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3 years ago

If you have 8.56 g of H2, how many grams of NH3 can be produced?

1 answer:

4 0

N2 + 3H2 → 2 NH3 from bal. rxn., 2 moles of NH3 are formed per 3 moles of H2, 2:3 moleH2: 3.64 g/ 2 g/mole H2= 1.82 1.82 moles H2 x 2/3 x 17

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NH4 oxidation number

Lubov Fominskaja [6]

The answer is +1! Have a great day!

6 0

3 years ago

What mass of calcium carbonate is produced when 250 mL of 6.0 M sodium carbonate is added to 750 mL of 1.0 M calcium fluoride

Savatey [412]

Given:

Volume of Na2CO3 = 250 ml = 0.250 L

Molarity of Na2CO3 = 6.0 M

Volume of CaF2 = 750 ml = 0.750 L

Molarity of CaF2 = 1.0 M

To determine:

The mass of CaCO3 produced

Explanation:

Na2CO3 + CaF2 → CaCO3 + 2NaF

Based on the reaction stoichiometry:

1 mole of Na2CO3 reacts with 1 moles of Caf2 to produce 1 mole of caco3

Moles of Na2CO3 present = V * M = 0.250 L * 6.0 moles/L = 1.5 moles

Moles of CaF2 present = V* M = 0.750 * 1 = 0.750 moles

CaF2 is the limiting reagent

Thus, # moles of CaCO3 produced = 0.750 moles

Molar mass of CaCO3 = 100 g/mol

Mass of CaCO3 produced = 0.750 moles * 100 g/mol = 75 g

Ans: Mass of CaCO3 produced = 75 g

7 0

3 years ago

1. An acetic acid solution that is 60.0% HC2H302 (by mass) contains

d1i1m1o1n [39]

Answer:

A solution of acetic acid that is 60.0% HC₂H₃O₂ (by mass) indicates that it contains 60.0 g of acetic acid and 100.0 g of water.

Explanation:

A percentage is a way of expressing an amount as a fraction of 100. The mass percentage corresponds to physical units of the solutions and they allow to establish more precisely the concentration of the solutions and express them in terms of percentages.

Mass percentage indicates the amount in grams of solute per 100 grams of solution.

So a solution of acetic acid that is 60.0% HC₂H₃O₂ (by mass) indicates that it contains 60.0 g of acetic acid and 100.0 g of water.

7 0

3 years ago

Usain Bolt went from 0.0 to 11.0m/s in 3.4s. What was his acceleration?

motikmotik

Answer:

Answer: Change in speed = 11 m/sTime taken = 3.4sHence, acceleration = (11/3.4) m/s² = 3.235 m/s²

Explanation:

(winks and runs off)

7 0

2 years ago

Why do plants provide animals with fruit such as strawberries, apples, and mangoes

Bad White [126]

Answer:

to increase their number of species on the Earth and want to go long and long

3 0

2 years ago