Chemistry, 25.03.2021 02:30, jello2612

Find the number of atoms in 3.25 moles of gold Determine the moles if given 20.3g of beryllium.

Find the number of atoms given 82.4g of silicon.

Determine the molar mass of formic acid (CH2O2). Round to two decimal places.

What is the mass in grams of 1.22 moles of lead (II) nitrate ? (Pb(NO3)2 molar mass = 331.22g/mol)

Find the number of stars given 0.134 squares.

2.5 rectangles = 5 triangles
6 rectangles = 3 squares
8 triangles=12 stars

Any help is appreciated:)

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 18:10, hunterthompson2

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

Answers: 2

continue

Chemistry, 22.06.2019 03:50, daniel9299

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Answers: 3

continue

Chemistry, 22.06.2019 06:00, drma1084

Compare and contrast physical changes with chemical changes.

Answers: 1

continue

Chemistry, 22.06.2019 07:30, eburnhisel2023

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

Answers: 1

continue

Do you know the correct answer?

Find the number of atoms in 3.25 moles of gold Determine the moles if given 20.3g of beryllium.