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Alex
3 years ago
12

What is the formula for calculating the speed

Chemistry
2 answers:
Natali [406]3 years ago
5 0

Answer:

Speed=distance/time

Explanation:

sveta [45]3 years ago
5 0

Answer:

\huge \boxed{S =\frac{d }{t} }

\rule[225]{225}{2}

Step-by-step explanation:

The formula to find speed is as follows:

\Longrightarrow \ \  \displaystyle \sf speed =\frac{distance \ travelled }{time \ taken}

\Longrightarrow \ \  \displaystyle S =\frac{d }{t}

\rule[225]{225}{2}

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3 years ago
what is the concentration of hydroxide ions after 50.0 ml of 0.250 m naoh is added to 120 ml of 0.200 m na2so4? please show all
Galina-37 [17]

The concentration of the hydroxide ions after 50 ml of 0.250M NaOH is added to 120ml of 0.200M Na2SO4 is 7.35 x 10^-2 M.

What is meant by concentration?

Concentration is the total amount of solute present in the given volume of solution. this is expressed in terms of molarity, molality, mole fraction, normality etc. The term concentration mostly refers to the solvents and solutes present in the solution.

Concentration of hydroxide ions can be calculated by,

M (OH^-) = V (NaOH) x M (NaOH) / V (total) = 50ml x 0.250M / 50ml + 120ml = 0.0735M = 7.35 x 10^-2 M.

where M (OH^-) = concentration of hydroxide ions, V(NaOH) = volume of NaOH, M(NaOH) = concentration of NaOH.

Therefore, the concentration of the hydroxide ions after 50 ml of 0.250M NaOH is added to 120ml of 0.200M Na2SO4 is 7.35 x 10^-2 M.

To learn more about concentration click on the given link brainly.com/question/17206790

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9 months ago
Explain the sharing of electrons between a water molecule that forms four hydrogen bonds with the other four water molecules
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Answer:

The sharing of electrons between a water molecule that forms four hydrogen bonds with the other four water molecules:

Explanation:

The hydrogen bond is a weak electrostatic force of attraction that exists between a covalently bonded H-atom and a highly electronegative atom like N,O or F.

In the case of the water molecule,

the highly electronegative atom is Oxygen and the intermolecular hydrogen bond in water is as shown below:

Thus H-bond is a weak electrostatic attraction formed between H-atom and O-atom in water.

8 0
3 years ago
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