Mathematics, 04.04.2021 01:00 oddsome74
Adam added 30.0 grams of Sodium Hydroxide to 750.0mL of water to create a stock solution to be used for a number of purposes. 250.0mL of the stock solution was removed to be used for a demonstration but Mr. Offenbacher decided the initial concentration was too strong. He decided to add another 100.0mL of water to the removed solution. What was the concentration of the initial stock solution and what is the concentration of the final concentration to be used for the demo? Show all of your conversion factors for full marks.
Answers: 3
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The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?
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If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
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Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.
Answers: 1
Adam added 30.0 grams of Sodium Hydroxide to 750.0mL of water to create a stock solution to be used...
Mathematics, 14.12.2020 23:30
Mathematics, 14.12.2020 23:30
Mathematics, 14.12.2020 23:30