Mathematics, 09.11.2020 17:30 myg21
A chemical company makes up batches of copper sulfate solution by adding 250 kg of copper sulfate powder to 1000 liters of water. A laboratory chemist wants to make a solution of identical concentration, but only needs 350 mL (0.35 liters) of solution.
How much copper sulfate powder should the chemist add to the water? Enter your answer in the box below in decimal format.
The mass of copper sulfate that the chemist should add is
kg.
help me please
Answers: 3
Mathematics, 21.06.2019 16:30
The average human heart beats 1.15 \cdot 10^51.15β
10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65β
10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.
Answers: 1
Mathematics, 21.06.2019 19:30
Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to β(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from β6. the value of y must be positive since the variable is inside absolute value signs.
Answers: 1
Mathematics, 21.06.2019 21:20
Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 β12 74 β74
Answers: 2
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