Part A: How many atoms of hydrogen does it contain?         Express your answer using four significant figures.   Part B: How many molecules of glucose does it contain?         Express your answer using four significant figures.   Part C: How many moles of glucose does it contain?         Express your answer using four significant figures.   Part D: What is the mass of this sample in grams?         Express your answer using four significant figures.

Q: A chemist measures the amount of nitrogen gas produced during an experiment. She finds that 852. g…

A: Mole: It is defined as the ratio of the mass of the given compound to the molar mass of that…

Q: How much water, in mL, needs to be added to 29.7 mL of 11.2 M HNO3 to make a 6.05 M solution with…

A: Given values,  V1 = 29.7mL N1=11.2M N2=6.05M And V2=?

Q: The radius of an atom of gold (Au) is about 1.35 Å. Part A: Express this distance in nanometers…

A: Radius of

Q: A chemist prepares a solution of aluminum chloride AlCl3 by measuring out 4.42g of aluminum chloride…

A: Interpretation -  To determine the  concentration ( in mole/L ) of the chemist's aluminum chloride…

Q: Ocean water contains 3.3 %% NaClNaCl by mass. What mass of ocean water in grams contains 43.8 gg of…

A: Mass percent of NaCl = 3.3 %

Q: The composition of a mixture of potassium chlorate and potassium chloride is to be determined. A…

A: The objective of this question is to determine the percent by mass of potassium chlorate in a…

Q: Solution 1 is diluted by combining 6 mL of Solution 1 with 64 mL of Solution 2. What is the dilution…

A: The process of decreasing the concentration of a solution by adding excess solvent while keeping the…

Q: How many kcal/mol are in 206.16 kJ/mol? Do not put units in your answer. Do use proper significant…

A: Kcal/mol to KJ/ mol  1kcal/mol= 4.184 kilojoules   In SI units one kilocalorie per mole is…

Q: The composition of a mixture of potassium chlorate and potassium chloride is to be determined. A…

A: According to the chemical reaction, shown below, 3 mol of oxygen gas is produced by decomposition of…

Q: You add 297 grams of NaCl to a container and then you add 898 grams of water to that same container.…

A:

Q: The composition of a mixture of potassium chlorate and potassium chloride is to be determined. A 9.5…

A:

Q: A certain compound has a molar mass of 323.4 g/mole  .  Determine the number of grams in 2.73 x 10-2…

A:

Q: A chemist weighed out 7.64 g of tungsten. Calculate the number of moles of tungsten she weighed out.…

A:

Q: The chemical formula for cesium chloride is CsCl. A chemist measured the amount of cesium…

A: Given mass of cesium chloride is 1.47 g.  Molar mass of cesium is 132.91 g/mol and molar mass of…

Q: O Chemical Reactions Calculating molarity using solute mass D0/5 Bi- A chemist prepares a solution…

A: Step 1: Step 2: Step 3: Step 4:

Q: A 25.0 mL aqueous stock solution of 3.7 M NaF is diluted to a final concentration of 1.8 M. What is…

A:

Q: How many atoms are contained in 4.1 g of carbon? How can you round this answer to 2 significant…

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of carbon atoms weigh 12 g.

Q: A chemist weighed out 80.3 g of beryllium. Calculate the number of moles of beryllium she weighed…

A:

Q: What is the mass of NaBr in the mixture? Express your answer using two significant figures. A…

A: Total mass .of Cl and Br is equal to 2.08-0.76=1.32g.

Q: sample of 0.215 M Co(NO3)2 contains 1.12 x 1022 nitrate ions. The volume of the sample is _______…

A:

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

A: Number of moles is defined as given mass divided by molecular mass.

Q: A chemist weighed out 22.5 g of calcium. Calculate the number of moles of calcium she weighed out.…

A: In the realm of chemistry, precise measurements and calculations are fundamental to understanding…

Q: A chemist measures the amount of nitrogen gas produced during an experiment. She finds that 51.1 g…

A:

Q: What is the molarity (moles/L) when 16.6 mL of 8.26 M NaNO3 is diluted by adding 31.8 mL of water?

A: For Original NaNO3 solution, Molarity, M1 = 8.26 M Volume, V1 = 16.6 mL   For Diluted NaNO3…

Q: How many C atoms are present in the sample of C3H8 with mass 7.11 g? Avogadro's number is 6.022 x…

A: Given : Mass of C3H8 = 7.11 g

Q: What proportion of the mass of glucose is accounted for by oxygen either as a proportion or a…

A: The molecular formula of glucose is C6H12O6,which means it consists of 6 carbon (C) atoms, 12…

Q: The composition of a mixture of potassium chlorate and potassium chloride is to be determined. A 9.5…

A: The reaction for the decomposition of KClO3 is shown below:

Q: A chemist determined by measurements that 0.010 moles of gallium participated in a chemical…

A: Since mass = moles X Atomic mass And since Atomic mass of Gallium = 69.7 g/mol

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A: given,               The mass of weigh boat = 3.451 g.             Mass of weigh boat and sample =…

Q: A chemist measures the amount of hydrogen gas produced during an experiment. He finds that 21.0 g of…

A:

Q: During the experiment, a student calculated the mass of chlorine in the compound to be 1.153 g. How…

A:

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: O MEASUREMENT Adding or subtracting and multiplying or dividing measurements A chemistry student…

A: Given: Mass of graduated cylinder = 1.5 g Mass of ( graduated cylinder + NaOH )…

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A:

Q: ium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the…

A: Mass of empty cylinder = 4.200 g Mass of KCl + cylinder = 71.0 g So, Mass of KCl = 71.0 - 4.20     =…

Q: A 195 mL sample of ocean water contains 7.0 gg of NaCl. What is the molarity of the solution with…

A: Given,  Mass of NaCl in ocean water= 7.0g Volume of ocean water = 195 mL Molarity of NaCl solution…

Q: The chemical formula for cesium chloride is CsCl . A chemist measured the amount of cesium…

A: Molar mass of cscl = 168.36 g/mol  Moles = given mass / molar Mass

Q: The chemical formula for hydrogen bromide is HBr. A chemist measured the amount of hydrogen bromide…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…