nurse measures the volume of a drop of medicine. The volume of 1 drop of medicine is 0.87mL. What is the volume in deciliters of 1000drops of medicine? Write your answer as a decimal.

Q: A student is determining the density of an unknown metal with a mass of 256.0 g. The student…

A: First, the volume of unknown metal is determined as follows,

Q: What is the volume in liters of 5.687 pounds of gold? The density of the gold is 19.3 pounds.…

A: Given mass of gold = 5.687 pound density of gold = 19.3 g/cm3

Q: A chemistry student needs 85.0 mL of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given, The volume of dimethyl sulfoxide = 85.0 mL The density of dimethyl sulfoxide = 1.10 g.cm-3 We…

Q: A chemist needs to know the mass of a sample of Na, SO, to 4 significant digits. She puts the sample…

A: The significant figures (also known as the significant digits or precision) of a number written in…

Q: A chemist makes 340. mL of iron(II) bromide (FeBr₂) working solution by adding distilled water to…

A:

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: Significant Figure Rule:When multiplying or dividing numbers, the result has the same number of…

Q: The volume of a gas was measured to be 32.74 liters. If the density is 1.19 g/L, what is the mass of…

A: Denisty Formula density = mass of a gas/volume of the gas Given values  Mass of the gas =?  Volume…

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: A pharmacy technician measures the mass of a pill. The mass of one pill is  208   mg . What is the…

A:

Q: An atom of a particular element has a volume of 7.8 x 10-31 m3. What is this volume in cubic…

A: An atom is always neutral because of the equal number of electrons and protons. Electrons are…

Q: A student is determining the density of unknown metal with a mass of 627.0 g. The student partially…

A:

Q: A meteor has a volume of 9235 ft3 , what is the mass in kg of the meteor if the density is 0.92…

A:

Q: A chemist makes 830. mL of silver nitrate (AgNO3) working solution by adding distilled water to 230.…

A: To find out the new concentration, use the dilution law and calculate the new concentration of…

Q: a student uses a graduated cylinder to determine the volume of water dispensed from a 50.00 ml…

A: To find percentage difference between two values, calculate difference between two values and divide…

Q: you measure the initial volume of water in a graduated cylinder to be 23.5 mL and the final volume…

A: According to the question, The initial volume of water in the cylinder = 23.5 ml The final volume…

Q: hardware salesman measures the mass of a box containing  1000  washers.  The mass is  0.7222   kg…

A: We know from the unit conversion in chemistry, to measure small amount we generally used mg,…

Q: 22 A penny has a mass of 2.50 g and the Moon has a mass of 7.35 × 10²² kg. Use this information to…

A:

Q: A chemist must dilute 70.4 mL of 9.54 mM aqueous calcium sulfate (CaSO4) solution until the…

A:

Q: A hardware salesman measures the mass of a box containing 1000 washers. The mass is 1.5924 kg. What…

A: We know that - 1 Kg = 1000 g 1 g   = 1000 mg

Q: In the lab, a student measures a teaspoon of an unknown liquid. The teaspoon of liquid has a mass of…

A:

Q: A chemistry student needs 90.0 g of carbon tetrachloride for an experiment. By consulting the CRC…

A:

Q: A student is determining the density of an unknown metal with a mass of 232.0 g. The student…

A: Given, the mass of unknown metal = 232.0 g Now calculate the volume of unknown metal is determined…

Q: A chemist has a block of copper metal (density is 8.96 g/mL). The block weighs 2.30 g. What is the…

A: The volume of the copper block is determined as follows. VCu=mCudCu

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: We have to multiply or divide…

Q: Sulfuric acid solution is the electrolyte used in car batteries. Sulfuric acid is sold as a…

A: we have to calculate the volume of concentrated sulfuric acid solution

Q: A marine biologist measures the volume of a seawater sample. The volume is 1285mL . What is the…

A: Given volume is, 1285mL

Q: You put 84 mg/mL solution into a total volume of 177 mL. What is the concentration of the diluted…

A: Initial concentration= 84 mg/ml  Total volume= 177 ml

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: Addition and subtraction:Here, in this case we round the answer to the same number of decimal places…

Q: Liquid mercury has a density of 13.6 g/cm . Calculate the volume (in mL) of 0.882 oz. of liquid…

A: Volume = Mass/density 1 oz = 28.3495 g 1 cm3 = 1 mL Given that: Density of Hg = 13.6 g/cm3 = 13.6…

Q: A brick of metal has these dimensions:  4.45 in  x 4.08 in x 7.23 in.  It has mass 16.1 kg.  What is…

A: Given: Dimensions of brick = 4.45 in × 4.08 in × 7.23 in And mass of brick = 16.1 Kg = 16100 g…

Q: A chemistry student needs 90.0 mL of carbon tetrachloride for an experiment. By consulting the CRC…

A: Given, Note: 1 mL = 1 cm3 Volume of Carbon tetrachloride = 90.0 mL = 90.0 cm3 Density of Carbon…

Q: A pharmacy technician measures the mass of a pill. The mass of one pill is 960 mg. What is the mass…

A: According to the question, The mass of the 1 pill = 960 mg The number of pills = 100 Find- The mass…

Q: Convert the number 0.000127 to scientific notation, then enter the answer using a power of 10.

A: To convert the given number in scientific notation  Given number : 0.000127

Q: The label on a soft drink bottle gives the volume in two units: 2.0 L and 67.6 fl oz. Use this…

A: Volume of a liquid can be expressed in more than one units, such as L, cm3, dm3 etc. in which the…

Q: What is the density of this object?

A: Density is the ratio of mass to volume.  density = mass/volume

Q: You weigh a graduated cylinder to be 58.248 grams when it is empty. You then add some unknown liquid…

A: Density (d) :-  The ratio of mass of a substance to its volume is called density. Density(d) = mass…

Q: To reduce dangerous swelling in the brain, physicians sometimes administer intravenous hypertonic…

A: Given volume of solution is 175 ml

Q: You are using a Pasteur pipet and want to determine the volume of liquid dispensed in a drop. You…

A: From the given figure we can see that the volume of liquid present in the cylinder is approx 1 mL…

Q: A marine biologist measures the volume of a seawater sample. The volume is 1211 mL. What is the…

A: We know, 1 Liter(L) = 1000 milliliters(mL)

Q: Calculate the mass of 15.5 L of a substance whose density is 1.1 g/mL. Express your answer in grams…

A: Density is defined as the mass of substance divided by the volume of substance.

Q: An astronomer measures the distance from Earth to a newly-discovered asteroid. The distance is 2.38…

A: • The values provided in the question are:-    i) Distance between earth and newly discovered…

Q: An optician measures the diameter of her patient's pupil. The diameter is 0.0016m . What is the…

A: Change 0.0016 m to millimeter ?

Q: A chemist must dilute 73.3 mL of 108. pM aqueous silver(II) oxide (AgO) solution until the…

A:

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.