nauticatyson9
09.07.2019 •
Biology
For column a # 4. veins # 5. capillaries column b d) transport of materials in living things e) carry blood back to the heart answer by the questions .
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Ответ:
Ответ:
58.8 grams.
Explanation:
First we calculate how many HNO₃ grams are there in 400.0 g of a 10.0% solution:
Out of 100 g of a 10.0% solution, 10 g will be of HNO₃.400.0 g * 10.0/100 = 40 g HNO₃Then we calculate the mass of a 68.0% solution that would contain 40 grams of HNO₃:
40 g HNO₃ * 100 g Solution/68 g HNO₃ = 58.8 g