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prisoha [69]
2 years ago
15

What is the relationship between absorbance and transmittance of a sample in a spectrophotometer?

Chemistry
1 answer:
IRISSAK [1]2 years ago
6 0
I’m not 100%sure but I think it would be indirect
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If the pH of vinegar is 3.0, what is the concentration of H+ in vinegar?
Cerrena [4.2K]

Answer: The concentration of H^{+} ions in vinegar is 0.001 M.

Explanation:

Given: pH = 3.0

pH is the negative logarithm of concentration of hydrogen ion.

The expression for pH is as follows.

pH = - log [H^{+}]

Substitute the value into above expression as follows.

pH = - log [H^{+}]\\3.0 = - log [H^{+}]\\conc. of H^{+} = antilog (- 3.0)\\= 0.001 M

Thus, we can conclude that the concentration of H^{+} ions in vinegar is 0.001 M.

5 0
2 years ago
What mass of sodium hydroxide must be heated in order to produce 4.5 g of water?
inysia [295]

Answer:

10 g

Explanation:

5 0
3 years ago
A sample of a gas is placed inside a cylinder that is a fixed size. The cylinder is heated as additional gas is added to it. Wha
makkiz [27]
The pressure of gas will increase because gaseous state is the final state and even if the heat added is evaporating some more gas is still added. It also depends on the temperature of heat added, if the temperature doesn't change the it's most likely for the pressure to be stable...
Hope it helps
4 0
3 years ago
Read 2 more answers
A heated metal object measures 120⁰C. It is dropped into a small bucket filled with water that is 10⁰C. Which of the following i
VARVARA [1.3K]

Answer:

d

Explanation:

(d the water and metal will adjust to the same temperature between 10 degree c and 120 degree c this temperature will be call equilibrium temperature

7 0
2 years ago
How many atoms of copper in 3. 11 g of copper
son4ous [18]
  • Atomic weight of copper = 63.5 g
  • 1 mole of copper contains = 63.5g = 6.023 × 10²³ atoms of copper
  • 1 g of copper contains
  • = \frac{ 6.023  \times  10²³}{63.5}= 9.4 × 10²¹ atoms
  • Therefore, 3.11g of copper contains
  • = 3.11 \times 9.4 \times  {10}^{21}  \\
  • = 29.234 × 10²¹ atoms

Hope you could get an idea from here.

Doubt clarification - use comment section.

4 0
2 years ago
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