A chemist weighed out 101. g of aluminum. Calculate the number of moles of aluminum she weighed out. Round your answer to 3 significant digits.

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

A: Answer

Q: Ammonia (NH,) chemically reacts with oxygen gas (0,) to produce nitric oxide (NO) and water (H,O).…

A: Solution The mole idea may be a convenient methodology of expressing the number of a substance. Any…

Q: Calculate the number of hydrogen atoms in a 150.0 g sample of camphor (C10H160). Be sure your answer…

A:

Q: Calculate the mass of NH3 (in grams) in 5.6x10^24 hydrogen atoms. Give your answer in decimal places…

A:

Q: Ammonia (NH,) chemically reacts with oxygen gas (0,) to produce nitric oxide (NO) and water (H,O).…

A: Ammonia reacts with oxygen to form nitric oxide and water. The equation for the balanced chemical…

Q: Lithium is the least dense metallic element. Its density is 0.534 g/mL. What is the mass of lithium…

A: Given : Density = 0.534 g/mL Volume = 1.00 in3 Convert in3 into mL as follows. 1 in3 = 16.3871 mL

Q: A chemist determined by measurements that 0.0600 moles of gold participated in a chemical reaction.…

A: • The values provided in the question are:-      i) Number of moles of gold participated in a…

Q: A balloon has a volume of 19.3 and 12.1 moles. The amount of moles decreases to 8.63. What is the…

A:

Q: An oxygen atom has a mass of 2.66×10 -23 g and a glass of water has a mass of 0.050 kg. Use this…

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: The mass of earth is 5.98 ×10²⁴ kg. What is the mass expressed in tera-grams?

A: Given that : Mass of earth = 5.98 ×10²⁴ kg

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

A: We know that, 1 nm= 10-9 m then,

Q: What is the difference between an exact number and an inexact number? Give an example of each type…

A: The arithmetic numbers can be categorized into two categories: exact and inexact numbers. These…

Q: A chemist determined by measurements that 0.050 moles of iron participated in a chemical reaction.…

A:

Q: How many grams F in 650.1 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A: Here we calculate the molar mass of Br2F6. Then calculate the mass of F.

Q: A chemistry student needs 40.0mL of pentane for an experiment. By consulting the CRC Handbook of…

A: Given,Density = 0.626 g/cm3,Volume = 40.0 ml.

Q: A chemist adds 250.0 mL of a 0.00378 mM calcium sulfate (Caso,) solution to a reaction flask.…

A: molarity = 0.00378 mM = 3.78×10-6 M volume = 250.0 ml moles = molarity x volume / 1000            =…

Q: Calculate the mass of forsterite (Mg, SiO,) that contains a million (1.000 x 10°) magnesium atoms.…

A:

Q: Gaseous methane CH4 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2…

A: First, the given reactants mass are converted to moles which then used to determine the limiting…

Q: A chemist determined by measurements that 0.0250 moles of aluminum participated in a chemical…

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

Q: A chemist measures the amount of fluorine gas produced during an experiment. He finds that 72.4 g of…

A:

Q: A chemist measures the amount of bromine liquid produced during an experiment. He finds that 92.4 g…

A: The amount of bromine liquid produced in the experiment = 92.4 g The molar mass of  Br2 = 159.808…

Q: Calculate the mass of hydrazine (N,H) that contains a billion (1.0 x 10) nitrogen atoms. Be sure…

A: We are given,N2H4 So 1 mol of N2H4 contains 2 mol of Nitrogen.  Molecular weight of N2H4=32 g/mol

Q: A chemist measures the amount of hydrogen gas produced during an experiment. She finds that 90.8 g…

A: Given :- mass of H2 gas = 90.8 g  To be calculated :- no. of moles of H2

Q: How many grams F in 650.1 g Br2F6? Put the answer in the box in regular (non-scientilic) notation.…

A:

Q: How do you fint the volume of an element, given the density and mass.  For example, "Determine the…

A: The volume of an element can be calculated from the given below formula if its density and mass are…

Q: A chemistry student needs 10.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A: Given that: weight of tetrahydrofuran = 10 g density of tetrahydrofuran = 0.889 g. cm-3

Q: A chemist measures the amount of chlorine gas produced during an experiment. She finds that 1.35 g…

A: According to mole concept, one mole of a substance = One gram molecule = GMW = N molecules Further,…

Q: Ammonia (NH;) chemically reacts with oxygen gas (0,) to produce nitric oxide (NO) and water (H,0).…

A: Mass of ammonia = 2.9 g  Mass of nitric oxide = ?

Q: A chemist adds 875.0 mL of a 12.8 g/dL sodium chloride (NaCI) solution to a flask. Calculate the…

A: Given :-  Volume of NaCl solution = 875.0 mL  Density of solution = 12.8 g/dL  To calculate :-…

Q: Ammonia (NH,) chemically reacts with oxygen gas (O2) to produce nitric 8Xlde What mass of ammonia is…

A:

Q: A chemist must dilute 52.5 mL of 323. mM aqueous silver perchlorate (AgCio,) solution until the…

A: Molarity is calculated in terms of moles per litre. It basically tells the amount of moles present…

Q: How many grams of calcium nitrate contain 4.50 g of oxygen? Write your answer on the blank with the…

A: Using molar mass of calcium nitrate and oxygen in calcium nitrate we can solve this problem.

Q: A chemist weighed out 101. g of calcium. Calculate the number of moles of calcium she weighed out.…

A: As the question asks to find out the no of moles ,so let me first define mole :- It is equal to the…

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

A: Given: The volume of atom = 7.8 x 10-31 m3  This value of volume has to be converted into cubic…

Q: An iron atom has a mass of 9.27 x 10 -23 g and a cooking pot has a mass of 0.500 kg. Use this…

A: mass of an iron atom is 9.27×10-23gagain 1 mole of iron atom = 6.022×1023 atoms of iron

Q: How many grams Fin 650.1 g BrF? Put the answer in the box in regular (non-scientific) notation. Use…

A: Given: Mass of Br2F6 = 650.1 g  and we know that the molar mass of Br2F6 is 273.7984 g/mol

Q: How many grams F in 511.9 g Br2F6?    Put the answer in the box in regular (non-scientific)…

A: Given: Mass of Br2F6 is 511.9 g and we know that the molar mass of Br2F6 is 273.7984 g/mol

Q: Find the molecular mass of Mn2(CO)10 with the correct number of significant figures.

A: Molecular mass is obtained by the sum of the atomic masses of the elements present in the molecule.…

Q: A chemist adds 1.25 L of a 0.0023 mM calcium sulfate (CaSO) solution to a reaction flask. Calculate…

A:

Q: A chemist measures the amount of nitrogen gas produced during an experiment. He finds that 2.78 g of…

A:

Q: How many grams Fin 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A:

Q: An iron atom has a mass of 9.27 x 10 g and a cooking pot has a mass of 0.500 kg. Use this…

A: Mole is a measuring unit in chemistry. 1 mole has 6.023 x 1023 atoms. 6.023 x  1023 is the Avogadro…

Q: A chemist adds 750.0 mL of a 207. g/dL silver perchlorate (Agcio,) solution to a flask. Calculate…

A: Given : concentration of AgClO4 = 207 g/dL And volume of solution added = 750 mL

Q: A chemist measures the amount of nitrogen gas produced during an experiment. She finds that 42.1 g…

A: Given information,             Mass of nitrogen gas is 42.1 g

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

A: 1 m = 109 nm 1 m3 = (109)3 nm3 = 1027 nm3

Q: 10 kg. A penny has a mass of 2.50 g and the Moon has a mass of 7.35 x 122 Use this information to…

A:

Q: density of water initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203…

A: In question Following informations given -   Initial mass of erlenmeyer flask = 123.221 g Final mass…

Q: ou've just solved a problem and the answer is the mass of an electron,…

A: Given that the mass of an electron is, M = 9.11×10-31 kilograms To write the above value in three…

Q: An iron atom has a mass of 9.27 × 10 -23 g and a cooking pot has a mass of 0.500 kg. Use this…

A: We are given mass of one atom, we have to find mass of 1 mole, and how many moles has mass same that…

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.