10. Hydrogen sulphide becomes a superconductor at 203 K. Determine what this temperature is on the Celsius scale and Fahrenheit scale. Include an equation for each one. Show your work. 2

Q: what does 2.5M mean? A. there are 2.5 moles of solute B. there are 2.5 moles of solute per 100 mL…

A: we have to explain what does 2.5 M mean

Q: Part A: Determination of Densities of Pure Water and Calcium Chloride Solutions (1) Temperature of…

A: Concept used: Density = mass VolumeSpecific Gravity =Density of solutionDensity of reference

Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are…

A: Precipitation reactions are those which result in the formation of a insoluble solids..

Q: how did you get the dilution factor? is the dilution factor 9? or 91

A: To answer: how to get the dilution factor? is the dilution factor 9? or 91?

Q: Ms. Dunne added 2233.8 milliliters of water to 16.2 milliliters of NaOH solution to make a 3.60 x…

A: The equation for calculating molarity is the ratio of the moles of solute whose molarity is to be…

Q: 8. What volume of 0.200M HI is needed to neutralize 65.0 g NaOH? c. 13.0 L d. 8.12 L a. 0.325 L b.…

A: Given,0.200 M HI,65 g of NaOH

Q: What is the molarity of a 3.75 L solutions that contains 175 g of calcium chloride?

A: Molarity is a molar concentration.  It s a measure of the concentration of a  solute in a solution,

Q: How many mL of a 0.114 M sodium hydroxide solution contains 1,24 mol of sodium hydroxide? A. 10.0…

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Q: Creating a saltwater solution (as shown below) is a... NaCl(s) --> NaCl(aq)

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Q: 5 A,B,C,D

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Q: What concentration of 29.03 mL of H2SO4 can be prepared from 13.53 mL of 0.45 M H2SO4?

A:

Q: How many equivalents is 5.50 g nitric acid?

A: Equivalent weight is the mass of 1 equivalent which is mass of a given substance that will combine…

Q: A lab prepared a solution of sulfuric acid with a volume of 5.0x10-4 m3. The solution is further…

A: Molarity is defined as the number of moles of solute dissolved in 1 L of solution. The unit of…

Q: 13. A 800.0 L sample of drinking water is found to contain 2.00 mg of arsenic. What is the…

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Q: What mass of KBr (in grams) should you use to make  319 mL of a 1.59 Msolution of KBr? The molar…

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Q: What mass of K2CO3 is present in 0.575 L of a 0.611 M Na2CO3 solution? a. 130.1 g b. 146.8 g c. 65.7…

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Q: What is the mass of 2.2 x 10 ° CO 2 molecules? O a. 1.0 x 10-12 g O b.1.6 x 10-13 g O. 12x 106 g O…

A:

Q: 0,500L 40.03 19. What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of a. 3.0 L c.…

A: In the given question, molarity and moles are given. We are asked to find the volume of the…

Q: Ques If 450 g of magnesium hydroxide is dissolved in water to make 6.5 L of solution, what is the…

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Q: How would you prepare 294 mL of 0.299 M NaCl solution using an available 1.31 M solution? O Dilute…

A:

Q: For each of the equations, determine the change in the number of moles of gas, Angas. (NH4)₂CO3(s)…

A: Given that, Equations-  1.(NH4)2CO3(s)---->2NH3(g)+CO2(g)+H2O(g) 2.H2(g)+Cl2(g)------>2HCl(g)…

Q: If 21.1 grams of an aqueous solution of copper(II) fluoride, CUF2, contains 3.81 grams of copper(II)…

A:

Q: 59 NAOH ate dissolved in wador to makie I1,4% M/m NaOH Solunon. what is The Mass of the Solunon ?

A: Applying wight percentage formula %=( m/M)×100

Q: The solubility of an ionic solid is 124.3g/100g of water at room temperature. What is the maximum…

A: Solubility of ionic solid = 124.3 g / (100 g of water) Temperature is constant. Now we need to…

Q: where does the 0.693 come from?

A: Radioactive decay follows first order kinetics .

Q: 3. Molality How many grams of solute is present in 2.5 moles Magnesium hydroxide, Mg(OH)2 in 669 g…

A: Molar concentration of a solution can be defined as the number of moles of solute dissolved per…

Q: hat volume of

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Q: The slopes of the lines in graph 1 can be interpreted as a useful quantity around the lab if you…

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Q: What is the concentration of a NaCl solution made from taking 22.64 mL of a 12.67M NaCl solution and…

A: Given information: Initial volume (V1) = 22.64 mL Final volume (V2) = 1.25 L Initial concentration…

Q: A laboratory experiment calls for you to make 2.00 L of a 1.20 M KNO3solution. You have a 6.00 M…

A: In order to calculate the amount of solution required to dilute we first write down the given data:…

Q: 1. Write balanced net ionic equations to explain the observations in the options assigned by your…

A: E) Copper wire dissolved in Concentrated Nitric acid evolving nitrogen oxide gas. (F) In areas where…