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tangare [24]
3 years ago
12

Can you measure tenths if a gram with confidence using balance?

Chemistry
1 answer:
hram777 [196]3 years ago
7 0
It depends on the calibration and sensitivity of the balance. If you’re using a lab balance, then yes. Most lab balances are calibrated to the hundredths at a minimum. Take time to tare the scale correctly, and give the sample enough time on the scale to reach a definite number.
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A 6.50x10^-5 m solution of potassium permanganate has a percent transmittance of 27.3% when measured in a 1.15 cm cell at a wave
mihalych1998 [28]
For this problem, we use the Beer Lambert's Law. Its usual equation is:

A = ∈LC
where
A is the absorbance
∈ is the molar absorptivity
L is the path length
C is the concentration of the sample solution

As you notice, we only have to find the absorbance. But since we are not given with the molar absorptivity, we will have to use the modified equation that relates % transmittance to absorbance:

A = 2 - log(%T)
A = 2 - log(27.3)
A = 0.5638
7 0
3 years ago
I want to know if it is true or false​
denpristay [2]

Answer:

wheres the question or picture

Explanation:

3 0
3 years ago
Read 2 more answers
which idea did john dalton include in his atomic theory? a. all atoms are the same size. b. atoms of the same element are identi
lapo4ka [179]
It might be c, because he came up with the plum pudding model.  or it might be that atoms of the same element are identical, but that's not true cuz ions are different and isotopes are different.
5 0
3 years ago
When two fluorine atoms bond together in F2, what type of covalent bond do they form?
makvit [3.9K]

When two  fluorine  atoms  bond  together  in f2  the  type of covalent  bond   do they  form is non-polar covalent   bond.


  Explanation

They are  two type of covalent bond.  that is non polar covalent bond and  polar covalent  bond.


Non polar  covalent  bond  is formed  when atoms share  a pair  of electrons  with each other  equally.

polar covalent  bond is bond formed when  atoms share  a pair   electrons unequally.


 F2  is a non polar  since  it is made  up of two  same atoms   which  has  the  same electronegativity, therefore equal number of electrons exist  in the  orbital overlap.


4 0
3 years ago
Read 2 more answers
A graph with horizontal axis time (seconds) and vertical axis position (meters). An orange line runs straight upward from 0 seco
OLga [1]

Answer:

Let's start by using the definition of acceleration. Acceleration is defined as the change in velocity over the change in time. In equation, that would be Δvelocity/Δtime. Based on the axes of the given graph, it shows the trend of position over time. So, the slope of the line and the curve shows the change of position over change of time, Δdistance/Δtime. In physics, this is the definition of speed or velocity. So, Maia is incorrect. Both curves show the speed or velocity of the object, and not acceleration.  If the graph used a y-axis of velocity instead of position, then only at that instance, would be Maia be correct.

The difference between the two is, the straight line shows constant velocity while the curve line shows changing velocity.

Explanation:

6 0
3 years ago
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