1. Determine the percentage of hydrogen peroxide in the solution sample.  2. naturally occurring manganese consists of only the Mn55 isotope. determine the moles of the manganese sulphate in the product solution, then calculate the totally number of neutrons present in all the manganese ions in the final solution.

24. What is the mass of 5.00 moles of water, H₂O?

Consider these compounds: A. Ag2SO3 B. MnS C. Mg(OH)2 D. FeCO3 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that cobalt(II) carbonate is more soluble than cobalt(II) carbonate is less soluble than It is not possible to determine whether cobalt(II) carbonate is more or less soluble than comparing Ksp values. I and by simply

1. How many GRAMS of nitrogen are present in 3.45 moles of nitrogen monoxide ? | 2. How many MOLES of oxygen are present in 4.91 grams of nitrogen monoxide ? grams. moles.

1. Determine mass (in mg) of carbon that contains 0.050 moles.

I need help calculating some of the following values please. PLEASE show your work!! reaction equation: MnO4− + 5 Fe2+ + 8 H+ → Mn2+ + 5 Fe3+ + 4 H2O

RIAS X * OWLV2 | On X 2 Molecular P Pearson SI X metals peri x A My Home takeCovalentActivity.do?locator%=assignment-take (Review Topics) (References] Use the References to access Important values if needed for this question. a. How many moles of sulfur hexafluoride are present in 2.40 x 1022 molecules of this compound? moles b. How many molecules of sulfur hexafluoride are present in 3.52 moles of this compound? molecules Submit Answer Retry Entire Group 9 more group attempts remaining Show Hint Previous Next 回ヨ *

3) Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium chlorate.a. What mass of oxygen should theoretically be released upon heating? b. What mass of potassium chloride residue should theoretically be left over after heating?

A east.cengagenow.com ral Chemistry I E OWLV2 | Online teaching and learning resource from Cengage Learning G According to the following reaction, how many grams of barium ch [References) Use the References to access impertant values if needed for this question. A 3.607 g mixture of SRCO, and Sro is heated. The SrCO, decomposes to SrO and CO,. What was the mass percentage of SrCO, in the mixture if the mass after heating is 3.202 g? 88.8 % 42.4 % O 1.73E-3 % O 0.377 % 37.7 % Submit Answer Try Another Version 5 item attempts remaining (Previous Next Cengage Learning Cengare Technlcal Support