Explanation: #M_ (CO_2) = "220 mg"# #MW_ (CO_2) = "44.01 g/mol"# #"O"_2 " molecules = ?"#

Then, we can just find the mass of 2.272 carbon atoms by multiplying 2.272 by the mass of 1 mole of carbon: 2.272 xx 12.01 = "27.29g" Since there was 1 significant figure in the question, …

How many #"g"# of water are required to be mixed with #"11.75 g"# of #HgCl# in order to make a #"0.01 m"# solution? How would you prepare 250. mL of a 0.175 M solution of Cobalt (II) …

For part (b) s = 1.2 * 10^(-4)"M" I'll show you how to find the molar solubility of silver carboinate, "Ag"_2"CO"_3. Silver carbonate is considered insoluble in aqueous solution, which means that …

Jan 18, 2017 · LHS= (1-cos2x +sin2x)/ (1+cos2x +sin2x) using formula 1-cos2x=2sin^2x and 1+cos2x=2cos^2x = (2sin^2x +2sinxcosx)/ (2cos^2x +2sinxcosx) = (2sinx (sinx +cosx))/ (2cosx ...

Explanation: There are other beneficial endothermic processes, such as nearly any cooking or baking. Photosynthesis of plants is also an endothermic process that enables plants to store …

Jul 20, 2017 · Now, notice that the oxidation state of nitrogen goes from #color (blue) (+5)# on the reactants' side to #color (blue) (-3)# on the products' side, which basically means that every …

Mar 30, 2017 · Because the ideal gas law deals with the number of moles instead of grams, we have to first convert grams of water vapor to moles of water vapor using the molar mass of …

Curved. Observed from a great enough distance, there's ultimately no such thing as a straight line or a flat plane. Space is nothing if not a great distance.

Explanation: #cos 2t = - sqrt2/2# Trig table and unit circle give 2 solutions: #2t = +- (3pi)/4 + 2kpi# #t = +- (3pi)/8 + kpi# The arc # (-3pi)/8# is co-terminal to ...