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A cube of titanium metal contains $3.10xx10^23*"titanium atoms"$. What is the edge length of the cube if $rho_"titanium"=4.5*g*cm^3$?
And since $N_A=6.022xx10^23*mol^-1$, we take the quotient..... $"Mass of Ti"=(3.10xx10^23*"Ti atoms")/(6.022xx10^23*"Ti atoms"*mol^-1)xx47.87*g*mol^-1=24.64*g..........$ And we know that $rho,$ $"density"="Mass"/"Volume"$ But the volume of a cube is $r^3$, where $r$ is the...
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A magnesium atom reacts to produce a magnesium ion. Which diagram shows a magnesium ion?
a magnesium atom reacts to form magnesium ion losing 2 electrons and thus has a +2 charge and 10 electrons .
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Do ionic bonds occur between metal and non-metal ions, non-metal and non-metal ions, or metal and metal ions?
Ionic bonds occur between anions and cations. And cations may be metallic, i.e., $M^(2+)$, or they may be non-metallic, i.e. ammonium salts, $NH_4^+$. And anions, while typically non-metallic, i.e. $X^-$...
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What is the chemical equation for the following reaction: Solid titanium (V) oxide reacts with liquid water to produce titanium (V) hydroxide?
$"Titanic oxide"$ is $TiO_2$; vast quantities of this material are used by the paints and pigments industry to produce the white paint, that $"is whiter than white."$ $Ti(+IV)$ is the...
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How would you write an unbalanced equation for solid magnesium metal reacts with liquid water to form solid magnesium hydroxide and hydrogen gas?
$Mg(s) + 2H_2O(l) rarr Mg(OH)_2(aq) + H_2(g)uarr$ Generally, the formation of an hydroxide gel around the metal surface passivates the metal.
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When heated in a crucible, magnesium metal reacts with oxygen from the air to form magnesium oxide in a synthesis reaction. How do you expect the mass ofthe crucible and its contents to change after the reaction?
We can represent the oxidation so.......... $Mg(s) +1/2O_2(g) stackrel(Delta)rarrMgO(s)$ And thus combustion of one equiv magnesium metal, $24.3*g$, should lead to formation of approx. $40*g$ magnesium oxide. And thus the...
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There are two compounds of titanium and chlorine. One compound contains 31.04% titanium by mass, and the other contains 74.76% chlorine by mass. What are the ratios of titanium and chlorine atoms in the two compounds?
The idea here is that you need to use the of the two in the two to find their . Once you have their , you also have the ratio...
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If a 2.60g sample of titanium metal chemically combines with chlorine gas to form 10.31g of a titanium chloride, what is the empirical formula product?
The idea here is that the difference between the mass of the titanium chloride and the mass of titanium metal will represent the mass of chlorine. This means that...
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Zinc oxide reacts with hydrochloric acid to produce zinc chloride and dihydrogen monoxide. If 3.6 moles of zinc oxide reacts with an excess of hydrochloric acid, then how many grams of zinc chloride were produced?
The reaction happening in solution is the following: $ZnO(aq)+2HCl(aq)->ZnCl_2(aq)+H_2O(l)$ Since the hydrochloric acid ($HCl$) is in excess, therefore, the number of moles of Zinc oxide ($ZnO$) will determine the mass...
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If $80*g$ of magnesium chloride salt were isolated from the treatment of magnesium metal by excess hydrochloric acid, how much metal was present?
$Mg(s) + 2HCl(aq) rarr MgCl_2(aq) + H_2(g)uarr$ If there are $80*g$ salt produced, this represents a molar quantity of $(80*g)/(95.21*g*mol^-1)=0.840*mol$. And thus there MUST have been an $0.840*mol$ quantity of...
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