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2 years ago

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On combustion of 0.2 gm of organic compound gave 0.147g of CO2, 0.12g of H2O and 74.6 ml of nitrogen gas at STP. Find emperical

formula of compound.?

1 answer:

zhuklara [117]2 years ago

5 0

Answer:

0.2 is conpound Co2 STP.

Explanation:

on combustion of 0.2 gm of organic compound gave 0.147g of CO2, 0.12g of H2O and 74.6 ml of nitrogen gas at STP. Find emperical formula of compound.?

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16&17<br> Help please lol thanks

BigorU [14]

Answer: HMMMM

Explanation:

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3 years ago

guys please help me i've been struggling with this question all school day (what reaction is ___ Mg + ____ H₂SO₄ --> ____ H₂

love history [14]

Answer:

Single replacement reaction

Explanation:

It's already balanced so it would just be Mg + H2SO4 --> H2 + MgSO4

The formula for a single replacement reaction is

A + BC --> B + AC

A=Mg

B=H2

C=SO4

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2 years ago

Which of the following could have caused curve B to be different from curve A?

Mamont248 [21]

A. More reactants could have been added to reaction B

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3 years ago

Read 2 more answers

Microwave ovens work by irradiating food with microwaves, which are absorbed by the water molecules in the food and converted to

snow_tiger [21]

Answer:

$7.45\times 10^{26}$ photons are emitted per second in a $1\times 10^3$ Watt microwave oven.

Explanation:

The expression for the power is:-

$Power=\frac{Energy}{Time}$

Also, $E=n\times \frac{h\times c}{\lambda}$

Where,

n = the number of photons

h = Plank's constant having value $6.626\times 10^{-34}\ Js$

c = the speed of light having value $3\times 10^8\ m/s$

$\lambda$ = the wavelength of the light

So,

$Power=\frac{n}{Time}\times \frac{h\times c}{\lambda}$

Thus, the expression for photons per second is:-

$\frac{n}{Time}=\frac{Power\times \lambda}{h\times c}$

Given that:-

Power = 10³ Watt

( 1 cm = 0.01 m)

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So,

$Photon/sec=\frac{10^{3}\times 0.148}{6.626\times 10^{-34}\times 3\times 10^8}=7.45\times 10^{26}$

$7.45\times 10^{26}$ photons are emitted per second in a $1\times 10^3$ Watt microwave oven.

7 0

2 years ago

Which non metals have similar chemical properties

mina [271]

Answer:

Chemical Properties of Nonmetals :

Nonmetals are poor conductors of heat and electricity. ...

Unlike metals, nonmetals aren't malleable and ductile.

Nonmetals react more with metals than with nonmetals.

Usually, nonmetals react with other nonmetals in high temperature.

Most nonmetals do not react with air in room temperature.

8 0

3 years ago