3 years ago

8. What is the molecular formula of a compound if 0.50 moles of it contains 0.50

Chemistry

1 answer:

11Alexandr11 [23.1K]3 years ago

3 0

Answer:

Explanation:

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At a certain temperature the rate of this reaction is first order in SO₃ with a rate constant of 0.208 s⁻¹:

NNADVOKAT [17]

Answer:

0.30 M

Explanation:

Using integrated rate law for first order kinetics as:

$[A_t]=[A_0]e^{-kt}$

Where,

$[A_t]$ is the concentration at time t = ?

$[A_0]$ is the initial concentration = 1.36 M

k is the rate constant = 0.208 s⁻¹

t = 7.30 seconds

So,

$[A_t]=1.36\times e^{-0.208\times 7.30}\ M=0.30\ M$

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2 years ago

A sample of liquid mercury is heated from 20°C to 40°C. Which measurement of the sample will increase during this process? volum

Paladinen [302]

its volume this is the answer because the mercury will turn into gas. gas has more volume because it takes up more space as it spreads.

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3 years ago

Is sisig is homogeneous or heterogeneous

givi [52]

Answer:

I think its homogeneous

Explanation:

because its all pig, just different parts of the pig

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2 years ago

How many moles of O2 are consumed if 20 moles of SO2 are produced

tatiyna

Answer:

I hope this helps

5 0

2 years ago

A compound has a molar mass of 90. grams per mole and the empirical formula CH2O. What is the molecular formula of this compound

k0ka [10]

Answer:

C₃H₆O₃

Explanation:

Data:

EF = CH₂O

MM = 90. g/mol

Calculations:

EF Mass = (12.01 + 2.016 + 16.00) u = 30.03 u

The molecular formula is an integral multiple of the empirical formula.

MF = (EF)ₙ

$n = \dfrac{\text{MF Mass}}{\text{EF Mass }} = \dfrac{\text{90. u}}{\text{30.03 u}} = 3.00 \approx 3$

MF = (CH₂O)₃ = C₃H₆O₃

7 0

3 years ago