A 10.0 mL sample of oil is transferred into a beaker with a mass of 43.559 g. The mass of

Q: A student dispensing a solution (the volume is between 20-30 mL) into a reaction container using a…

A: The least count of volumetric buret is 0.01 mL. Hence the reading should be taken upto 2 decimal…

Q: A 24.5g sample of solution has a density of 0.768g/mL. What is the sample volume (in mL)?

A:

Q: How many miligrams are in 612 grams?

A:

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: how many grams are in 11 kilograms and how many millilters are in a 0.076 liters?

A: It looks like there are two parts in the question. Please find the solution below,Part a:  How many…

Q: A sample is found to contain 9.80×10-5 g of salt. Express this quantity in milligrams.

A: It is given that mass of the salt in the sample is 9.80×10-5 g

Q: A student measures out a 50.3 g sample of sodium hydroxide. What is this mass in kilograms (kg)?

A:

Q: What is the equivalent in joules of 126 Calories?

A: joule and calories are the unit of energy , joule is the SI unit of energy.

Q: In a laboratory experiment, a 19.0 −mL−mL sample of KClKCl solution is poured into an evaporating…

A:

Q: What mass of sodium chloride and what volume of water a.

A: The mass percentage of any substance is given by the formula below. Mass percent=Mass of the…

Q: A 35.0 mL sample of wine (density = 0.789 g/mL) is added to a glass that has a mass of 49.38 g.What…

A: Density of wine = 0.789 g/mL Volume of wine = 35.0 mL The relation between density, mass and volume…

Q: A solution is made by dissolving 8 grams of a salt in 100 cm³ of water (density = 1 g/cm³). Assuming…

A: Given: Mass of salt = 8 gm Volume of water = 100 cm3 Density of water =  1 g/cm3 We know that,…

Q: A 9.55g sample of a solid was placed in a 15.00-ml flask. The remaining volume was filled with…

A: Density of a substance is defined as mass per unit volume.It is given by the formula

Q: A solution of sucrose in water is 28.0% sucrose by massand has a density of What mass of sucrose,in…

A: Solution-  percentage of the sucrose in the given solution=28% by massits mean 28 g sucrose in the…

Q: A solution contains 10.05% sucrose (cane sugar) bymass. What mass of the solution, in grams, is…

A: The concentration of a substance can be measured in terms of mass by mass percentage. This…

Q: A contractor has 215 bags of cement. Each bag weighs 25.0 kg. How many tonnes of cement does the…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: A patient is prescribed 0.100 mg of a drug that is available in 25- μg tablets. How many tablets are…

A: Different units are used to express the volume and mass of substances such as grams, micrograms,…

Q: 18/8 stainless steel is made up of 18% (m/m) chromium and 8% (m/m) nickel in iron. What mass of iron…

A: Mass percentage of chromium = 18 % Mass percentage of Nickel= 8% Mass percentage of iron = 100 - (18…

Q: If 12.87 mL of a salt solution weighs 13.357 g, what is the density of the salt solution?

A: The relation between mass, volume and density is as follows : Density = mass/volume

Q: Twenty grams of potassium dichromate (K₂Cr₂O) is dissolved in 150 mL of water What is its normality…

A:

Q: The density of liquid bromine is 2.928 glcm³. The volume of 29.572 g sample is?

A: Density can be defined as mass of substance per unit volume. The mathematical expression for density…

Q: A 9.55-g sample of a solid was placed in a 15.00-mL flask. The remaining volume was filled with…

A: Given that 9.55 g sample of solid was placed in 15.00 mL flask and remaining volume was filled with…

Q: a fish tank hold 35 gal of water. how many kilograms of water are in the fish tank.

A: A fish tank hold 35 gal of water. Here we are asked to calculate how many kilograms of water are in…

Q: In a butane lighter, 9.8 gg of butane combines with 35.1 gg of oxygen to form 29.6 gg carbon dioxide…

A:

Q: When determining the density of a pure liquid or a solution, the temperature of the sample must be…

A: Density of a substance is the ratio of its mass and volume. It is a measure of mass per unit volume.…

Q: A patient needs 1.5 g of a solid must be given to the patient pe O 60 tablets

A: The dose of a drug: it is the quantitative amount taken by patient for the intended medicinal effect…

Q: 1. What pieces of apparatus or equipment are used for measuring: a. Temperature? b. Small amount of…

A: Answers of above questions given below.

Q: A blood sample of 3.41 milliliters is collected from a patient to be nalyzed for a platelet count.…

A: Given that human blood has 1.04 kg/l platelets. And we have blood 3.41 ml

Q: A cement mixer can produce 88.20 pounds of cement mix for 27 minutes. How many hours would it take…

A:

Q: What is the equivalent weight of the vehicle?

A: below.

Q: The following particulate-level diagram best represents a(n).

A: We are given a particulate-level diagram as follows:

Q: The Daily Value for phosphorus is 900 mg How many grams of phosphorus are recommended? Express your…

A:

Q: A chemical reaction takes place to allow hand warmers to give off heat. This is an example of a(n)…

A:

Q: Suppose a student places a beaker on his balance and does not tare it. Then, he adds three…

A: Here you should understand that if you have nothing in the beaker it is the empty weight of beaker.

Q: How would i convert 0.01 ng per microliter to mililiters.

A: In general concentration of a solution is expressed with units like ng(Nanogram)/Microliter or,…

Q: A chemist prepares a solution of calcium sulfate (CASO) by weighing out 0.06781 g of calcium sulfate…

A:

Q: A 1.59g sample containning KI was analyzed gravimetrically and .0538g of barium iodate was…

A:

Q: Suppose a student places a beaker on his balance and does not tare it. Then, he adds three…

A: The data given is,   Before After distilled water 57.160 g 70.990  g sodium acetate 70.990…

Q: A bottle containing 425 g of cleaning solution is used to clean hospital equipment. If the cleaning…

A:

Q: A 9.55-g sample of a solid was placed in a 15.00-mL flask. The remaining volume was filled with…

A: Given: Mass of solid sample = 9.55 g Volume of flask = 15.0 mL Mass of solid and benzene = 19.33 g…

Q: How many mL of 0.888 molar magnesium chloride must a scientist pour into a beaker to have 19.0 g of…

A:

Q: What is the si unit for the mass of flour

A: The International System Of Units abbreviated as (SI) is defined as a metric system which is used as…

Q: 18/8 stainless steel is made up of 18% (m/m) chromium and 8% (m/m) nickel in iron. What mass of iron…

A:

Q: A chemist prepares a solution of silver(I) nitrate (AGNO,) by measuring out 413. umol of silver(I)…

A:

Q: 36 ouncew of beer is equivalent to how many standard drinks?

A: 12 ounces of standard beer (regular) contains 5% alcohols.24 ounces of standard beer (regular)…

Q: A lead ball is added to a graduated cylinder containing 20.3 mL20.3 mL of water, causing the level…

A: The volume of the ball will be the volume of the water displaced.

Q: Saline

A: We will use formula of (w/v)%

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.