Inorganic Chemistry Answers

What is the boiling point temperature of a solution of 0.66moles of Mg(OH)2 in 1,000 grams of water? [1mole of total ions increases the boiling point temperature of 1 kilogram of water by 0.51°C.](Show calculations) = ______ °C

A student is testing two substances, A and B. The result of the test is that the blue litmus paper remains blue when dipped in a mixture of the two. A and B are likely to be
a.
Be2O3 and H2SO4
b.
BeO and HCl
c.
CO2 and H2O
d.
LiOH and H2O

Estimate the volume of methane gas needed to bring the water in a 1l kettle to the boil, considering it takes about 4.18 kj to increase the temperature of 1 l of water by 1 degree celsius and that 1 mol of gas takes a volume of about 24 l at ambient temperature and pressure.

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Right, so I know CH4 is 16.04 g/mol, and water boils at 100 degrees celsius. But Im not sure how to go about working this problem or what type of problem it is?

I imagine the 4.12 kj would be multiplied by 100 to get it to be the amount needed to heat water to boil- but then I don't understand the ambient temperature and pressure.

I know ambient temperature is 25 degrees celsius, so that makes me think that I would have to multiply 25 by 4.18 and subtract it from 418- Like this:

100 (4.18) - 25(4.18) = 313.5 kj/mol needed to get it to a boiling temperature.

but I don't understand the rest, and I'm not sure if I understand the problem at all.

based on Na, Cu, Fe, W, which compound will have the highest melting pot?

Magnesium reacts directly with nitrogen gas to form Magnesium Nitride. In an experiment conducted, it was found that 0.36g of magnesium produced 0.50 magnesium nitride.
(a)How many moles of nitrogen combined with 0.36g of Magnesium.
(b)What is the ratio of nitrogen atoms to magnesium atoms in magnesium nitride.
(c)What is the empirical formula of magnesium nitride?

(A saturated solution of calcium hydroxide was titraed with 0.005 M solution and it took 13.50 acid to reach neutralization point a) Caluclate the number of moles of acid used ) How may moles of hydroxide was neutralized ? c) What is the molar solubility in molarityof Calcium hidroxide ? ) Calculate the Ksp value calcium hydroxide

How an increase in the total pressure of the system (PT) would affect the molar volume of CO2

Can you determine the atomic weights of zinc or copper by the methods used in this experiment? How? What the additional information necessary to do this?