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3 years ago

3) Draw vectors to represent these motions:

Chemistry

2 answers:

Sati [7]3 years ago

7 0

I’m confused on the question?

ValentinkaMS [17]3 years ago

7 0

I think the answer is A but i could be wrong

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Which temperature is a greater 400°K or 100 °F*

Murljashka [212]

Answer: 400° kelvin

Explanation:

400° k translates to about 260° fahrenheit, and 260 > 100!

just ask if you need it in celsius :3

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3 years ago

Read 2 more answers

0.456 grams of a monoprotic acid is titrated with 45.88 mL of 0.0500 M NaOH. What is the molecular mass (molar mass) of the acid

aivan3 [116]

Answer:

$Molar\ mass= 198.78\ g/mol$

Explanation:

Considering:

$Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}$

$Moles =Molarity \times {Volume\ of\ the\ solution}$

Given :

For NaOH :

Molarity = 0.0500 M

Volume = 45.88 mL

The conversion of mL to L is shown below:

1 mL = 10⁻³ L

Thus, volume = 45.88×10⁻³ L

$Moles_{NaOH} =0.0500 \times {45.88\times 10^{-3}}\ moles=0.002294\ moles$

Moles of NaOH = Moles of monoprotic acid

So, moles of monoprotic acid = 0.002294 moles

Given that:- mass = 0.456 g

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$0.002294\ moles= \frac{0.456\ g}{Molar\ mass}$

$Molar\ mass= 198.78\ g/mol$

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4 years ago

What is the structural formula for 2-methyl 3-ethylbutane?

ivann1987 [24]

Answer:

Explanation:

2-methyl-3-ethylpentane | C8H18 | ChemSpider.

Boiling Point: 115.3±7.0 °C at 760 mmHg

Molecular Formula: C8H18

Density: 0.7±0.1 g/cm 3

Enthalpy of Vaporization: 32.9±0.0 kJ/mol

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4 years ago

In which of the following areas is understanding chemistry NOT necessary?

Lyrx [107]

The answer is Human behavior.

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3 years ago

Observe the concentrations of the hydronium ions(H3O+), hydroxide ions(OH-), and water (H2O) in the “Water Components” chart on

tia_tia [17]

FOLLOWING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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3 years ago