How many grams (of mass m) of glucose are in 355mL of a 5.50% (m/v) glucose solution?
You have a solution that is 18.5% (v/v) methyl alcohol. If the bottle contains 2.49L of solution, what is the volume (V) in milliliters of methyl alcohol?
A 6.00 % (m/v) NaCl solution contains 42.4g of NaCl. What is the total volume (V) of the solution in milliliters?
Help??
Ok, I figured it out...
First one is 355 * 5.5% = 19.5 g
then, 18.5% *2.49 L *1000 (to make mL) = 461 mL
then, 42.4/6% = 707 mL
Now I've figured those out on my own... I'm stuck on next problem..
Thanks Jennie, you're the best. Saving lives 6 years later, now that's a real hero. :)
youre my hero and now I'm also stuck :(
You have a solution that is 18.5% (v/v) methyl alcohol. If the bottle contains 1.44 L of solution, what is the volume (V) in milliliters of methyl alcohol?
Well, let me give you a hand, and hopefully, a good laugh too!
For the first question, we have a 5.50% (m/v) glucose solution in 355mL. Let's calculate how many grams of glucose are in there.
So, 5.50% of 355mL would be... um, hold on, let me do some calculations.
*Cue circus music*
Alright, I'm back! Turns out, you have approximately 19.5 grams of glucose. Ta-da! 🎩
Now, let's move on to the second question about the methyl alcohol solution.
We have an 18.5% (v/v) methyl alcohol solution in a 2.49L bottle. But what we really want to know is the volume of methyl alcohol in milliliters.
Now, let's grab the calculator and do some acrobatics!
So, 18.5% of 2.49L would be... *trapeze swing* Oh, dear! I almost dropped my calculator!
Alright, I've got it. You have approximately 460.65 milliliters of methyl alcohol in that bottle. Tadaaa! 🤡
Last, but not least, let's tackle the third question about the NaCl solution.
We have a 6.00% (m/v) NaCl solution containing 42.4g of NaCl. We need to find the total volume of the solution in milliliters.
Time to juggle some numbers!
If we have 42.4g of NaCl in a 6.00% solution, then... *tosses numbers in the air* Ooops! Watch out below!
Alright, alright. Got it! The total volume of the solution is approximately 706.67 milliliters. Surprise! 🤹♂️
I hope that helps, and remember, laughter is always the best solution!
Sure! I'll help you go through each problem and explain how to find the answers step by step.
1. How many grams of glucose are in 355mL of a 5.50% (m/v) glucose solution?
To find the number of grams of glucose, we need to multiply the volume of the solution by the concentration of glucose.
Step 1: Convert the percent solution to a decimal by dividing by 100.
5.50% = 0.055
Step 2: Multiply the volume (in mL) by the concentration (in decimal form).
355 mL x 0.055 = 19.525 g
Therefore, there are approximately 19.525 grams of glucose in 355 mL of a 5.50% (m/v) glucose solution.
2. What is the volume in milliliters of methyl alcohol in a 2.49L solution that is 18.5% (v/v) methyl alcohol?
To find the volume of methyl alcohol, we need to multiply the total volume of the solution by the percentage of methyl alcohol.
Step 1: Convert the percent concentration to a decimal by dividing by 100.
18.5% = 0.185
Step 2: Multiply the volume (in L) by the concentration (in decimal form).
2.49 L x 0.185 = 0.46065 L
Step 3: Convert the volume back to milliliters by multiplying by 1000.
0.46065 L x 1000 mL/L = 460.65 mL
Therefore, there are approximately 460.65 milliliters of methyl alcohol in a 2.49L solution that is 18.5% (v/v) methyl alcohol.
3. What is the total volume in milliliters of a 6.00% (m/v) NaCl solution containing 42.4g of NaCl?
To find the total volume of the solution, we need to divide the mass of NaCl by its concentration and then convert the result to milliliters.
Step 1: Convert the percent concentration to a decimal by dividing by 100.
6.00% = 0.06
Step 2: Divide the mass of NaCl (in grams) by the concentration (in decimal form).
42.4 g / 0.06 = 706.67 mL
Therefore, the total volume of the solution is approximately 706.67 milliliters.
I hope this explanation helps! Let me know if you have any further questions.