A solution is made by mixing 569 mL of water and 238 mL ethanol. What is the concentration of ethanol in units of volume/volume percent?

Answers

Answer 1

The concentration of ethanol in units of volume/volume percent is 29.49%.

Volume/volume concentration

To calculate the concentration of ethanol in units of volume/volume percent, we need to determine the volume of ethanol relative to the total volume of the solution.

Total volume of the solution = volume of water + volume of ethanol

Total volume = 569 mL + 238 mL

Total volume = 807 mL

To express the concentration as volume/volume percent, we can calculate the ratio of the volume of ethanol to the total volume of the solution and multiply by 100 to obtain a percentage.

Concentration of ethanol = (volume of ethanol / total volume of solution) x 100

Concentration of ethanol = (238 mL / 807 mL) x 100

Concentration of ethanol = 0.2949 x 100

Concentration of ethanol = 29.49%

Therefore, the concentration of ethanol in the solution is approximately 29.49%.

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Related Questions


I need help with budgeting someone who works as a Master Business Administrator but it’s entrepreneurship I need help with the Gross annual salary then I have to subtract the federal tax by 19%
Basically multiply gross annual salary by .19 then subtract the amount

Subtract the tax of 11%
Subtract THE fICA tax of 8%
Multiple the gross jayla salary by .08 then subtract the amount
Then I have to find the NEt Annual Salary
then it says mutual the monthly net income then divide the net annual salary by 12

Then I have to find the monthly expense of being a MBA (entrepreneur)
Like mortgage for mortgage I have to go to Zillow and ask for my “debts” this would be any credit card debt , student loans, car payments etc then I have to find utilities, cable , internet , cell phone , car pay , student loans , groceries , car gasoline , health insurance, auto insurance,home insurance, entertainment, hair cuts /nails /beauty , Gym membership , clothes , gifts , vacation fund I have to multiply my month net income by 0.1 to find all these it all depends on how much I make and last but not least I have to find the projected monthly expense

IF YOU can help with me all of these I will sure to mark you BRAINLIEST

Answers

I can give you a general approach to budgeting based on the guidelines you provided.

First, let's assume that the gross annual salary of the MBA entrepreneur is $100,000.

Federal Tax:

19% of $100,000 = $19,000

Net Salary:

$100,000 - $19,000 = $81,000

State Tax:

Assuming the state tax rate is 11%:

11% of $81,000 = $8,910

Net Salary:

$81,000 - $8,910 = $72,090

FICA Tax:

Assuming the FICA tax rate is 8%:

8% of $81,000 = $6,480

Net Salary:

$81,000 - $6,480 = $74,520

Monthly Net Income:

$74,520 divided by 12 = $6,210

Monthly Expenses:

Assuming a debt of $1,000 per month (credit card/student loans/car payments),

Utilities: $150

Cable and Internet: $100

Cell Phone: $50

Car Payment: $400

Groceries: $400

Car Gasoline: $150

Health Insurance: $400

Auto Insurance: $150

Home Insurance: $100

Entertainment: $200

Haircuts/Nails/Beauty: $100

Gym Membership: $50

Clothes: $100

Gifts: $100

Vacation Fund: $200

Total Monthly Expenses:

$2,900

Projected Monthly Expense:

10% of $6,210 = $621

Note that this is just an example, and your budget may differ depending on your specific circumstances and location. It's essential to track your actual expenses carefully to make sure you're sticking to your budget and adjusting it as needed.

Answer:

I apologize if this is not what you wanted! If you want a different answer or would like me to change it please let me know :)

Explanation:

For housing, I should be spending no more than 30% of my monthly net income. This includes rent, mortgage payments, and utilities. For transportation, I should be spending no more than 15% of my monthly net income. This includes car payments, gas, and insurance. For food, I should be spending no more than 10% of my monthly net income. This includes groceries and eating out. For savings, I should be spending no more than 10% of my monthly net income. This includes retirement savings, emergency funds, and other investments. For debt payments, I should be spending no more than 10% of my monthly net income. This includes student loans, credit cards, and other debts. For entertainment, I should be spending no more than 5% of my monthly net income. This includes movies, concerts, and other leisure activities.

In addition to these categories, I may also need to budget for other expenses. This could include medical bills, clothing, and other miscellaneous expenses. It is important to remember that these percentages are just guidelines and may need to be adjusted depending on my individual situation.

Scenario : I would like to save for a new cell phone which variable expense can I cut back ? How much should I save for a month on the phone?

If I would like to save for a new cell phone, I can cut back on my variable expenses. I can reduce my spending on entertainment, clothing, and miscellaneous expenses. I should aim to save at least 5% of my net annual salary for a new cell phone. This would be approximately $1,000 per year, or $83.33 per month.

id k what to do for the other two, but i hope this helps you! :))))))

which stament is true about endothermic and exothermic reactions? 1. Energy is absorbed 2. energy is released in an endothermic reaction. 3. the products have more potential energy than the reactants in an exothermic reaction. 4. the products have more potential energy than the reactant in an endothermic reaction.

Answers

Answer:

Overall, energy is released in exothermic and absorbed in endothermic reactions. Therefore, "a" is the correct statement. The other statements are all incorrect.

Explanation:

u suck

CHEM FINAL TOMORROW, NEED IMMEDIATE HELP!!! There are a few topics I don't understand, if someone could give a short explanation of how to do these kinds of problems, it would help so much. I'll be posting a few more of these on my page, so feel free to check those out if you would like. Thanks!

Answers

The mass of [tex]O_2[/tex] needed to produce 8.65 x [tex]10^{23[/tex] atoms of silver is 22.96 grams.

Stoichiometric calculation

In the given balanced equation, it is stated that 2 moles of [tex]Ag_2O[/tex] produce 4 moles of Ag and 1 mole of [tex]O_2[/tex].

First, let's calculate the number of moles of Ag:

8.65 x [tex]10^{23[/tex] atoms of Ag / (6.022 x [tex]10^{23[/tex] atoms/mol) = 1.435 moles of Ag

Since 2 moles of  [tex]Ag_2O[/tex] produce 1 mole of  [tex]O_2[/tex], the number of moles of  [tex]O_2[/tex] needed is half of the moles of  [tex]Ag_2O[/tex].

Number of moles of  [tex]O_2[/tex]= 1.435 moles of  [tex]Ag_2O[/tex] / 2 = 0.7175 moles

Now, we'll use the molar mass of  [tex]O_2[/tex] to find the mass:

Molar mass = 32.00 g/mol

Mass of  [tex]O_2[/tex] = number of moles × molar mass

                   = 0.7175 moles × 32.00 g/mol = 22.96 g

Therefore, the mass of  [tex]O_2[/tex] needed to produce 8.65 x [tex]10^{23[/tex] atoms of silver is 22.96 grams.

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C2N2H8 empirical formula

Answers

Answer:

[tex]\huge\boxed{\sf CNH_4}[/tex]

Explanation:

Empirical formula:The simplest whole number ratio of atoms in a compound is known as empirical formula.Solution:

Given compound us,

C₂N₂H₈

Ratio:

= 2 : 2 : 8

Divide by 2

= 2 ÷ 2 : 2 ÷ 2 : 8 ÷ 2

= 1 : 1 : 4

So, we can write the formula as:

= CNH₄

[tex]\rule[225]{225}{2}[/tex]

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