OC userin Chemistry·16 May 201864. Element 107, now named bohrium, was synthesized by German researchers by colliding bismuth-209 with chromium-54 to form a bohrium isotope and one neutron. Write the nuclear equation to represent this reaction.
OC userin Chemistry·16 May 201833. Write a formula for the ionic compound that forms between each pair of elements. a. calcium and oxygen b. zinc and sulfur c. rubidium and bromine d. aluminum and oxygen
OC userin Chemistry·16 May 20189. Explain the difference between the rate law for a reaction and the integrated rate law for a reaction. What relationship does each kind of rate law express?
OC userin Chemistry·18 May 2018A woman weighing 68 kg drinks the equivalent of 60 g of ethanol. Her peak plasma concentration was found to be 1.91 g/L. 1. What is the value of VD for ethanol in this example? 2. Assume that the womanâs weight is 63% water. How does the weight of water in her body and the VD value compare? What does this mean in terms of the distribution of ethanol?
OC userin Chemistry·15 May 2018Q4. For the reaction 2 A + B - C, the initial rate is measured at several different reactant concentrations. From the resulting tabulated data, determine the rate law for the reaction. [A] (M) Initial Rate (M/s) 0.05 0.035 [B] (M) 0.05 0.05 0.10 0.10 0.070 0.20 0.56 a) Rate = k[A][B] c) Rate = k[A] [B] b) Rate = k[A] [B] d) Rate = k[A] [B]
OC userin Chemistry·16 May 201856. Refer to the nomenclature flowchart (Figure 3.11) to name each compound a. HNO2(aq) b. B2Cl2c. BaCl2d. CrClz
OC userin Chemistry·17 May 201892. Consider the compounds with the generic formulas listed and their corresponding molar solubilities in pure water. Which compound has the smallest value of Ksp? a. AX; molar solubility = 1.35 x 10-4 M b. AX2; molar solubility = 2.25 x 10-4 M c. A2X; molar solubility = 1.75 X 10-4M
OC userin Chemistry·16 May 2018Contains Verified Answer41. Which statements are consistent with Rutherford's nuclear theory as it was originally stated? Why? a. The volume of an atom is mostly empty space. b. The nucleus of an atom is small compared to the size of the atom. c. Neutral lithium atoms contain more neutrons than protons. d. Neutral lithium atoms contain more protons than electrons.
OC userin Chemistry·15 May 201894. A student is studying the photodissociation (dissociation with light) of 12 — 21. When a sample of I, is irradiated with a power of 255 mW at 590 nm for 35 seconds, 0.0256 mmol of I forms. Assuming complete absorption of the incident radiation, what is the quantum yield, 4, of the reaction? (See Problem 93 for definition of quantum yield.)
OC userin Chemistry·14 May 2018What is the difference between sweet cream butter, cultured butter, clarified butter, and margarine? Describe how ice crystals, concentrated cream, and air all contribute to the final structure of ice cream.
erinsheep778Lv1in Chemistry·17 Feb 2021The process in which proteins are made from RNA is called A. Complementation B. replication C. transcription D. translation
OC userin Chemistry·14 May 20187. A chemist added 10.0 g of an unknown alkaline earth metal to 100 mL of 6 M sulfuric acid. After a vigorous reaction with evolution of a gas, only a clear, colourless solution remained. Next, she removed water and excess sulfuric acid from the solution by vacuum to leave a white solid. After recrystallization, she obtained 13.7 g of product, which represented a 65% yield. Chemical analysis of the white solid showed that it did not contain hydrogen. The white solid was found to be soluble in water and did not react with oxygen. (a) Identify the unknown metal with a chemical symbol. You must show your work for credit
OC userin Chemistry·16 May 2018Write a brief essay explaining how aerobic and anaerobic decomposition, BOD (biological oxygen demand), dissolved oxygen concentration, and eutropication are related to each other. Please don't copy the lesson text and concisely explain in 200-300 words. Your explanations should include what each term means.
OC userin Chemistry·15 May 2018so i have an experiment where i need to figure out the limiting reagent using 1.6 ml of a solution containing 58 mg acetone and ethanol. and 0.212 g of benzaldehyde. now i figured out the second part, but how do i calculate the acetone and ethanol mols? and which will be my limiting reagent?
OC userin Chemistry·13 May 201817) lonization energy (IE) increases from left to right on the periodic table and is a measure of the energy required to abstract an electron. Yet the first IE for phosphorus is larger (10.5 volts) than the first IE of sulfur (10.4 volts). Explain this anomaly.