The molecular weight of vitamin C, CH06, is

176.12 8

mol

What is the mass, in grams, of 0.000142 mol of

vitamin C?

Express the answer using 3 significant figures.

09

Calculate the reduced mass of a nitrogen molecule in which both nitrogen atoms have an atomic mass of 14.00. Do the same for a hydrogen chloride molecule in which the chlorine atom has an atomic mass of34.97. Hydrogen has an atomic mass of 1.008.

Balance the equation to show the reaction between H2SO4 and cu (OH) 2

What happens to He avarage kinetic energy of the bromine particles A. It decreases rapidly B. It increases quickly C. It remains the same D. It decreases slowly

Suppose you know the number of protons in an atom. What other information would you need in order to determine the mass of the atom? Explain your reasoning.

How many hydrogen atoms in the following chemical formula? NH4OH

How many grams are there in 5.00 moles of lead Pb?

A large body in space that orbits a star and does not produce light of its own

Which type of substance is an electron-pair acceptor? O Lewis base O Brønsted-Lowry acid O Brønsted-Lowry base O Lewis acid

Which one of these salts will form a basic solution upon dissolving in water? cr (no3) 3 libr nai nh4no3 naf?

What is 1.724 L expressed in cm3?