I need help on my chem lab... I need to give you background info so you know how to help me..
Data Sheet:
Specific gravity of distilled water
Temp of distilled water = 20 C
Specific gravity: 1.0000 or 1.000 (according to hydrometer used)
sugar solution 1 : mass 18.01 g volume 500 ml specific gravity 1.014
sugar solution 2 36.01g 500 ml 1.027 SG
sugar solution 3: 52.98 g 500 ml 1.039 sg
specific gravity of regular coke: 1.050
of gatorade: 1.025
1. Calculate the density of distilled water used.
Answer I got: specific gravity is 1.000
density is SG*1000kg/m^3 = 1*1000 kg/m^3 or just 1g/cm^3
2. calculate the concentration in % of standard sugar solutions
Answer I got:
sugar solution 1 (18.01/500)=.036*100=3.6%
sugar solution 2
(36.01/500) = 0.072*100= 7.2%
sugar solution 3
(52.98/500) = 0.106*100= 10.6%
**** Help here***
Using information (sugar and serving size) on nutrition label of each drink, determine the concentration of sugar in each drink. Show calculations?
Coke 20 oz = 65g sugar per 591 ml
So, would I first find the 1000ml?? do I calculate 591/1000 * 65g = 38.4%?? or is it just 65g/591 = 11%?? confused how to work this
***** Help with how to work this****
Calculate the absolute errors of measured sugar concentrations by using the values determined in the previous problem as reference values.....
How do I calculate this ??? Help!!!
To determine the concentration of sugar in each drink, you will need to use the information from the nutrition label and the serving size of each drink. Here's how to calculate it:
1. Coke:
- The label states that there are 65g of sugar per 591ml.
- Convert the serving size to 1000ml: (591/1000) * 65g = 38.44g.
- Calculate the concentration: (38.44g/1000ml) * 100 = 3.844%.
2. Gatorade:
- The label states that there are 1.025 specific gravity units, but we need the sugar concentration.
- Since the specific gravity only provides relative density, you cannot directly convert it to sugar concentration without additional information. Therefore, you cannot calculate the sugar concentration for Gatorade based on the given data.
Next, let's move on to calculating the absolute errors of measured sugar concentrations using the values determined in the previous problem as reference values:
1. Sugar Solution 1:
- The measured concentration was 3.6%.
- Calculate the absolute error: |3.6 - 3.844| = 0.244.
2. Sugar Solution 2:
- The measured concentration was 7.2%.
- Calculate the absolute error: |7.2 - [value calculated in previous problem for sugar solution 2]|.
3. Sugar Solution 3:
- The measured concentration was 10.6%.
- Calculate the absolute error: |10.6 - [value calculated in previous problem for sugar solution 3]|.
Remember to substitute the values you obtained for the sugar solutions in the previous problem into the calculation above to find the absolute errors for each concentration.
To determine the concentration of sugar in each drink, you can use the information provided on the nutrition label. Let's calculate the concentration for each drink:
1. Coke:
The nutrition label states that a 20 oz (591 ml) serving of Coke contains 65g of sugar.
To calculate the concentration, you need to find the sugar content per 1000 ml. You can use the following calculation:
(65g / 591 ml) * 1000 ml = 110.10 g
Therefore, the concentration of sugar in Coke is approximately 110.10 g per 1000 ml.
2. Gatorade:
The specific gravity of Gatorade is given as 1.025.
To determine the concentration, you don't have to use the nutrition label because the specific gravity already gives you a measure of the concentration of the solution. Therefore, the concentration of sugar in Gatorade is approximately 1.025 times the concentration of water, which is approximately 1.025 * 10.6% = 10.88%.
Now, let's move on to calculating the absolute errors of the measured sugar concentrations.
To calculate the absolute error, you can subtract the reference value (the values you determined previously) from the measured value. In this case, the measured values are the concentrations you calculated for each standard sugar solution.
For example, let's calculate the absolute error for Sugar Solution 1:
Measured concentration: 3.6%
Reference concentration: 3.6%
Absolute error = Measured concentration - Reference concentration
= 3.6% - 3.6%
= 0%
Similarly, you can calculate the absolute errors for Sugar Solution 2 and Sugar Solution 3 by comparing the measured concentrations to the reference concentrations you calculated earlier.
I hope this helps!