Since we want a 5% glucose solution, the mass (grams of glucose) divided by the volume (mL of the solution) should be 5% (0.05).
From the given 400mL, the equation would then be:
x g/ 400 = 0.05 g/mL
x g = (400mL)(0.05 g/mL)
x g = (400mL)(5g / 100mL)
x = 20 g
When doing problems like this, I always find it helpful to keep track of your units. They'll help guide you on what is supposed to be divided or multiplied.
Explanation:
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jermaineklei311634
Copy and paste lng malakas. 800ml po un hindi 400ml. Points lng kasi ang habol mo, nakakahiya ka
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Answer: You would need 20g of glucose.
Since we want a 5% glucose solution, the mass (grams of glucose) divided by the volume (mL of the solution) should be 5% (0.05).
From the given 400mL, the equation would then be:
x g/ 400 = 0.05 g/mL
x g = (400mL)(0.05 g/mL)
x g = (400mL)(5g / 100mL)
x = 20 g
When doing problems like this, I always find it helpful to keep track of your units. They'll help guide you on what is supposed to be divided or multiplied.
Explanation: