310 Answered Questions for the topic stoichiometry

Stoichiometry Chemistry

03/03/21

I do not understand stoichiometry

In the balanced chemical equation below, how many moles of copper(II) carbonate are made from the reaction of 42 grams of copper(II) sulfate and excess silver carbonate? CuSO4 + Ag2CO3 -->... more
Stoichiometry

03/02/21

Given the reaction: C3H8 + 5 O2 → 3 CO2 + 4 H2O

What is the total number of moles of O2 required to produce 1.5 moles of CO2? A) 5.0 B) 2.5 C) 3.0 D) 1.5
Stoichiometry Science Chemistry Chem

03/01/21

In a lab, nitrogen trichloride is synthesized from its elements. This reaction has a 60.0% yield...

In a lab, nitrogen trichloride is synthesized from its elements. This reaction has a 60.0% yield. A chemist wants to prepare 50.0g of nitrogen trichloride, with a 60.0% yield, what mass of nitrogen... more
Stoichiometry Chemistry

03/01/21

Stoichiometry helpppp

How many moles of calcium are in 3.24x1023 atoms of calcium? Round to 2 decimal places for your answer.  __ mol Ca?What mass of lead is 0.294 mol of lead? Round to 2 decimal places for your... more
Stoichiometry Chemistry

02/24/21

How many grams of Ca are needed to make 3.00 moles of Ca3P2?

Stoichiometry

02/18/21

Stoichiometry Question

Given the following equation: Na2O + H2O ---> 2 NaOH, how many grams of H2Oare in 34.2 grams of NaOH?
Stoichiometry Chemistry

02/12/21

mole ratios in stoichiometry

in the reaction 2CO2 +2h2O=C2H4+3O2 the mole ratio of water to oxygen is____.
Stoichiometry Chemistry

02/12/21

how many grams of barium chloride are needed to produce 4.35 grams of Ba?

__Cu+__BaCl2 = __Ba+__CuCl3
Stoichiometry Chemistry

01/27/21

Oxygen was discovered by Joseph Priestley in 1774 when he heated mercury (II) oxide to decompose it to form its constituent elements.

a. How many moles of mercury (II) oxide, HgO, are needed to produce125 g of oxygen, O2?b. How many moles of mercury are produced?
Stoichiometry Chemistry

01/25/21

How many grams of Si3N4 can be produced from 0.46 moles of N2?

3 Si + 2 N2 → Si3N4

01/25/21

Please help with Chemistry Question!

Consider the reaction of hydrogen and oxygen producing water. If 26.1 g of water is produced and 23.0 g of oxygen is used how many grams of hydrogen are needed?
Stoichiometry Chemistry

01/15/21

Zn+2HCL=ZnCL2+H2

What is the total mass of ZnCL2 produced when 195 g of Zn react completely with 216 g of HCL to produce 6g of H2?i got 51 g but i don’t think it’s right, how do i do this
Stoichiometry Chemistry

01/15/21

2Al + 3Cl2 --> 2AlCl3 If 12.8 g of aluminum reacts with 39.1g of chlorine, how many g of AlCl3 forms? Also what is the limiting reactant(name only, not mass)

I dont understand the limiting reactant part on the homework
Stoichiometry Chemistry

01/15/21

2 Mg + O2 --> 2 MgO If 6.9 g of Mg react with 450 g of O2 what mass of product forms?

Im wondering how I should do this

01/08/21

so I need help with stoichiometry#2 is the lesson we are on if anyone could please explain. the problem is down below

Sodium tetraborate is produced according to the following reaction:4H3BO3 + 2NaOH → 7H2O + Na2B4O7How many grams boric acid are needed to make 150 tons of sodium tetraborate? (Remember that 454 g =... more
Stoichiometry Chemistry Moles

01/07/21

how many liters of H2 gas are needed to form 35.5 grams of NH3?

Given N2+3H3=2NH3 , how many liters of H2 gas are needed to form 35.5 grams of NH3?
Stoichiometry Chemistry

12/18/20

Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 —> 2 NH3. If 4.0 moles of H2 with 2.0 moles of N2 are reacted, which would be the limiting reactant?

Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 —> 2 NH3. If 4.0 moles of H2 with 2.0 moles of N2 are reacted, which would be the limiting reactant?

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