Table 3.6 Physical Properties of Common Substances State at Boiling Point (°C) Substance Color 25°C Oxygen colorless gas -183 Water colorless liquid 100 Sucrose white solid decomposes Sodium chloride white solid 1413

Q: A sample of an unknown hydrated compound weighed 16.450 grams. After heating, it had a mass of…

A: We have to calculate the percentage of water by mass in the unknown hydrated compound that weighed…

Q: TRUE OR FALSE 1. A heterogeneous mixture can be separated into pure substances, but a homogeneous…

A: Mixture  A mixture is the physical combination of two or more substances in which the identities are…

Q: You were asked to separate sand and sodium chloride in water. choose three methods to separate the…

A: Physical separation (picking out pieces or utilizing density to shake sand to the top), dissolving…

Q: Oil and water do not mix with each other. But when we add oil into water, oil floats over the water.…

A: Oil do not mix with water as oil is non polar and water is polar molecule and polar dissolve in…

Q: Sublimation, Extraction, Decantation, Filtration, Evaporation 1.Of the 5 methods listed for the…

A: The combination of soil, clay, or silt and water provides the suspension termed as mud. If the…

Q: A homogeneous mixture is made by dissolving 4.23 grams of solid potassium cyanide in 1000 g of…

A: It is given- 4.23 grams of Potassium cyanide is added to 1000g of water and it makes a homogeneous…

Q: A hydrate initially weighs 5.821 grams and is heated. After heating it weighs 3.331 grams. Assuming…

A: •Here given weight of hydrate initially :-             W1 =5.821 gm  •Weight after heating:-…

Q: A glucose solution is frequently used as an intravenous (IV) solution to supply hydration and/or…

A:

Q: A chemical change

A: Chemical changes occurs when a substance reacts with another substance which results in the…

Q: Use the information and models to answer the following questiön. A group of students are trying to…

A: Electrical conductive material are those which can transfer charge from one end to other end.

Q: A chemist has two different gasohol mixtures available. One contains 20% alcohol and the other 12%…

A:

Q: . Sample Four was the only one that was soluble in a nonpolar solvent. What does this suggest about…

A: As this is multipart question, first three questions are solved here. Please re-post rest of these…

Q: 4. When 2.00 grams of KMN04 is dissolved into 100.0 mL of solution, what normality results? How many…

A: Molarity is defined as the number of moles of solute dissolved in 1 L of solution while normality is…

Q: 66. Using the picture below, describe the test sample placed in the watch glass. White crystalline…

A: The nature of above compound is decided on the basis of its physical appearance.

Q: Question 3: Heat Capacity and Latent Heats a. Revolutionary War soldiers made their own musket balls…

A: Given :-   Mass of Lead, Pb= m = 21 g  Initial temperature of Pb = Ti = 25 °C  Final temperature of…

Q: The shattered glass case at the scene of a jewelry store robbery was determined to be made of potash…

A: Density of any substance can be defined as the ratio of the mass of the substance to its volume. It…

Q: If you calculated the molar mass of your unknown liquid to be 70.1 g/mol, which of the following do…

A: Given-> Calculated molar mass of unknown liquid =70.1 gm/mole.

Q: 3. As we have seen, hexane is nonpolar and if mixed with water would not dissolve. Instead two…

A: 3) Density is defyaa the ratio of mass to its volume.  Density= mass ÷ volume

Q: 6.Matter is classified as follows a)Ätoms and molecules b) Pure substances and mixtures.…

A: Any thing which has mass, occupies space and can be perceived by human senses is known as matter.

Q: Consider this Lewis structure and the curved arrow(s) shown. H H Part: 0/2 Part 1 of 2 +1 H Draw the…

A: As the electrons move away from the carbon, the carbon gets positive charge.As the electrons move…

Q: A chemist has a 19.50g sample of drinking alcohol (ethyl alcohol). what is the volume ogf the…

A: The relationship between mass and volume is given below.

Q: Atomic mass of Na = 22.98976928 ±0.00000033 g/mole Atomic mass of Cl = 35.4570± 0.0027 g/mole Mass…

A: Molarity of a solution is defined as the number of moles of solute present in 1 L of the solution.…

Q: Determine the kind of relationship that exists between salinity and chlorinity • Equation 3.4…

A: The equation is, Salinity = 1.80655 × Chlorinity So, Salinity/chlorinity = 1.80655

Q: copper (II) chloride + iron → copper + iron (II) chloride List two physical / chemical properties…

A:

Q: (BASIC QUESTIONS) Choose or tick the phase of matter that is being described CHOICES: GAS LIQUID…

A: Matter is divided into three different category named as solid, gas and liquids depending on the…

Q: Suppose you need a tank of oxygen that is 95% pure. Describe a process by which you could obtain…

A: Liquid nitrogen and oxygen are completely miscible, so the free energy of the mixture is everywhere…

Q: Another hydrated compound containing Sodium, Boron and Oxygen was investigated.  250.00 g of the…

A: When NawBxOy×Z H2O is heated, the water molecules attached are removed and then decomposed to give-…

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: Is air a solution or a heterogeneous mixture? What technique can be used to separate air into its…

A: Air is mixture of many gases like Nitrogen, Oxygen, Carbon-dioxide etc. These gases makes up the…

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A: An instrument used to determine the weight of samples used in analysis is called a weigh balance.…

Q: 1. A mixture (shown below) contains the following components: (1) salt, (2) water, and (3) gasoline.…

A: We are given a mixture of three components i.e salt + water + gasoline.

Q: The solubility of benzic acid in water at room temperature is 0.38 g per 100 ml of water. If 4.62 g…

A: When benzoic acid is dissolved in 100 ml of hot water (assume all the benzoic acid dissolves) and…

Q: An alcoholic drink contains 44% alcohol by volume. Calculate the volume in ml of alcohol present in…

A: Volume by volume percent (V/V %): It is calculated as the volume of solute divided by the volume of…