Chemistry » Page 58

Chemistry

Raphael

What volume will 0.710 moles of nitrogen gas occupy at STP?

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Chemistry

Elliana Mcclain

4) Acompound has an empirical formula of Na2co3, and a molar mass of 3.18g/mol. Find its

molecular formula.

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Chemistry

Myles Leonard

How many molecules of glucose, C6H12O6, can be "burned" biologically when 283.2 grams of oxygen is a available?

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Chemistry

Diana Hebert

Why does acids that has been accidentally spilled on a book cause the colour of the book cover and the ink to change?

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Chemistry

Kujo

How many moles of H2O will be required to make 19.2 moles of O2

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Chemistry

Mendez

Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C. Assume the specific heat capacity of cyclohexane under these conditions is 1.85·J·g^-1K^-1. Be sure your answer has the correct number of significant digits.

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Chemistry

Gavyn Brewer

Is nitrogen flammable? If so i want to build a patao gun using it as my fuel

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Chemistry

Beetle

What's the chemical formula for iron (ii) nitride

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Chemistry

Valery Lane

Ammonia (NH3) is one of the most common chemicals produced in the united states. it is used to make fertilizer and other products. Ammonia is produced by the following chemical reaction. N2 (g) + 3h2 (g) = 2nh3 (g) If you have 1.00 x 10^3g of N2

a. If you have 1.00 x 10'g of N2 and 2.50 x 10' of H2, which is the limiting reactant in the reaction?

b. How many grams of ammonia can be produced from the amount of limiting reactant available?

c. Calculate the mass of excess reactant that remains after the reaction is complete.

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Chemistry

Brycen Lynn

How many grams of O2 are in 5.0 moles of the oxygen gas?

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Chemistry

Guest

How many of the following compounds are soluble in water? Cu (OH) 2

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Chemistry

Cedric Mccall

Mg is a member of which family? a) noble gases b) halogensc) alkaline earth metals d) alkali metalse) none of the above

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Chemistry

Belen Buchanan

How does an atom differ from a molecule?

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Chemistry

Krista Macdonald

Which of the following statements is true? a. Ag (s) reacts spontaneously with 1 M H + (aq). b. Ag (s) reacts spontaneously with Ni2+. c. Ag (s) reacts spontaneously with 1 M NO3 - in 1 M H + (aq). d. Ni2 + reacts spontaneously with 1 M H + (aq) to form H2. e. Ni2 + reacts spontaneously with H2 (g).

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Chemistry

Genesis Frost

A 2.950Ã-10âˆ'2 M solution of glycerol (C3H8O3) in water is at 20.0âˆ˜C. The sample was created by dissolving a sample of C3H8O3 in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 998.7 mL. The density of water at 20.0âˆ˜C is 0.9982 g/mL. Calculate:

a. molality

b. mole fraction of glycerol in this solution

c. the concentration of the glycerol solution in percent by mass

d. the concentration of the glycerol solution in parts per million

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