Hey there!
To calculate the percent by mass of the Ca(NO₃)₂ we need to find the total mass first by adding.
896.92 + 22.63 = 919.55
In total, the solution is 919.55 grams.
To find the percent of Ca(NO₃)₂ in the solution, divide the mass of Ca(NO₃)₂ by the total mass and multiply by 100.
22.63 ÷ 919.55 = 0.0246
0.0246 x 100 = 2.46
Ca(NO₃)₂ makes up 2.46% of the solution.
Hope this helps!
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Answer:
16875 J
Explanation:
KINETIC ENERGY EQUATION = <em> </em><em>1/2 m v^2</em>
= 1/2 times mass times velocity of metres per second^2 (speed)
= 1/2 times 150 times by 15^2
= 16875 J (joules)
Answer:
unknown pressure has its volume increased to 34 liters and its temperature ... atm, what will be the pressure of the gas if I raise the temperature to 94.
