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3 years ago

List 2 everyday examples for decanting centrifuge filtration

1 answer:

7 0

Answer:decanting is done when decanting the liquid before using mustard in order to make a less messy hotdog,when frying hamburger meat for spaghetti source you decant the grease from the pan

filtration is used in heating,ventilation,air conditioning systems at home in order to remove particles and somites odours and chemicals

Explanation:

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The empirical formula of a compound is CH2O and its molecular weight is 90.09 g/mol. Determine the molecular formula.

Pachacha [2.7K]

Answer : The molecular formula of the compound will be, $C_{3}H_{6}O_3$

Explanation :

Empirical formula : It is the simplest form of the chemical formula which depicts the whole number of atoms of each element present in the compound.

Molecular formula : it is the chemical formula which depicts the actual number of atoms of each element present in the compound.

For determining the molecular formula, we need to determine the valency which is multiplied by each element to get the molecular formula.

The equation used to calculate the valency is :

$n=\frac{\text{molecular mass}}{\text{empirical mass}}$

As we are given that the empirical formula of a compound is $CH_2O$ and the molar mass of compound is, 90.09 gram/mol.

The empirical mass of $CH_2O$ = 1(12) + 2(1) + 1(16) = 30 g/eq

$n=\frac{\text{molecular mass}}{\text{empirical mass}}$

$n=\frac{90.09}{30}=3$

Molecular formula = $(CH_2O)_n=(CH_2O)_3=C_{3}H_{6}O_3$

Thus, the molecular formula of the compound will be, $C_{3}H_{6}O_3$

7 0

3 years ago

How many moles of neon gas are there 25.0 L of gas or 5.0°C with a pressure of 89.9 KPa?

vladimir2022 [97]

Volume=25L
Temperature=5°C
Pressure=89.9kPa

Now

$\\ \rm\rightarrowtail PV=nRT$

$\\ \rm\rightarrowtail n=\dfrac{PV}{RT}$

$\\ \rm\rightarrowtail n=\dfrac{89.9(25)}{5R}$

$\\ \rm\rightarrowtail n=89.9(5)/R$

$\\ \rm\rightarrowtail n=449.5/R mol$

8 0

2 years ago

methane is a flammable compound made of carbon and hydrogen atoms. how could you seperate the carbon and hydrogen in methane

sergiy2304 [10]

As we know methane is an Alkane to separate an Alkane We use fractional distillation to put each liquid into its fraction with the right temperature group

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3 years ago

Ron wants to install an energy efficient and long lasting device for lighting in his new home. Which device should he use?

Vlada [557]

He should use the long lasting one

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3 years ago

Read 2 more answers

Help me ASAP !!! Thank youuu

Neporo4naja [7]

Answer:

uhh the first one is the baby plants are gentically simulator to the parent if its wrong im sorry