Concept explainers
(a)
Interpretation:
The formula and charge of an iron complex with six water ligands needs to be determined.
Concept introduction:
Chemical proportions of atoms in a particular chemical compound or molecule are represented by using a chemical formula that makes use of chemical symbols, numbers, parentheses, brackets, commas, plus and minus signs.
(b)
Interpretation:
The formula and charge of Nickel complex with two ethylene diamine and two bromide ligands needs to be determined.
Concept introduction:
The chemical formula indicates the number of atoms of each element that constitutes a compound. It is usually represented by symbols of atoms of any element present in the compound. The number of atoms is indicated through subscripts. In symbols, there is the use of plus, minus, brackets, parentheses as well.
(c)
Interpretation:
The formula and charge of Platinum complex with two chloride and two ammonia ligands needs to be determined.
Concept introduction:
Molecular formula or chemical formula is a way of representing the compound of any elements that are bonded using chemical symbols. The number of atoms is represented as subscripts.
The chemical elements are represented as symbols and could be indicated in brackets with plus or minus symbols.
The compound is indicated as a formula using an abbreviation.
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Chapter 21 Solutions
LCPO CHEMISTRY W/MODIFIED MASTERING
- Conservation of mass was discussed in the background. Describe how conservation of mass (actual, not theoretical) could be checked in the experiment performed.arrow_forwardWhat impact would adding twice as much Na2CO3 than required for stoichiometric quantities have on the quantity of product produced? Initial results attachedarrow_forwardGiven that a theoretical yield for isolating Calcium Carbonate in this experiment would be 100%. From that information and based on the results you obtained in this experiment, describe your success in the recovery of calcium carbonate and suggest two possible sources of error that would have caused you to not obtain 100% yield. Results are attached form experimentarrow_forward
- 5) Calculate the flux of oxygen between the ocean and the atmosphere(2 pts), given that: (from Box 5.1, pg. 88 of your text): Temp = 18°C Salinity = 35 ppt Density = 1025 kg/m3 Oxygen concentration measured in bulk water = 263.84 mmol/m3 Wind speed = 7.4 m/s Oxygen is observed to be about 10% initially supersaturated What is flux if the temperature is 10°C ? (2 pts) (Hint: use the same density in your calculations). Why do your calculated values make sense (or not) based on what you know about the relationship between gas solubility and temperature (1 pt)?arrow_forwardFind a molecular formula for these unknownsarrow_forward(ME EX2) Prblms 8-11 Can you please explain problems 8 -11 to me in detail, step by step? Thank you so much! If needed color code them for me.arrow_forward
- Don't used hand raitingarrow_forwardThe following 'H NMR spectrum was taken with a 750 MHz spectrometer: 1.0 0.5 0.0 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 ' 2.0 1.0 0.0 (ppm) What is the difference Av in the frequency of RF ac Δν ac radiation absorbed by the a and c protons? (Note: it's not equal to the difference in chemical shifts.) Round your answer to 2 significant digits, and be sure it has an appropriate unit symbol. = O O a will shift left, c will shift right. O a will shift right, c will shift left. a and c will both shift left, with more space between them. Suppose a new spectrum is taken with a 500 MHz spectrometer. What will be true about this new spectrum? O a and c will both shift left, with less space between them. O a and c will both shift right, with more space between them. O a and c will both shift right, with less space between them. Which protons have the largest energy gap between spin up and spin down states? O None of the above. ○ a Ob Explanation Check C Ar B 2025 McGraw Hill LLC. All Rights Reserved.…arrow_forwardWhat mass of Na2CO3 must you add to 125g of water to prepare 0.200 m Na2CO3? Calculate mole fraction of Na2CO3, mass percent, and molarity of the resulting solution. MM (g/mol): Na2CO3 105.99; water 18.02. Final solution density is 1.04 g/mL.arrow_forward
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