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3 years ago

How many moles are in 60.05 g of carbon

Chemistry

1 answer:

Brrunno [24]3 years ago

5 0

Answer:

moles =60.05/12

moles=5.0041

moles=5(approx)

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The [OH-] of a solution is 7.89 10^-12 M. What is the pH of the solution? it acidic or basic? *

kompoz [17]

Answer: pH = 2,897 , basic $[H+][OH-] = 10^{-14} ==> [H+] = \frac{10^{-14}}{7,89*10^{-12} } =\frac{1}{789} \\pH= -lg([H+]) = 2,897 \\pH basic$

Explanation:

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3 years ago

Using your old and new reaction roadmaps as a guide, show how to convert ethane into 1- butanol. You must use ethane as the sour

Naddik [55]

Answer:

Ethane can be converted into 1- butanol in 4 different steps and reactions.

Explanation:

Step 1 : Ethane follows Markovnikov's rule and reacts with a protic acid called Hydrogen chloride to form Chloroethane.

Step 2: Chloroethane undergoes Wurtz reaction where it reacts with sodium metal in the presence of dry ether to form an higher alkane called butane.

Step 3: Butane undergoes chlorination where it reacts with an halogen called chlorine to form 1-chlorobutane.

Step 4: 1-chlorobutane reacts strong aqueous Potassium hydroxide (KOH) to form 1-butanol.

Attached to this answer is the handwritten conversion of Ethane to 1-butanol showing all the reagents and molecules synthesized along the way.

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3 years ago

Which carbohydrate strengthens plant cells?

Finger [1]

Answer: Its C

Explanation:

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3 years ago

What are the reactants and products when butane combusts with excess oxygen?

larisa86 [58]

C3H8 + O2 --> CO2(g) + H2O(g) + energy(heat)

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3 years ago

A scientist has a 98,3 g sample of silicon, How many silicon atoms are in the sample?

Leno4ka [110]

The number of silicon atoms that are in this sample is: B. $2.11 \times 10^{23} \;atoms$

Given the following data:

Mass of silicon = 98.3 grams

Scientific data:

Avogadro's number = $6.02 \times 10^{23}$

Molar mass of silicon = 28.09 g/mol.

To determine the number of silicon atoms that are in this sample:

First of all, we would determine the number of moles contained in 98.3 grams of silicon.

$Number\;of\;moles = \frac{mass}{molar\;mass}\\\\Number\;of\;moles = \frac{98.3}{28.09}$

Number of moles = 3.4995 moles

By stoichiometry:

1 mole of silicon = $6.02 \times 10^{23}$ atoms

3.4995 moles of silicon = X atoms

Cross-multiplying, we have:

$X = 6.02 \times 10^{23} \times 3.4995\\\\X= 2.11 \times 10^{23} \;atoms$

Read more on atoms here: brainly.com/question/10614569

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2 years ago