3 years ago

A pressure of 725 mmhg is equal to how many atms

Chemistry

1 answer:

STatiana [176]3 years ago

3 0

0.953948 is what I got from dividing pressure value by 760.

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Answer: Velocity

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2 years ago

Which ion in the ground state has the same electron configuration as an atom of

Sergeu [11.5K]

Answer:

Ca^+2

Explanation:

Hence, the correct option is A.

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2 years ago

A metal, M, forms an oxide having the formula MO2 containing 59.93% metal by mass. Determine the atomic weight in g/mole of the

Damm [24]

Answer:

See solution.

Explanation:

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In this case, according to the given information, it turns out possible for us to set up the formula for the calculation of the by-mass percentage of the metal:

$\% M=\frac{m_M}{m_M+2*m_O}*100 \%\\\\59.93\% =\frac{m_M}{m_M+32.00}*100 \%$

Thus, we solve for the molar mass of the metal to obtain:

$59.93\% (m_M+32.00) =m_M*100 \%\\\\m_M*59.93\% +1917.76\% =m_M*100 \%\\\\m_M=47.86g/mol$

For the subsequent problems, we proceed as follows:

$4.00gO_2*\frac{1molO_2}{32.00gO_2}=0.125molO_2$

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$0.235gNH_3*\frac{1molNH_3}{17.03gNH_3} *\frac{3molH}{1molNH_3}*\frac{6.022x10^{23}atomsH}{1molH}=2.49x10^{22}atomsH$

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2 years ago

Please Answer ASAP !

amid [387]

Answer:

2.0x 10-2M

Explanation:

x2/[2.0x10-2]2 [1.0x10-2] =100

5 0

2 years ago

How is volume calculated given mass and density

Ymorist [56]

Answer:

volume is equal to the mass divided by the density (V = M/d).

4 0

2 years ago

Read 2 more answers