen (H).

----(Is this what you meant???)

A sample of Ammonia gas at 650mmHg and 15 degree has a mass of 56.8g.calculate the volume occupied by the gas. Take N=14, H=1,R=8.3145jk.

Answers

Answer:

The first thing we have to do is change and state all the units so that we can use our ideal gas law equation ([tex]PV = nRT[/tex]).

650 mmHg is a pressure unit, we have to convert this to kiloPascals. We know that 760 mmHg gives us 101 kPa.

[tex]650 \ mmHg \ * \ \frac{101kPa}{760 mmHg} = 86 \ kPa[/tex]

P = 86kPa

T = 15°C + 273K = 288K

R (Gas constant) = 8.31 kj/mol  

Molar mass of Ammonia ([tex]NH_{3}[/tex]) = (1 x 3) + (14) = 17g/mol

n (moles) = [tex]\frac{mass}{molar \ mass}[/tex] [tex]= \frac{56.8}{17} =[/tex] 3.34 mol

V = ?

Rearrange the equation to solve for Volume:

[tex]V = \frac{nRT}{P}[/tex]

Substitute the values inside:

V = [tex]\frac{(3.34)(8.31)(288)}{(86)} = 93 L (rounded)[/tex]

Therefore 93 L of volume is occupied by the ammonia gas.

nomenclature of this compound

Answers

Answer:

Nomenclature is the process of naming chemical compounds with different names so that they can be easily identified as separate chemicals. Inorganic compounds are compounds that do not deal with the formation of carbohydrates, or simply all other compounds that do not fit into the description of an organic compound.

Explanation:

Do you think the amount of fat will affect its melting point?

Answers

The amount of fat will affect its melting point

how much evaporated milk equals 1 cup of whole milk?

Answers

Answer:

1/2 cup evaporated milk plus 1/2 cup water.

Explanation:

11. Bacteria and dead cells are removed from circulatory
fluid in the
A) urinary bladder
C) alveoli
B) gallbladder
D) lymph nodes

Answers

Lymph nodes.
The lymphatic system plays as the body’s first line of defense against disease

To solve this we must be knowing each and every concept related to  lymph node. Therefore, the correct option is option D among all the given options.

What is lymph nodes?

A lymph node, sometimes known as a lymphatic gland, is indeed a kidney-shaped lymphatic and immune system component. The lymphatic veins connect a massive amount of lymph nodes to one another throughout the body.

Most lymph nodes lie within the trunk adjacent to other major structures in the body - such as the paraaortic lymph nodes and the tracheobronchial lymph nodes. The lymphatic drainage patterns are different from person to person and even asymmetrical on each side of the same body. Bacteria and dead cells are removed from circulatory fluid in the lymph nodes.

Therefore, the correct option is option D.

To know more about lymph nodes, here:

https://brainly.com/question/29829253

#SPJ2

Types of Reaction

A) Synthesis

B) Decomposition

C) Single displacement

D) Double displacement

E) Combustion

Answers

F - Synthesis

G - Single Displacement

H - Combustion

I - Double Displacement

Hope it helps :)

in sequence from highest to lowest temperature: A) Lithosphere; B) Mantle; C) Core

Answers

The order is Core,Mantle, and Lithosphere or C,B,A

what would happen if we lost our planets core on earth blew up, would we all die or will we lose gravity or suficate, pls help. :I

Answers

Answer: if we lost our core it would be an entire fallout like fallout 76 we would have no way to protect ourselves from the radiation of space except for a select few that actually own astronaut suits tho we would not turn into monsters, sadly :( I wanna be a ghoul

Pb2O4 has a ratio of 2:4. It needs to be reduced to?
A.) 1:0
B.) 2:0
C.) 1:2
D.) 2:2

Answers

Answer:

C

Explanation:

The reason why is because if you divide 2 by 2 you get 1 and 4 divided by 2 is 2. Hope this helps .

!!!SOMEONE HELP !!!
PLEASE

Answers

Answer:

use other websites u might have luck and find ur anwer

Explanation:

(

5

2

)

1

(

5

+

1

)

=

24

4

=

6

(−5+1)

(−5

2

)−1

=

−4

24

=−6

The painkiller, Advil® contains the active ingredient ibuprofen (IB), which has a pKb of
5.20. If the pH of a solution containing a dissolved tablet of Advil® was found to be
8.20, what was the equilibrium concentration (mol/L) of ibuprofen?

IB + H2O ⇀ IBH+ + OH−

A) 3.7 × 10−4
B) 5.5 × 10−5
C) 2.8 × 10−7
D) 4.0 × 10−7
E) 9.2 × 10−7

Answers

This problem is providing the basic dissociation constant of ibuprofen (IB) as 5.20, its pH as 8.20 and is requiring the equilibrium concentration of the aforementioned drug by giving the chemical equation at equilibrium it takes place. The obtained result turned out to be D) 4.0 × 10−7 M, according to the following work:

First of all, we set up an equilibrium expression for the given chemical equation at equilibrium, in which water is omitted for it is liquid and just aqueous species are allowed to be included:

[tex]Kb=\frac{[IBH^+][OH^-]}{[IB]}[/tex]

Next, we calculate the concentration of hydroxide ions and the Kb due to the fact that both the pH and pKb were given:

[tex]pOH=14-8.20=5.80[/tex]

[tex][OH^-]=10^{-5.8}=1.585x10^{-6}M[/tex]

[tex]Kb=10^{-5.20}=6.31x10^{-6}[/tex]

Then, since the concentration of these ions equal that of the conjugated acid of the ibuprofen (IBH⁺), we can plug in these and the Kb to obtain:

[tex]6.31x10^{-6}=\frac{(1.585x10^{-6})(1.585x10^{-6})}{[IB]}[/tex]

Finally, we solve for the equilibrium concentration of ibuprofen:

[tex][IB]=\frac{(1.585x10^{-6})(1.585x10^{-6})}{6.31x10^{-6}}=4.0x10^{-7}[/tex]

Learn more:

(Weak base equilibrium calculation) https://brainly.com/question/9426156

100 POINTS PLZZ HELPP
draw the correct structural formula for the following molecules

Answers

Answer:

I cant see the questions can u do a picture zoomed in, thanks :)

Explanation:

What is the formula of sulfur diphosphide

Answers

[tex] \huge \rm \ \blue \:{ \overbrace{ \underbrace{ \tt{ \color{red}{ \: \: \: \: \: \: answer \: \: \: \: \: \: }}}}}[/tex]

[tex] \huge \color{darkblue}P₂S_{5}[/tex]

hope it helps

Answer:

P2S5

Explanation:

Is bleach liquid starch?
Yes or No

Answers

Answer:

O it's not

Explanation:

Have a great day!

select the best explanation for why methanol, ch3oh, cannot be used as a solvent for the deprotonation of a terminal alkyne by sodium amide, nanh2.

Answers

Answer:

d. Methanol is more acidic than the alkyne and will be deprotonated instead.

Explanation:

because acidity is the ability to lose H+, leaving an anion behind; acidity depends on the stability of the anion.

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