(a) how much H2S is formed‚ (b) how much excess reactant is left. 1. Assign the oxidation number to each atom in: a. Ga2O3 b. H3PO4 c. Ca(MnO4)2 2. 100.00 g of sodium chloride is dissolved in enough water to prepare 10.0 L of solution. What is the molarity of the solution? 3. Calculate the empirical formula for the compound that contains 40.92% C‚ 4.58% H‚ and 54.50% O. 4. Write the (a) complete-formula equation‚ (b) ionic equation‚ and (c) net ionic equation for this neutralization
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wound healing and recovery especially in severely wounded patients. One of the approaches for treating wounds is the use of biocompatible composites incorporated with antibacterial agent to improve wound healing and diminish the wound infection risk 2. Ion-exchange zeolite has gained attention due to its renewable nature‚ good biocompatibility and excellent
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absorbs 2. Cuvette – a small tube closed at one end‚ which serves as a sample holder for Spectroscopic experiments 3. Complexes – ions containing metals bonded to its molecules or other ions; reactions of these are called Complexation 4. Spectrum – electromagnetic radiation either emitted or absorbed by substances 5. Ligand – the species that binds to the metal ions III. Introduction When light interacts with matter‚ the structures and properties of atoms and molecules are determined
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1) What is the role of calcium ions during contraction of a skeletal muscle? Calcium is an important element for live. Calcium is found in the bones of animals and humans. In muscle contraction is produce as a result of Calcium ions ‚ Ca2+‚ It comes from rapid release from the cisternae of the sarcoplasmic reticulum which cause a chemical reaction between ATP and the myofilaments. Another important function of Calcium ions occurs during the state of resting muscle. During the state of resting
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Carlie Haeffner Qualitative Analysis March 20‚ 2015 The purpose of this lab is to identify unknown ions in a solution by using a type of chemical reaction called precipitate reactions. The key to finding which ions are present in a solution is to form a precipitate which makes the ions “come out” in a reaction (McNeil‚ 2013-2014). Water is used in these experiments to act as a solvent. Since water is a polar molecule‚ the slightly positive and negative charges will sometimes pull apart molecules
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Determination of Calcium ions in milk using titration. Background Calcium is a mineral which is essential to the human body. In fact 1.5% of the human body is made up of calcium‚ and not just the obvious uses such as bone and teeth formation but it is also a vital factor in many enzyme reactions‚ for example blood clotting. It also partakes in the regulation of the hearts rhythm. Lack of the crucial mineral can result in the build up of cadmium and lead‚ both of which are toxic. along
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EXPERIMENT 2: COMMON-ION EFFECT AND BUFFERS MARVILE REA R. FERRER1 1DEPARTMENT OF MINING‚ METALLURGICAL & MATERIALS ENGINEERING‚ COLLEGE OF ENGINEERING UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: DECEMBER 13‚ 2012 DATE PERFORMED: DECEMBER 07‚ 2012 ______________________________________________________________________________________________________________ INTRODUCTION Monitoring the pH range of a laboratory reaction or a process is very
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(vi) Ion-induced dipole interactions [20(b)] In these interactions ion’s field induces a dipole moment in a molecule. If μ is the induced moment in a field E‚ ‘α’ is the polarizability (assumed to be constant)‚ then (26) (27) where FZ is the instantaneous force on the induced dipole (R >> δ) and the interaction energy at a given R‚ is (28) As the induced dipole is parallel to the field
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LAB 3.Ø.Ø: do ions combine in definite ratios PURPOSE The purpose of this investigation is to determine whether ions combine in definite ratios or not. To observe‚ and create a table of the different ions. QUESTION If copper (II) sulfate when mixed with sodium carbonate at different quantities combine to form ions in definite ratios. HYPOTHESIS / PREDICTION I believe that the ions will combine in definite ratios due to the fact that the valance electrons will not be changing throughout any
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. ~.. r .. .‚III/!I.. ‚• •f t . ‚.‚;;;‚UUft Y f__ _ P_RO_O_O_c_1 PDS: 1-16 _DA_T_A_S_f5l~_T GU_IT_erl_t: SUperseI &10 l-10 Neme‚‚ . _ nrkc Gnphlte Anoryhout Gnphite Ctey Siticr Tdc Ilcrtrin ’ . -‚ _ OSHApcl CAS# . ‚. N.iosL 77t242-S 2.5 2.5 778?‚42-5 2‚5 2.5 [5’15" l?32-58-57 t4g0g60-? 0.051o lI 14t0?-96-6 2.0 2.0 9004-53-9 "Retpirablc fraction - .... ACSF t{v 2.5 2..5 l0 0.I 2.0 _ _‚ _ in mluesacprcsscd mg/m3 TotalDust I Respirablc dust IEYSfCIi
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