3 years ago

Help with this question for chemistry!!

Chemistry

1 answer:

wel3 years ago

7 0

Emperic formula is SO subscript 2. Molecular formula would be SO subscript 2 multiply 1 so it's the same answer.

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At another temperature, the rate constant is 3.25 M-2 s-1. What is the rate at this temperature for the

brilliants [131]

Answer:

It's 0.00015

Explanation:

got it right on edge 2021

4 0

3 years ago

Calculate the density of a 20.015 g object that occupies 5.44 cm3 .

Scilla [17]

Answer:

$density = \frac{mass}{volume} \\ \\ density = \frac{20.015}{5.44} \\ \\ { \boxed{ \boxed{density = 3.679 \: g {cm}^{ - 3} }}}$

5 0

3 years ago

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How many moles of sf6 are there in 459500000000000000 molecules of sf6

Vlada [557]

Answer : The number of moles of $SF_6$ is, $7.63\times 10^{-7}$ moles.

Solution :

As we know that,

1 mole contains $6.022\times 10^{23}$ number of molecules

As, $6.022\times 10^{23}$ number of molecules of $SF_6$ are present in 1 mole of $SF_6$

So, $4595\times 10^{14}$ number of molecules of $SF_6$ are present in $\frac{4595\times 10^{14}}{6.022\times 10^{23}}=7.63\times 10^{-7}$ moles of $SF_6$

Therefore, the number of moles of $SF_6$ is, $7.63\times 10^{-7}$ moles.

5 0

3 years ago

What is the molarity of 70.6 g C2H6O in 2.25 L of solution

myrzilka [38]

Hey there!

Molar mass C2H6O = 46.0684 g/mol

Number of moles:

n = mass of solute / molar mass

n = 70.6 / 46.0684

n = 1.532 moles

Therefore:

M = number of moles / volume ( L )

M = 1.532 / 2.25

= 0.680 M

Hope that helps!

7 0

4 years ago

a gas has a volume of 45.0 mL and a pressure of 760.0 mm. If the pressure increased to 850.0 mm and the temperature remained the

tankabanditka [31]

Answer:

40 mL

Explanation:

V2=P1V1/P2

You can check this by knowing that P and V at constant T have an inverse relationship. Hence, this is correct.

8 0

4 years ago