Boil 50 mL of distilled water in the Erlenmeyer flask with a small flame and take the temperature. The temperature reading is 98.0°C. The bulb of the thermometer must not touch the bottom or sides of the Erlenmeyer flask. Dissolve 2.83 grams of urea in 10 grams of distilled water in another Erlenmeyer flask. Boil the solution gently and record its boiling point. Temperature reading is 101°C. What is the effect of solutes on the boiling point of liquids?

Q: Rank the following types of electromagnetic radiation in order of decreasing energy. a) b) c) d) 4. ...

A: To solve this problem we will use the frequency of electromagnetic radiation . 

Q: Sodium lauryl sulfate is present in embalming fluids as a     surfactant     catalyst     buff...

A: 1st option is correct that is surfactant.   

Q: A chemist does an experiment where he expects to produce 6.669 moles of calcium phosphate, Ca3(PO4)2...

A:

Q: In the qualitative tests for SULFATE and SULFITE ions, explain or discuss why SULFATE ions will NOT ...

A: Given that, the qualitative tests for sulfate and sulfite ions. Also, sulfate ions will not form a p...

Q: 16. Select the correct statement below: Phosphorous contains 10 core electrons and 5 valence electro...

A: Filling of electrons in orbital obeying hund’s rule and Pauli principle.

Q: Determine the product of the following reaction:

A: The given reaction is an example of diels-alder reaction.   

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE): CH...

A: Given, moles of H = 93.9 moles  moles of O =?

Q: 7. A gas expands against a variable opposing pressure given by p = 10/V atm; where V is the volume o...

A:

Q: C(9) + 2 H,0(@) — со,(g) + 2H, (8) Кр 3 3.95 H, (g) + CO, (g) = H,O(g)+CO(g) %3D

A: multiple equation 2 by 2 and add to equation 1 to obtain: C(s) +2H2O+ 2H2+ 2CO2 ------- >CO2 + 2H...

Q: conversion factor is a fraction with one unit on top and a different unit on the bottom. True or Fa...

A: Density of a substance can be defined as the mass of a substance per unit volume of that substance.

Q: If a 14.0 g chunk of gold at 20.0°C is dropped into 25.0 g of water at 80.0 °C, what is the final te...

A: Given, For Gold: Mass of gold (mGold) = 14.0 g Note: Specific heat capacity of gold (CpGold) = 0.129...

Q: Which of the following type of bonds has the ability to attract forces between electronegative atoms...

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

Q: -1 1 and a temperature of 81.1 °C is placed into 2.00L of v

A: Using Heat conservation , Heat loss by metal = Heat gain by water  (m.s.□T)m = (m.s.□T)w Where,  m =...

Q: How many moles is 219 grams of copper (II) bromide, CuBr2?

A: Given that, mass of CuBr2 = 219 g molar mass of CuBr2= 223.37 g mol-1 moles of CuBr2 =?

Q: Paraformaldehyde is a polymer of    A. acetone   B. paraform    C. formaldehyde    D. acetal...

A:

Q: b) Pyrrole and indole both react with the reagents shown below to give compounds E and F respectivel...

A:

Q: Ammonium perchlorate (NH,clo,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts wi...

A: Ammonium perchlorate decomposes into nitrogen, chlorine, oxygen, and water. The equation for the bal...

Q: 3) Which product would be isolated from the reaction shown? Draw the reaction mechanism. 1. BH3/THF ...

A: Here the alkyne acts as nucleophile and BH3 acts as electrophile and the reaction occur between thes...

Q: Mixing water and arterial fluid in the reservoir of the machine is called secondary dilution.  True...

A: mixture of arterial fluid  with water and /or supplemental fluids is called primary dilution.   

Q: The list below pro observe. Some are scientifically true while others are mísconceptions. Your task ...

A:

Q: Which of the following statements is true about activation energy in chemical reactions? O By increa...

A:

Q: thermometer A 56.0 g sample of iron, which has a specific heat capacity of 0.449 Jg.C, is put into a...

A: We have to use the principle of calorimetry which says hear given = heat absorbed.  We know q=mC∆T w...

Q: 14. How many unpaired electrons are present in the orbital diagram of Se? a) b) c) 0. d) 3 12 O

A:

Q: Using specific heat capacity to find temperature change A chemical reaction takes place inside a fla...

A:

Q: controlled

A: A- Hyperplasia - It is the Increased cell production in a normal tissue or organ but it is not like ...

Q: How much energy is needed to heat 15.0 g of water (18.02 g/mol) from 30.0 to 50.0 °C?  Potentially u...

A:

Q: List the (i) metal oxidation state, (ii) d-electron count, and (iii) total electron count for each o...

A: Here we will use neutral method to calculate total electron count in the molecule. We have to consid...

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first st...

A:

Q: Shown is an IR spectrum of a gas sample, determine what couild be wrong with the spectra?

A: Gaseous samples are also analyzed by IR spectroscopy like any other sample.

Q: Hydrogen iodide gas is formed from its elements with a value for Kp = 25.5 at a certain temperature:...

A:

Q: Consider the following acids and bases: HCO2H    Ka = 1.8 × 10-4 HOBr    Ka = 2.0 × 10-9 (C2H5)2NH ...

A:       Given :      the values of the dissociation constant for the following acids and bases. HCO2H ...

Q: s nuclear equation?

A:

Q: Give the major organic product of the following reaction, include stereochemistry as appropriate 1. ...

A: Given incomplete reaction is : Give the major organic product of the following reaction, include st...

Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium b...

A: Answer: This question is based on the stoichiometric calculation of the reaction that we have perfor...

Q: UA MeO B. Meo Eto ui) Ht Workup - Wnat is the reagent A2 -5tate the conditions por step i) Diaiu tne...

A: To answer the questions related to the given organic reaction. Since, you have multiple questions wi...

Q: Calculate the molecular mass of the compounds represented by the chemical structures. Round to the h...

A:

Q: How many grams would be found in 7 moles of calcium sulfate, CaSO4?

A:

Q: Cyclohex-4-ene -1,2-dicarboxylic acid (mp 165°C) A X 4. xylene H20 -SO2 Cyclohex-4-ene -1,2-dicarbox...

A: Chelotropic reaction is also a type of pericyclic reaaction. Bond breaking and making occurs simulta...

Q: For each of the following sets quantum numbers, give the atomic orbital designation for each row. 11...

A: n = the principle quantum number l = the orbital angular momentum quantum number ml = the magnetic q...

Q: Describe 3 methods of pH determination.

A:

Q: A sample of He occupies a volume of 322 mL at 149.2 kPa. What volume in ml would the gas occupy if t...

A: Boyle's gas law states that pressure of gas is inversely proportional to the volume of gas.

Q: Order the elements S, Cl, and F in terms of increasing atomic radii. a) F, Cl, S b) Cl, F, S c) F, S...

A: Answer: This question is based on the periodicity where physical properties of an  element changes a...

Q: A sample of gas occupies 36.1 mL at a pressure of 656.5 torr.  What is the new volume if the pressur...

A:

Q: The element which causes the greatest polarity within an organic molecule is ___.     oxygen     ...

A: The covalent bond is formed by the sharing of electrons between the atoms.

Q: The chemical on this list which is NOT injected through the embalming machine because it will destro...

A: Please find your solution below :  Embalming is a treatment and technique which is used to preserve ...

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first st...

A:

Q: Rank the samples of gas described in the table below in order of increasing average speed of the ato...

A:

Q: Is the following solution a buffer? Each solution was prepared by mixing and diluting appropriate qu...

A: An acid is a substance that give hydrogen ions in solution and a base is a substance that give hydro...

Q: Liquid hexane (CH,(CH,) CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

A:

Q: How many grams of K2CrO4 are found in a sample containing 0.186 moles of this compound?

A: