1- For an element, how does Avogadro’s number connect the atomic and macroscopic scales?
It describes the number of grams in 1 mole of an element.
It describes the number of atoms in 1 gram of an element.
It describes the number of atoms in 1 mole of an element.
It describes the number of moles in 1 gram of an element.
2- The atomic mass of the element platinum (Pt) is 195.08 amu. How many atoms of platinum are in 195.08 grams?
6.022×1023 atoms
1.175×1026 atoms
1.951×1025 atoms
3.087×1021 atoms
3- The atomic mass of copper (Cu) is 63.546 amu, the atomic mass of sulfur (S) is 32.065, and the atomic mass of oxygen (O) is 15.999 amu. Which molar mass is correct for copper sulfate (CuSO4)?
159.607 g/mol
225.802 g/mol
111.610 g/mol
446.440 g/mol
Answers: 2
Chemistry, 22.06.2019 10:50
Someone offer some answers to this, i will give 98 coins and mark as brainliest! i will put the rest of the lab down in the comments,solutions pre-lab questions: in this lab, you will make fruit drinks with powdered drink mix. complete the pre-lab questions to get the values you need for your drink solutions. calculate the molar mass of powered fruit drink mix, made from sucrose (c12h22o11).using stoichiometry, determine the mass of powdered drink mix needed to make a 1.0 m solution of 100 ml. (hint: use molarity = to find the moles of drink mix, then convert moles to grams using a mole conversion.)what mass of powdered drink mix is needed to make a 0.5 m solution of 100 ml?
Answers: 1
Chemistry, 22.06.2019 23:30
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Answers: 1
Chemistry, 23.06.2019 00:50
The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as
Answers: 3
Chemistry, 23.06.2019 07:30
Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __
Answers: 2
1- For an element, how does Avogadro’s number connect the atomic and macroscopic scales?
It descri...
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