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likoan [24]
3 years ago
11

PLS HELP!!!!! 30 POINTS!!!!

Chemistry
2 answers:
katen-ka-za [31]3 years ago
8 0

Answer:

The picture is not there

Lapatulllka [165]3 years ago
5 0

Answer:

1. accurate but not precise

2. precise but not accurate

3. accurate and precise

4. neither

Explanation:

hope this helps :)

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Calculate the grams of solute in each of the following solution: 278 mL of 0.038 M Fe2(SO4)3
Goryan [66]

Answer:  4.22 grams of solute is there in 278 ml of 0.038 M Fe_2(SO_4)_3

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n}{V_s}

where,

n = moles of solute

V_s = volume of solution in L

Now put all the given values in the formula of molality, we get

0.038M=\frac{n}{0.278L}

n=0.0105mol  

mass of  Fe_2(SO_4)_3 = moles\times {\text {Molar Mass}}=0.0105\times 399.88g/mol=4.22g

Thus 4.22 grams of solute is there in 278 ml of 0.038 M Fe_2(SO_4)_3

3 0
3 years ago
A ball is thrown at a reflecting surface (mirror) as shown. A video camera is placed in line with the reflected path of the ball
Oksanka [162]

Explanation:

The video camera will record

A ball moving towards the camera, initially faster and then slower.  

5 0
2 years ago
What would happen if you took a normal shaped bottle, sailed it at 1,000 feet, and then carried it up to 14,000 feet
Dovator [93]

it would go 15000 feet

4 0
3 years ago
Read 2 more answers
Why is it difficult to accurately represent ammonia and methane on paper?
andrew-mc [135]

Answer:

The correct answer is because the molecular structure.

Explanation:

The difficulty of ammonia and methane to be represented on paper is due to the molecular structure. These compounds have a three-dimensional projection with defined angles. Ammonia presents angles of 109.5º between the atom of Nitrogen and those of Oxygen. The ammonia presents 107.8º between the oxygen atoms.

In the methane molecule, there is 109.5º between the hydrogen molecules and the carbon atom. This results in the need for a 3D representation of the molecule.

Have a nice day!

6 0
3 years ago
PLS I NEED HELP with steps WILL GIVE BRAINLIEST
RideAnS [48]

Answer:

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