A material has a specific heat of 0.625 J/g°C.  A 75.6 g sample of this material is heated  and them placed in 35.2 g of water at 21.4 °C.  The temperature of the water rises to 32.7 °C.  What was the initial temperature of the material?

Q: Nitrates are natural chemicals that are found in the soil, air, and water. Nitrates are also used as…

A: Given,  The mass of M(NO2)2 = 61 g.  The atomic mass of N = 14.01 g/mol…

Q: Estimate the IR stretching frequency (in cm³¹) for the indicated bond in the molecule below. Do not…

A: Given ,  Bond under consideration C=O

Q: d Iron metal reacts with chlorine gas giving iron(III) chloride. The balanced chemical equation for…

A:

Q: What volume of 0.860 M HCl, in milliliters, is required to titrate 2.01 g of Na2CO3 to the…

A:

Q: Black smokers are found in the depths of the oceans. Thinking that the conditions in these smokers…

A:

Q: Specifying Hotspot End Position Instructions Make the ends of your curved arrows specify the…

A:

Q: A solution is prepared such that the initial concentration of A2+ is 1.50×10-3 M and the initial…

A: The equilibrium constant of a reaction is the ratio between the product's concentration to the…

Q: What is the hydronium ion concentration of a 0.0020 M solution of HNO3? Concentration = What is its…

A: Given, Concentration of HNO3 solution = [HNO3] = 0.0020 M Concentration of hydronium ion = [H3O+] =…

Q: A sample of Nitrogen at 15.0oC exerts a pressure of 0.279 atm. Calculate the final pressure in atm…

A:

Q: Transmittance (%) 100% 75% 50% 25% 0% 4000 3500 3000 مل ОН 2500 2000 Spectrum 3B 1750 سمه 1500…

A: Carbonyl (C=O) stretching value comes ~1700 to 1800 cm-1. As in the given spectrum, there is not…

Q: STARTING AMOUNT X 1 A light bulb consumes energy at a rate of 80.0 joules per second. How long in…

A:

Q: Some HI is placed in a sealed flask and heated to 793 K. When equilibrium is reached, the flask is…

A:

Q: Chemistry Question

A:

Q: In which state of the following compounds does nitrogen have the most positive oxidation state? O…

A:

Q: Provide the correct IUPAC name for the compound shown here. H3C Br Br Br Br

A: IUPAC naming : It is the set of method of naming any organic compound according to defined criteria…

Q: 2. & ((A) (C) i + CH3 -C-H KOH A & i CH, - CH, - C – CH, – CHO major product: CH = CH₂ (B) (D) CH₂-…

A: Here the driving force for the reaction is to get relief from the bond starain that occurs in three…

Q: free energy. kJ/mol 5 20 15 10 O 10 kJ/mol O 5 kJ/mol O 15 kJ/mol reaction coordinate O more…

A: Activation energy is the minimum amount of energy which reacting species must possess in order to…

Q: Which of the following is a tertiary alkyl halide? O 1-Bromo-2-methylpropane O…

A:

Q: For the following reaction, 8.20 grams of carbon (graphite) are allowed to react with 10.3 grams of…

A:

Q: Menthol, from oil of mint, has a characteristic odor. The compound contains only C, H, and O. If…

A:

Q: Identify the major and minor products for the E2 reaction that occurs when each of the following…

A:

Q: Which of the following statements regarding the kinetic molecular theory of gases is NOT correct?

A:

Q: H₂N- 010 i CH-C CH₂ 1 CH₂ CH₂ CH₂ NH₂ T₂ A tripeptide consisting of serine, lysine, and…

A: Question 18: Given that, a tripeptide contains serine, lysine and Phenylalanine. We have to identify…

Q: Write the balanced chemical equation (including the phase of matter) and chemical equilibrium…

A: Balanced chemical equation is the chemical reaction in which the total charge and the number of…

Q: What is the expected major product of the following reaction? Br Br HBr ?

A:

Q: Give the IUPAC name of the product that would form when the following alkene undergoes catalytic…

A: IUPAC Rules for naming an organic compound: 1. Consider a longest carbon chain with maximum number…

Q: A 0.4455 g sample of a pure soluble chloride compound is dissolved in water, and all of the chloride…

A: Given that, Mass of chloride sample = 0.4455 g Mass of AgCl formed = 0.9496 g We have to calculate…

Q: Draw and describe how water would dissolve a magnesium ion (Mg2+) and a bromide ion (Br1-)

A: The solubility of a compound can be determined by the like dissolve like rule, that is a polar…

Q: An Alka-Seltzer tablet contains exactly 75.0 mg of citric acid, H3 C6H5O7, plus some sodium…

A:

Q: In the smelting of iron from iron oxide according to the equation, in the direction in which it is…

A: Given -> Fe2O3(s) + 3CO(g) ------> 2Fe(s) + 3CO2(g) -> The oxidation state of element…

Q: H3C- ~ OH H H :ÖH H3C-C-H H Aco Dess-Martin periodinane provides a means to oxidize a primary…

A: In a reaction mechanism, the curved arrows describe the movement of electrons. The movement of…

Q: N 1. LiAlHy 2. H30+, д Н30

A:

Q: OD B O A OC Which of the following is an energy diagram for a two-step reaction? free energy. kJ/mol…

A: we have to select the energy diagram that represents a two step reaction

Q: molecule polarity isomers or resonance structures SO4 2-     CO3 2-     CH2Cl2     C2H4     C2H2Br2…

A:

Q: Rank the following solutions and compounds from the most conductive to the least conductive.…

A: In this question, we will arranged the compounds or solutions in decreasing order of their…

Q: Convert 23.5 g of gold (Au) to number of moles

A:

Q: The distillation flask is best     completely filled with mixture   as large as available…

A: At the beginning of the distillation, the distillation pot should be between one-half full and…

Q: A solution has a pOH = 3.45. Calculate [H] [Select] [ Select] 10.55 Calculate [OH 2.8x10-11 2.8x10-3…

A: pOH is defined as the negative logarithm of hydroxyl ion OH- concentration of base ten .The…

Q: Give the possible values for my for an s orbital. 00 O-1,0, 1 O 0,1 01

A: We have to determine the possible values of ml for s-orbital

Q: mmonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying…

A:

Q: Calculate the heat of reaction AH for the following reaction: 2 HBr(9) H₂(g) + Br₂(9) You can find a…

A: A question based on chemical thermodynamics that is to be accomplished.

Q: Question 19 of 24 Provide the correct IUPAC name for the compound shown here. SH

A: Write IUPAC name of the given structure ?

Q: The aluminum in a 0.767 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: given: mass of sample of unknown material =0.767 g mass of aluminium oxide produced = 0.143 g…

Q: Based on the structure listed below, indicate the set of stretching frequencies that would be…

A: Here a organic compound is given we have to match it with its IR data.

Q: If the unknown liquid in letter e has a volume of 5.0mL and a mass of 1.95g. what is its density?…

A:

Q: Explain how you would apply the principles of rigidification to the structure below in order to…

A: We have find out the principle of rigidification.

Q: Mr. Ragusa asks Hannah to make copper crystals from the following reaction. Cu(NO3)2 + 2Na -->…

A: Here we are required to find the percent yield of the experiment

Q: Commercial sodium "hydrosulfite" is 90.1% Na2S2O4. The sequence of reactions used to prepare the…

A:

Q: Which of the following is not a unique property of water? It prefers to be in the partially-bound…

A: Water is itself a very unique compound and it is so because of its unique properties. Some of these…

Q: Nitrogen dioxide and water react to form nitric acid and nitrogen monoxide, like this: 3 NO₂(g) +…

A: