solve question 2,  Q2: What is the effect of the following conditions on the molar mass of unknown? (increase, decrease, no effect) A) If the test tube contains insoluble impurities.. B) If the thermometer reading is 1.5 °C higher than the correct temperatures

Q: Use dimensional analysis to show all work: How many grams of excess reagent is used and how many…

A: Limiting reagents are those reagents that are completely consumed during a chemical reaction. It…

Q: STATEMENT OF THE PROBLEM Problem 2: Consider a 250.0 mL solution that contains 0.215 mole KNO3. What…

A: Answer: In both the questions we have to find out the molar concentration of the solution where in…

Q: Under certain conditions, the substance ammonium nitrite can be broken down to form nitrogen and…

A: The reaction is the decomposition of ammonium nitrite into nitrogen and water.The mass of ammonium…

Q: +2 3H₂2₂)= Exercise 4. In the hydrogen economy, the production of H₂ is based on solar energy and…

A: The hydrogen economy presents a promising alternative to traditional fuel sources by utilizing solar…

Q: (b) Consider the reaction: FeO3 + 3 Zn → 3 ZnO + 2 Fe (i) Calculate the percentage yield of 11g of…

A: Fe2O3 + 3Zn ==> 3ZnO +2Fe  Formula used :  Percent yield =( actual yield /theoretical yield)×100

Q: A 5.500g mixture of sodium chloride, silicon dioxide, and ammonium chloride wasn’t heated by in…

A: The amount of NH4Cl present in the original mixture = 5.500 g x (22/ 100) =1.21 g

Q: Is that 32 grams of oxygen gas (32g/mol) or atomic oxygen (16 g/mol)? Because this looks like a…

A: Yes this is stoichiometric problem:

Q: np of methanol and 1-propanol are 1.331 and 1.387 respectively. Calculate the mole percentage of…

A: Mole of methanol = 1.331 mole  Mole of 1-propanol = 1.387 mole

Q: How to determine the number of moles of the C8H10N4O2, C,H,N,O in 0.1119mg of caffeine C8H10N4O2?…

A: The moles of compound is calculated by the following formula,

Q: Q1. Calçulate moles of NaC,H;O; (s), then use greaction to calculate AH,eation for anhydrous sodium…

A: Formual to calculate ∆Hreaction  is given as : ∆Hreaction  = - qreaction / n  where, n = moles ,…

Q: e moles of a

A:

Q: How many g of ZnS is needed to react completely with 41.22 gram O2 according to- this equation? 2ZnS…

A:

Q: 6.57 Nitroglycerine, C,H,(NO,),(1), a powerful explosive used in mining, detonates to produce a hot…

A: We have given that ∆Hrxn = -2.29×104KJ The balanced equation for reaction 4C3H5(NO3)3(l)  → 12CO2(g)…

Q: Given the following equation: 2KClO3=2KCl+3O2 Determine the mole ratio for KCl to O2.

A: Balanced chemical equations are those in which number of atoms on both side of reactant and product…

Q: Please help me with tyhis problem and the right sig fig because I got as the molar of the compound…

A: This are some rules of significant figure you should know-

Q: Ammonium phosphate (NH,),PO,) is an important ingredient in many solid fertilizers. It can be made…

A:

Q: How many moles of NH, form when 32.4 Lof H gas completely reacts at STP according to the folowing…

A: For the given reaction: According to the given conditions: Therefore assume, It can be solved as:…

Q: Complete the calculations in the following table: Mass of Moles of Volume of Volume of Unrounded…

A: The explanation is given below-

Q: In order to test the claim, your friend heats 5.0 g of CaCO3 strongly for 10 minutes over a Bunsen…

A: Calcination is a process of heating the concentrated ore such as carbonate or hydrated ore to high…

Q: Nitrogen (N,) gas and hydrogen (H,) gas react to form ammonia (NH,) gas. Suppose you have 13.0 mol…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: How many grams of \(\rm H_2\) are needed to produce 14.41 \({\rm g}\) of \(\rm NH_3\)?

A: The reaction to produce ammonia from hydrogen is given by  N2 + 3 H2 ------> 2 NH3

Q: Determine the correct mole ratios, yes, you will select more than one, for the following balanced…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: Calculate the number of (a) moles of N, and (b) atoms of N in 12.7 g of nitrogen gas, N2. You do not…

A: Given here the amount of nitrogen gas ( N2) =12.7 gramsand molar mass of nitrogen gas ( N2) =…

Q: balance the following imaginary equation using real principles for a real equation _______ QX4 +…

A: • The given imaginary equation is,                    QX4 + A2Z →QZ2 + AX    • We need to balanced…

Q: What mass in grams of a ferrous salt in grams is required to prepare a 461 mL of 0.042 M ferrous…

A:

Q: No need to explain. Just give the answers directly. Thank you. 1. If your final answer is 87.999824…

A: Given:1)We have to write 87.999824 as a final answer.2)We have to write 0.2300234 as a final…

Q: Question: What is the MW of NaCl? grams = 1 Mole of Nacl Question: How many molecules of NaCl are in…

A: Molecular weight of any molecule is defined as sum of atomic weights of all the atoms present in…

Q: How many g of ZnS is needed to react completely with 37.72 gram O2 according to this equation? 2ZnS…

A:

Q: 1. Given the folowing reaction: Na,5,0, + AgBr - NaBr + Na:[Ag(S,0,):] (a) How many moles of Na 5:0;…

A:

Q: Answer should be in Grams, Thank you

A: Mass of vinegar (g) = 3.06 gram Buret reading, initial (mL) = 25.40 mL Buret reading, final (mL) =…

Q: 1g of solid magnesium hydroxide is reacted with 2g of solid NH4Cl (ammonium chloride) to produce…

A: The theoritical yield can be determined by knowing the limiting reagent.

Q: How would I find the mass and moles of the solute?

A: Here, we have to explain how one can find the mass and moles of solute.

Q: How do you find the delta Hrxn in J/mol?

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Wine goes bad soon after opening because the ethanol CH3CH2OH dissolved in it reacts with oxygen…

A: We have to predict the moles of acetic acid Produced.

Q: olume Report Form Important Note: Be sure to record all digits displayed on the balance and to…

A: Gay-law Lussac's indicates that the pressure of a gas at constant volume is directly proportional to…

Q: Calculate the moolar man of LON remember to give the arewer to 2 dedmal places, and include the…

A:

Q: PERCENT WATER IN A HYDRATE DATA/CALCULATION SHEET NAME 1. crucible, cover, BaCl2 2H2O \8,ao6!…

A: Mass of crucible and cover 14.0188 g Mass of crucible, cover and BaCl2.2H2O 18.2061 g Mass of…

Q: 2. Briefly explain why it is essential that none of the yeast comes into contact with the H₂O2…

A: H2O2 should come into contact with yeast before the stoppers are firmly placed as the oxygen…

Q: In a reaction between 0.8255g of calcium chloride dihydrate and 5ml of 5M sodium carbonate, what is…

A: Given:: Mass of CaCl2 = 0.8255 g , molar mass= 110.98 g mol-1 Molarity of Na2CO3 = 5M , V= 5 ml =…

Q: A mixture of C3H8C3H8 and C2H2C2H2 has a mass of 2.7 gg . It is burned in excess O2O2 to form a…

A: Given: The mass of the mixture of C3H8 and C2H2 is 2.7 g. The ratio of moles of carbon dioxide…

Q: YouTube Maps MyCSU Columbus... - B Homepage - Georg... W Microsoft Of MATTER mass percent…

A: Solution is made up of solute and solvent. Solute is present in small amount and solvent is present…

Q: Find the number of moles of water that can be formed if you have 114 mol of hydrogen gas and 62 mol…

A: 1. Solution -

Q: 4) 4.50 mole CO(g) to liters 5) 3.20 mole CI,(g) to liters 6) 27.0 mole Kr (g) to liters

A: Number of moles of a substance is equal to the volume of substance divided by its molar volume.

Q: Part I: 1. Mass of KC103 2. Volume of water displaced 3. Temperature of water 4. Atmospheric…

A: First we need to calculate moles of oxygen gas using mass of KClO3 . Then using moles, pressure,…

Q: 1. Temperature (room) 2. Atmospheric Pressure 3. Density of dry air 4. Mass of flask + air + stopper…

A: Given is the data of an experiment.

Q: Unit 2: Han purple, a synthetic inorganic pigment developed in China in ancient times, has the…

A: Mass percent of a particular element denotes its amount in the given compound. Total mass of a…