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
jeka94
3 years ago
9

Can someone help me please​

Chemistry
1 answer:
Bess [88]3 years ago
5 0

Answer:

it's d

Explanation:

I took the test and got it right

You might be interested in
1. Which answer best describes this reaction?
Gre4nikov [31]
Hhhhhhhhchchhchchchchchchchchchchchchchchc
6 0
3 years ago
What is the change of e-
Afina-wow [57]
E- is a negative electron
6 0
3 years ago
List three organelles found in cells and describe their functions.
kozerog [31]

nucleus: controls cell

cell membrane: controls what goes in and out of a cell

cytoplasm: where chemical reactions take place

3 0
3 years ago
Read 2 more answers
An FAS calibration curve (absorbance, y-axis vs. FAS in g/mL) gave an equation he regression line of: y-3678(x)+0.056. If an unk
mezya [45]

Answer:

FAS concentration = 1.61*10^-4M

Explanation:

Beer Lambert's law relates the absorbance (A) of a substance to its concentration (c) as:

A = \epsilon lc----(1)

where ε = molar absorption coefficient

l = path length

A plot of 'A' vs 'c' gives a straight line with slope = εl

In addition absorbance (A) is related to % Transmittance (%T) as:

A = 2-log%T----(2)

For the FAS solution, the corresponding calibration fit is given as:

y = 3678(x) + 0.056

This implies that the slope = εl = 3678

It is given that %T = 25.6%

A = 2-log(25.6)=0.592

Based on equation(1):

c = \frac{A}{\epsilon l}=\frac{0.592}{3678}=1.61*10^{-4}M

8 0
3 years ago
5)
Kryger [21]

The empirical formula : C₁₂H₄F₇

The molecular formula : C₂₄H₈F₁₄

<h3>Further explanation</h3>

mol C (MW=12 g/mol)

\tt \dfrac{18.24}{12}=1.52

mol H(MW=1 g/mol) :

\tt \dfrac{0.51}{1}=0.51

mol F(MW=19 g/mol)

\tt \dfrac{16.91}{19}=0.89

mol ratio of C : H : O =1.52 : 0.51 : 0.89=3 : 1 : 1.75=12 : 4 : 7

Empirical formula : C₁₂H₄F₇

(Empirical formula)n=molecular formula

( C₁₂H₄F₇)n=562 g/mol

(12.12+4.1+7.19)n=562

(281)n=562⇒ n =2

Molecular formula : C₂₄H₈F₁₄

6 0
3 years ago
Other questions:
  • Which is more metallic<br> a) Gold<br><br> b) Bismuth
    11·1 answer
  • Everything to know about on acids and alkalines plz help me !!!
    5·1 answer
  • What are the industrial conditions used in the Haber process and why?
    12·1 answer
  • Gaseous methane CH4 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. If 12.4g of c
    7·1 answer
  • Which statement is true for a solution when its concentration of hydroxide ions becomes equal to the concentration of hydronium
    11·2 answers
  •  Based on the size and shape of the clasts in the sedimentary rock shown in the image, which classification would geologists mos
    13·2 answers
  • For the chemical reaction C2H6 --&gt; C2H4 + H2 + 137kJ, the chemical energy of the
    15·1 answer
  • Completely classify jet fuel.
    8·1 answer
  • What is the ph of a solution that has 0.075 m ch3cooh and 0.050m nach3coo present? ka for acetic acid = 1.80 x 10-5?
    14·1 answer
  • Refer to the table . Which plants would most likely be found in the rain forest
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!