A pair of students performs an experiment in which they collect 27 g CaO from the decomposition of 41 g CaCO3. Are these results reasonable? Explain your answer using percentage yield.

  1. 👍 0
  2. 👎 0
  3. 👁 216
  1. 41 g CaCO3 should produce how much CaO?
    %CaO in CaCO3 = (56/100)*100 = 56%.
    So 41 g CaCO3 should produce 41*0.56 = about 23 g CaO. The students collected 27 grams. Does that sound reasonable to you. What would their percent yield be?

    1. 👍 0
    2. 👎 0
  2. what is my percent yiel if i had 1.46 grams of copper to start with and ended with 2. 47 grams of copper?

    1. 👍 0
    2. 👎 0
  3. abue

    1. 👍 0
    2. 👎 0
  4. swagg

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Many metals react with oxygen gas to form the metal oxide. For example calcium reacts: 2Ca(s) + O2(g)--> 2CaO(s) Calculate the mass of calcium prepared from 4,20g of Ca and 2.80g of O2. (a) How many moles of CaO can form from the

  2. Science

    When entering science lab, which of the following should be done by science students? Students should start working on their experiment. Students must talk to their lab partner to see what they need to do next. Students must wait

  3. Chemistry

    A sample of CaCO3 was heated, causing it to form CaO and CO2 gas. Solid CaO remained behind, while the CO2 escaped to the atmosphere. If the CaCO3 weighed 612 g and the CaO weighed 343 g, how many grams of CO2 were formed in the

  4. Biology

    A scientist performs a controlled experiment. This means that A) the experiment is repeated many times to ensure that the results are accurate. B) the experiment proceeds at a slow pace to guarantee that the scientist can

  1. Chemistry

    I'm working on a problem that says: A 4.00 gram sample of a mixture of CaO and BaO is placed in a 1.00 L vessel containing Co2 at a pressure of 730 torr and a temperature of 25C. The CO2 reacts with the CaO and BaO forming CaCO3

  2. science

    A student mixed 1.5g of CaO with 2.5M HNO3. How many moles of CaO were reacted

  3. Chemistry

    CaO(s) + 3C(s) > CaC2(s) + CO(g) deltaHrxn = +464.8 kJ/mol-rxn Is the reaction endothermic or exothermic? What is the enthalpy change if 10.0 g of CaO is allowed to react with an excess of carbon?

  4. Physics

    Students are going to conduct an experiment to study the effect of a net force applied to an object on the object’s motion. In each trial of the experiment, the students will apply a net force on the object. They also need to

  1. chemistry

    Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

  2. Chemistry

    Hi, could someone please take a look at the following question? Use the data given below to construct a Born-Haber cycle to determine the lattice energy of CaO. DH°(kJ) Ca(s) → Ca(g) 193 Ca(g) → Ca⁺(g) + e⁻ 590 Ca⁺(g)

  3. chemistry

    use the data given below to construct a Born-Haber cycle to determine the lattice energy of CaO Ca(s)--->Ca(g) 193 Ca(g)--->Ca+(g) + e- 590 Ca+(g)--->Ca2+(g) +e- 1010 2O(g)---->02(g) -498 O(g) +e--->0-(g) -141 O-(g) + e---->O2-(g)

  4. chemistry

    Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H2O(l) ¨ Ca(OH)2(s) In a particular experiment, a 2.00-g sample of CaO is reacted with excess water and 2.14 g of Ca(OH)2 is

You can view more similar questions or ask a new question.