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What volume (in mL) of 0.50 M potassium nitrate contains 0.021 mol of potassium nitrate?
M=mol/volume Volume=mol/MV= 0.021÷0.5 = 0.042 LVolume in Ml = 0.042×1000Ans= 42mL
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You are to make 10.0 L of 1.20 M Potassium nitrate solution. What molarity would the potassium nitrate solution need to be if you were to use only 2.50 L of it?
Molarity needed for Potassium Nitrate Solution ;=4.8M
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When potassium metal is added to water, it react violently, but when potassium react with methanol, it forms bubbles. Why is this happening? why is potassium more reactive in water than in methanol
The molten metal spreads over the water and exposes a larger surface to water. Also, the hydrated radius of lithium is the greatest out of all alkali metals. This reduces...
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Sulphuric acid reacts with potassium to form potassium sulphate and hydrogen. Determine the mass of potassium sulphate produced if 6.0g of hydrogen wa also formed
2K + H2SO4 = K2SO4 + H2 if m(H2) = 6 g, so n(H2) = 6 g / 2 g/mol = 3 moles; n(H2) : n(K2SO4) = 1 : 1;...
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How many moles of aluminum nitrate are obtained from the reaction of 0.75 mol of silver nitrate with a sufficient amount of aluminum?
Solution:Balanced chemical equation:Al + 3AgNO3 → Al(NO3)3 + 3AgAccording to the equation above: n[AgNO3] / 3 = n[Al(NO3)3]Hence,Moles of Al(NO3)3 = Moles of AgNO3 / 3 = 0.75 mol /...
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Are Group 3A elements more reactive than 4A?
Is Fe Zn Cu more reactive
How can you tell by looking at the periodic table?
There are two main characteristics determining the chemical reactivity: ionization energy for metals and electronegativity for non-metals. Ionization energy is increasing from left to right in a period and decreasing...
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A 0.4230 g sample of impure sodium nitrate was heated, converting all the sodium nitrate to .1235 g of sodium nitrate and oxygen gas. Determine the percent of sodium nitrate in the original sample.
Answer:2HNO3 = 2HNO2 + O2m= 85 x 0.1235 / 69= 0.1521W%= 0.1521 / 0.4230 = 36%
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If you have 100g of Potassium nitrate, KNO3, how many moles of potassium do you have?
100/101=0.99 mol
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The density of aluminum is 2.70 g/mL. If you use 108 g of aluminum foil in an experiment, what is the volume of the aluminum in milliliters?
p=m/V.V=m/p = 108/2.7 = 40 mL.
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Compare GDP deflator with CPI. Which of the two is a better measure of determining price fluctuations in your opinion?
The GDP deflator measures the prices of all goods and services produced, whereas the CPI measures the prices of only the goods and services bought by consumers. The GDP deflator gives a different...
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