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A sample of a compound contains 28.6% sodium, 46.8% sulfur, and 24.6% oxygen. Determine the empirical formula of this inorganic compound.

asked Jan 22 in Inorganic Chemistry by ErmelindaSey (1.8k points)

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A chemistry student needs to determine the specific heat capacity of a metal block. The student has the following information: the mass of the block is 75 g and its initial temperature is 25°C. The student heats the block to 100°C, and calculates that it absorbed 1500 J of heat during this process. What is the specific heat capacity of the metal block?

asked Jan 22 in ThermoChemistry by JonasQuj2910 (2.1k points)

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What is the name of the theory that suggests that our behaviour can be understood by studying how our brain perceives and processes information?

asked Jan 20 in Psychology by YRPAbe659621 (2.3k points)

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What is the major product formed in the elimination reaction of 2-methylcyclohexanol with concentrated sulfuric acid at high temperature?

asked Jan 21 in Organic Chemistry by ElisaWestgar (1.8k points)

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How many constitutional isomers can be obtained for a given molecular formula C5H12?

asked Jan 21 in Organic Chemistry by RafaelBarrow (1.7k points)

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When does the lens of the eye change shape to focus on near objects?

asked Jan 20 in Psychology by VioletteM27 (2.1k points)

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Here's a question:What is the molecular formula and structural formula of the fourth member of the alkane series, and how many possible isomers of this compound exist?

asked Jan 21 in Organic Chemistry by XHQMikel9006 (2.0k points)

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What is the oxidation state of chlorine in the compound KClO4?

asked Jan 21 in Inorganic Chemistry by ElmoMcColl39 (1.7k points)

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1 answer 134 views

When studying abnormal psychology, what is the biopsychosocial model?

asked Jan 20 in Psychology by LavadaKissne (2.4k points)

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According to the Ebbinghaus illusion, how does our perception of size vary with changes in context?

asked Jan 20 in Psychology by OliverOtis4 (2.3k points)

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A compound contains 42.8% carbon, 14.3% hydrogen, and 42.9% oxygen by mass. Determine its empirical formula.

asked Jan 22 in Inorganic Chemistry by DeanI7567799 (2.2k points)

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A reaction mixture initially contained 0.1 mol/L of reactant A and 0.2 mol/L of reactant B. When a catalyst was added, the rate of conversion of A and B to the product increased significantly. Calculate the new equilibrium concentration of reactant B if the equilibrium constant of the reaction is 0.1 and the initial equilibrium concentration of the product is 0.05 mol/L. Assume that the catalyst does not change the equilibrium constant.

asked Jan 22 in Chemical equilibrium by Shawn33B4717 (1.9k points)

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What is the solubility product constant of calcium hydroxide in water at 25°C?

asked Jan 21 in Inorganic Chemistry by DebraKeys12 (1.7k points)

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What is empirical support in relation to theories?

asked Jan 20 in Psychology by LeeAlder0448 (1.5k points)

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How can positive psychology be used to promote social change?

asked Jan 20 in Psychology by BettyWalsh4 (2.0k points)

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Who developed the Social-Ecological Model of Trauma Recovery?

asked Jan 20 in Psychology by FerminRosale (1.5k points)

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A student needs to determine the activation energy for the electrochemical reaction between zinc and copper sulfate using the Arrhenius equation. The student has experimental data that includes the rate constants and temperatures at which the reaction was performed. Using the experimental data, the student needs to calculate the activation energy for the reaction and explain the significance of this value in terms of the reaction kinetics.

asked Jan 22 in ElectroChemistry by EdwinLindell (1.9k points)

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1 answer 121 views

Where does the concept of 'existential guilt' come from?

asked Jan 20 in Psychology by AubreyWoore (2.4k points)

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1 answer 131 views

What is the impact of child-rearing on the parent's well-being?

asked Jan 20 in Psychology by MalloryMarco (1.3k points)

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What is the product formed when ethanol (CH3CH2OH) reacts with carboxylic acid (RCOOH) in the presence of a mineral acid catalyst? Write the mechanism of the reaction and name the functional group present in the product.

asked Jan 21 in Organic Chemistry by ChristelIdr7 (1.7k points)

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