. How many liters can be contained in a rectangular cube with these dimensions: 1.25 ft x 0.25 ft x 12.00 ft?

Q: A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 2.5 μmol of…

A: Given, Note: 1 µmol = 10-6 mol moles of potassium permanganate (KMnO4) = 2.5 µmol = 2.5 × 10-6 mol…

Q: A 0.181 g piece of solid aluminum reacts with gaseous oxygen from the atmosphere to form solid…

A: The reaction of aluminum with gaseous oxygen can be expressed as,                        4 Al + 3 O2…

Q: Iron has a density of 7.874 g/cm3 at 25 degrees Celcius. How many moles of iron are contianed in a…

A: Density of iron = 7.874 g/cm3Volume of iron block = length x height x width = 0.1 m x 0.24 m x…

Q: 1. Why should solid NaOH be weighed on a watch glass and not on a paper?

A: We know solid NaOH can't be weighed on a paper. We use watch glass for weighing NaOH. Here we will…

Q: 2. How many liters can be contained in a rectangular cube with these dimensions: 2.50 ft x 0.75 ft x…

A:

Q: A bank teller is asked to assemble $1 sets of coins forhis clients. Each set is made up of three…

A: Given that : Set of coins =6 coins that are three quarters, one nickel, and two dimes. Mass of one…

Q: Aqueous hydrobromic Acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: The balanced equation of the reaction is given and the moles of HBr and NaOH are calculated as…

Q: A chemist prepares a solution of iron(III) bromide (FeBr,) by measuring out 79. umol of iron(III)…

A: Molarity of solution is defined as, moles of solute present per liter of solution.

Q: In one box of nails, there are 75 iron nails weighing 0.250 lb. The density of iron is 7.86 g/cm3.…

A: Given that mass of 75 nails of iron = 0.250lb = 113.4g Density of iron = 7.86g/cm3 (a) volume of…

Q: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by…

A:

Q: How many grams of Xe are contained in 454 mL?

A: Density of a substance is given as the mass per unit volume. The density is directly proportional to…

Q: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by…

A: Since, E10 is a mixture of 10% ethanol and 90% gasoline.

Q: What is the percent by mass NaCl of a solution that contains 59.9 grams of NaCl and 87.6 grams of…

A: Solution: Here we have a solution contain 59.9 g NaCl and 87.6 g of water. To calculate: percent by…

Q: During product recovery and washing, sodium carbonate is required to neutralize the acid present.…

A: The reaction between sodium carbonate and Sulfuric acid will be as follows…

Q: What is the percent by mass KBr of a solution that contains 54.5 grams of KBr and 100.8 grams of…

A: The concentration of the solution is defined as the amount of solute present in the solution. In a…

Q: 14K yellow gold is an alloy that contains gold, copper and silver. A 14K gold ring contains 6.90g of…

A:

Q: Solution A has 10% acid and Solution B has 60% acid. How many litres of Solutions A and B should be…

A: Given: The concentration of solution A = 10% acid The concentration of solution B = 60% acid We have…

Q: You wish to prepare 211 grams of 16.6 % Mg(CH3CO0)2. You will need grams of magnesium acetate and mL…

A: Mass of solution is = 211 g Percent concentration of Mg(CH3COO)2 is = 16.6 % Density of water is =…

Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by measuring out 11. umol of nickel(II)…

A: The concentration of a solution is determined by the amount of solute dissolved in the solution. For…

Q: A student working on this lab found the mass of their sample after the first heating to be 30.6057…

A: Given information: Mass of sample at first heating = 30.6057 g Mass of sample after 5 minutes =…

Q: Convert(5.3x10^24) molecules of sodium chloride, NaCl to grams of sodium chloride

A: 6.022*1023 molecules contain 58.5 gm of NaCl 5.3*1024  molecules contain =(5.3*1024/6.022*1023)*58.5…

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: 8. How many chlorine atoms are in 8.4 liters of chlorine gas?

A: Given 8.4 litre gas

Q: 1.33 O 2.66 O 1.66 2.77 Normality of 0.2 gram of CaCl2 (molecular wt=110) in 100 ml of water is--. O…

A: We are given three numbers, we have to find the variance. And in the second question we have to find…

Q: How many mL of paraffin wax would it take to make a candle of this size, with a volume of 11.0 in³ ?

A: Given: Volume = 11.0 in3.

Q: A sample of O2 gas has 7.5x10^24 molecules. How many miles of O2 are contained in it? How much does…

A: 1 mole of O2 gas contains Avogadro’s number of molecules.

Q: Convert 3.25 × 103 terameters (Tm) into nanometers (nm).

A: Given information,    3.25 × 103 terameters

Q: What is the mass in grams of Potassium Chloride present in 23.0 g potassium chloride of 12.50…

A: Here we assume that the mass percent of KCl = 23% or 0.23g we use

Q: 8. A 141 mg sample was placed on a watch glass that has a mass of 9.203 g. What is the mass of the…

A: Given that, mass of sample=141 mg mass of watch glass= 9.203 g then,

Q: If you have7.93 x 1022 molecules of Ne2 gas. How many g do you have ?

A: The number of molecules of Ne2 gas is 7.93×1022. The formula to calculate number of molecules is,

Q: One person consumes 4 liter.of oxygen (CO2) per minute when breathing how Many grams would that be…

A: Given :- volume of O2 consumes in 1 minute = 4 L  To calculate :- mass of O2 consumes in 1 hour

Q: How many mL of liquid mercury with a density of 13.6g/mL must you dispense to have 1.56 x 10-3 mol

A:

Q: Convert 6.95x10^22 molecules of CF4 into grams

A: Given, number of molecules of CF4 =6.95×1022 moleculeswe are asked to calculate the mass of…

Q: You wish to prepare 222 grams of 21.2 % Ca(CH3CO0)2. You will need grams of calcium acetate and mL…

A:

Q: You wish to prepare 202 grams of 11.8 % Ba(OH)2. You will need _____ grams of barium hydroxide and…

A: Given:  Weight of solution = 202 gm  % by mass = 11.8 %  Density of water = 1.00 g/ml

Q: Convert the following measurement. kg 4 5.4 x 10 g mol · L mol · dL

A:

Q: ny g is equivalent to 1500 µg?

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

Q: How many grams of solid NaNO3 came out of solution after cooling? Express your answer in grams to…

A: A). Solubility of NaNO​​​3 at 20°C = 88g/100g H​​​​​​2​​​​O 100g of H​​​​​2 O can dissolve → 88g of…

Q: The EPA limit for lead in bare soil for children’s play areas is 400 ppm by mass. A contractor is…

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: Convert the following measurement. kg 2 4.7 × 10 g mol · L mol · dL

A: Since, 1 kg = 1000 g  kg = kilograms and g = gram  1 g = (1/1000) kg 1 g = 0.001 kg And, 1 L = 10 dL…

Q: 5) A student measures 10.5 mL of diethyl ether using a glass syringe. Given that the density of…

A: The question is based on the concept of physical chemistry. We have to calculate moles of ether…

Q: A 13.0-g sample of X combines with a 34.0-g sample of Y to form the compound X Y 2 . What is the…

A: Law of Conservation of mass: According to the law of conservation of mass, mass can neither be…

Q: 3. Tequila often contains about 40 % alcohol by volume (80 proof) giving it a density of 0.812 g/mL.…

A: Given: Density of solution = 0.812 g/mL. And volume of solution = 5.0 mL>

Q: what is the volume of a single drop of substance if 10 drops is equal to 1.549cm3?

A: Given that the volume of 10 drops of substance is 1.549 cm3. By relating this condition volume of…

Q: The EPA limit for lead in bare soil for children’s play areas is 400 ppm by mass. A contractor is…

A: Parts per million or ppm is term used to express concentration. It is somewhat similar to weight…

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

A:

Q: mixed

A: According to the question, we need to determine what is the volume percent of sodium hydroxide and…

Q: What is the percent by volume of ethanol in water if you use 500ml of ethanol and 900ml of water?

A: Given: Volume of solute (ethanol) = 500 mL Volume of solvent (water) = 900 mL

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.