a. There are 365 days/year, 24 hours/day, 12 months/year, and 60            minutes/hour. How many minutes are there in one month? b. There are 24 hours/day. 60 minutes/hour, 7 days/week, and 4 weeks/month. How many minutes are there in one month? c. Why are these answers different? Which (if either) is more correct and why?

Q: Often the specific amount of a drug to be administered must be calculated from a given dose in mg…

A: The dosage amount specific for a person is calculated using the given formula:

Q: 4. The density of a proton is approximately 4.0 x 1014 g/cm°. If the mass of the proton is 1.7 x…

A:

Q: O. In chemistry, the particles of matter that we encounter are quite small. The size of atoms were…

A: radius of Chlorine atom = 0.99

Q: A woman is planning on running a 10K (10.0 km) race. a. How many yards will she race? (1 yard = 3…

A: (a)Conversion of kilometers to yards:

Q: The Moon is 3.9 x 105 km from Earth's center and 1.5 x 108 km from the Sun enter. The masses of…

A: Solution - According to the question - Given - The gravitational force due to moon by Earth is…

Q: A brick of a certain metal has area on top of 2.15 cm x 5.24 cm. It has mass 1,036 g. How high is…

A: Given that:  Metal area = 2.15cm×5.24cm  Mass = 1.036g  Density = 2.7g/cm3 Density formula : mass ÷…

Q: 1. In 1992, the first planets outside the Solar System were detected approximately 1300 light- years…

A: 1. As 1 light year =3.725×1017 inches

Q: 38.The density of carbon dioxide is 1.8 kg/m^3. So, the volume occupied by 7.2 kg of carbon dioxide…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: C. Measurements show that 1.0 g of iron (Fe) contains 1.1 x 10 22 Fe atoms. How many Fe atoms are in…

A: Given that: Number of atoms in 1.0 g of Fe = 1.1 x 1022 Fe atoms

Q: In a certain grocery store strawberries cost $5.12 per pound (5.12 dollars/lb) what is the cost per…

A: Cost of 1 pound (1 lb) of strawberries = $ 5.12 What is the cost per ounce

Q: Use the References to access important values if needed for this question. A general chemistry…

A: Mass of metal = 311.2g Volume = 15.9 mL Calculations for density  formula is density = mass / volume…

Q: A cubic box is completely filled with 1,331 g of water. What is the length of one side of the box,…

A: Given : the mass of water = 1331 g We know, The density of water  = 1.0 g/cm3 The formula for…

Q: The density of an object is 0.072 g/mL. Calculate the mass of this object (g) if it displaces 150.0…

A: Given: The density of an object = 0.072 g/mL The volume of water displaced by the object = 150.0 mL…

Q: What is the density (g/mL) of a cube that has equal sides of 12 inches and weighs 491 pounds? The…

A: The density of the cube is 7.87 g/cm3 and the metal here is Fe

Q: The military is helping waste facilities, they are using military holding tanks to gather and hold…

A: Given that rain fall of 1.00 inch in the building with 550 feet long and 450 feet width.We have to…

Q: (285.0 x 10°)- (1.300 x 10')] × 2.8988 Express your answer to the appropriate number of significant…

A: Following are the appropriate answers of the given questions.

Q: Four marbles have the same volume but are made of different metals. The density of each metal is…

A: The heavy or light nature of a substance depends on its density.  As, Density= Mass/ Volume  So , if…

Q: A parsec is an astronomical unit of distance. 1 parsec = 3.26 light years (where 1 light year is the…

A: 1 Parsec equals 3.26 light year Speed of light =  186,000 miles per second or Speed of light  =…

Q: The speed of light is 3 x 108 m/sec Assume: 1.6 km/mile 1.If the earth is close to Mars, we are…

A: Distance = speed x time  Distance travelled by electromagnetic radiation = speed of light…

Q: Is this data precise? Explanation required.

A:

Q: The density of water is 1.00 g/mL. a) What is the mass of a sample of water that has a volume of…

A: :Let's go step by step through the calculations.  1. Figuring out the water's mass:Given: 40.1…

Q: 3. A student is using a 10 mL volumetric pipet to dispense water and wants to test how accurate the…

A: A numerical problem based on uncertainty measurements, which is to be accomplished.

Q: Temperature (°F) 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 High Temperature (°F) at…

A: The objective of this question is to analyze the given temperature data over the years, identify any…

Q: 5-hour energy is a drink that contains approximately 138 mg of caffeine. We also know that 1.00 oz…

A: Answer: In this question we have to find the number of chocolate bars that contains the 138mg…

Q: Convert the $ value of 5 houses to the number of tomatoes found in burgers. Use scientific notation.…

A: Given: Number of houses = 5 Cost of each house = $ 8.5 × 105  Cost of each burger = $ 6.50 And…

Q: Tracy is receiving lanoxin every 8 hours. She weighs 63 kg. The dose range for this drug is 0.030 to…

A: Given weight of Tracy is 63 kg.  Dose range of lanoxin is 0.030 to 0.060 mg/kg every day. The…

Q: Part 3: Calculate density of a metal an unknown metal. 1. Using the pictures below, record the…

A:

Q: 3. The mass of a diamond is usually expressed in carats, where Useful conversion factors

A: Density of a substance is calculated by dividing the given mass with volume of solution in litre.…

Q: Lead has a density of 11.3 g/cm3. What volume would a 1432 g block of lead occupy?

A: Given, density = 11.3 g/cm3. Mass = 1432 gm

Q: An object is moving at a velocity of 11 km/s. Calculate the distance in miles traveled by the object…

A: We have to predict the distance in miles.

Q: A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of…

A: Part(a): Given that the mass of micropicnometer = 2.000 g Mass of micropicnometer + citric acid =…

Q: 76 pound flask of mercury costs $156.50. The density of mercury is 13.534 g/cm^3. 1)Find the price…

A: Given: Mass of flask = 76 pounds Density of mercury = 13.534 g/cm^3

Q: 0.50 m = 1.00 g = 22.4 L= 345 g = 3.001 cg= mm _kg mL _kg mg 2.00 km = 01.00 cm = 5.00 g = 10.0 nm =…

A: Conversion factor is the ratio that provides the relation between distinct units of the same…

Q: 6. A bicycle has a 56 cm frame. What is this frame size equal to in inches? (1.00 in = 2.54 cm. Note…

A:

Q: 2) Calculate the areas of the rectangle and circle in cm2. Report the answers to the correct number…

A: Given : length = 9.90 cm              Width = 3.30 cm              Diameter = 7.50 cm And area of…

Q: 1. Calculate the density of lead (in g/cm3) if a rectangular bar measuring 0.500 cm in height, 1.55…

A: (1) Density is ratio of mass and volume of a Substance. It can be written as - Density = mass/volume…

Q: You are given the masses, in grams (g), and the volumes, in cubic centimeters (cm³), for a series of…

A:

Q: A general chemistry student found a chunk of metal in the basement of a friend's house. To figure…

A:

Q: The boiling point of a liquid is calculated to be 377.44 K. What is this temperature on the Celsius…

A:

Q: How many minutes are in a 30 day month? [Assume exactly 24 hours in a day] 7.20 x 102 4.32 × 104…

A: In this question, we need to calculate the total minutes in 30 day of a month.

Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 10²7 g. Use this information to…

A: 1mole brick = 6.022x1023 bricks   so to find the mass of 1mole brick, we just need to calculate the…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.