2 years ago

Why did she leave me?

Chemistry

2 answers:

diamong [38]2 years ago

7 0

Answer:

She left when she saw joe

Explanation:

yes

alina1380 [7]2 years ago

4 0

Answer:

cause men are disgusting

Explanation:

You might be interested in

BALANCE THIS EQUATION: C4H10 + O2 = C02 + H20

Lostsunrise [7]

Answer:

${ \rm{C _{4} H_{10}+ \frac{13}{2} O _{2} = 4C0 _{2} + 5H _{2}0}} \\$

5 0

3 years ago

What is the name for 3Na2SO4

Whitepunk [10]

Sodium sulfate is the answer you are looking for

4 0

3 years ago

Read 2 more answers

How many atoms are in 1.6g C? Answer in units of atoms. (no answer choices were given)

maksim [4K]

Answer:

6.022 ×10(index 23) / 7.5 = 0.8293 ×10(index 23)

Explanation:

molar mass of C = 12gmol

therefore in 12g of C there is one mole or an amount of 6.022 ×10(index 23)

∴12g/6.02210(index 23) ×1.6g

3 0

3 years ago

Is exploding dynamite a chemical or physical property?

ankoles [38]

the answer would be chemical

5 0

3 years ago

6) (a) Calculate the absorbance of the solution if its concentration is 0.0278 M and its molar extinction coefficient is 35.9 L/

Anvisha [2.4K]

Answer:

6) (a) 0.499; (b) 31.7 %

7) 0.15

Explanation:

6) (a) Absorbance

Beer's Law is

$A = \epsilon cl\\A = \text{35.9 L&\cdot$mol$^{-1}$cm$^{-1}$} $\times$ 0.0278 mol$\cdot$L$^{-1} \times $ 0.5 cm = \mathbf{0.499}$

(b) Percent transmission

$A = \log {\left (\dfrac{1}{T}}\right)}\\\\\%T = 100T\\\\T = \dfrac{\%T}{100}\\\\\dfrac{1}{T} = \dfrac{100 }{\%T}\\\\A = \log \left(\dfrac{100 }{\%T} \right ) = 2 - \log \%T\\\\0.499 = 2 - \log \%T\\\\\log \%T = 2 - 0.499 = 1.501\\\\\%T = 10^{1.501} = \mathbf{31.7}$

7) Absorbance

$A = \log \left (\dfrac{I_{0}}{I} \right ) = \log \left (\dfrac{I_{0}}{0.70I_{0}} \right ) = \log \left (\dfrac{1}{0.70} \right ) = -\log(0.70) = \mathbf{0.15}}$

8 0

3 years ago