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3 years ago

PLEASE HURRY!!

Chemistry

1 answer:

AysviL [449]3 years ago

8 0

Answer:

Molar mass of acetic acid is 60 g/mol

Explanation:

Look at the formula:

CH₃COOH

We have:

2 moles of C → 12.011 amu . 2 = 24 g/mol
4 moles of H → 1.008 amu . 4 = 4 g/mol
2 moles of O → 15.999 amu . 2 = 32 g/mol

Let's sum the mass of each element

24 g/mol + 4 g/mol + 32 g/mol = 60 g/mol

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When you rub your palms together,

Roman55 [17]

Answer:

sliding friction occurs

4 0

3 years ago

Read 2 more answers

Calculate the molarity of a solution of sodium hydroxide, naoh, if 23.64 ml of this solution is needed to neutralize 0.5632 g of

GuDViN [60]

The molarity of NaOH needed is calculated as follows
calculate the moles of KhC8h4O4

that is moles = mass/molar mass of KhC8h4O4(204.22 g/mol)

=0.5632g /204.22g/mol= 2.76 x10^-3 moles

write the equation for reaction

khc8h4O4 + NaOH ---> KNaC8h4O4 + H2O

from the equation above the reacting ratio of KhC8h4O4 to NaOh is 1:1 therefore the moles of Naoh is also 2.76 x10^-3 moles

molarity of NaOh = (moles of NaOh / volume ) x 1000

that is { (2.76 x10^-3) / 23.64} x100 =0.117 M

8 0

3 years ago

Be sure to answer all parts.

Marianna [84]

a)3^2 = 9 times

b)2^2*2 = 8 times

c)(1/2) = half times

7 0

3 years ago

At the start of a reaction, there are 0.0249 mol N2,

gladu [14]

Answer:

Explanation:

The reaction is given as:

$N_{2(g)} + 3H_{2(g)} \to 2NH_{3(g)}$

The reaction quotient is:

$Q_C = \dfrac{[NH_3]^2}{[N_2][H_2]^3}$

From the given information:

TO find each entity in the reaction quotient, we have:

$[NH_3] = \dfrac{6.42 \times 10^{-4}}{3.5}\\ \\ NH_3 = 1.834 \times 10^{-4}$

$[N_2] = \dfrac{0.024 }{3.5}$

$[N_2] = 0.006857$

$[H_2] =\dfrac{3.21 \times 10^{-2}}{3.5}$

$[H_2] = 9.17 \times 10^{-3}$

∴

$Q_c= \dfrac{(1.834 \times 10^{-4})^2}{(0.0711)\times (9.17\times 10^{-3})^3} \\ \\ Q_c = 0.6135$

However; given that:

$K_c = 1.2$

By relating $Q_c \ \ and \ \ K_c$ , we will realize that $Q_c \ \ < \ \ K_c$

The reaction is said that it is not at equilibrium and for it to be at equilibrium, then the reaction needs to proceed in the forward direction.

7 0

3 years ago

Which shows an isomer of the molecule below?

blsea [12.9K]

Answer:

Explanation:

Hello,

In this case, the isomer of an organic compound is another organic compound having the same molecular formula but different structural formula, thus, the given compound's molecular formula is C₅H₈ since it is an alkyne due to the triple bond. Next, we analyze each option:

A. C₅H₁₂

B. C₅H₁₀

C. C₅H₁₀

D. C₅H₈

For that reason answer is D. based on the molecular formula as well as due to the presence of the triple bond unsaturation (alkyne as well).

Best regards.

3 0

3 years ago