In: Chemistry

Determine the molecular formula for the unknown if the molecular mass is 60.0 amu and the empirical formula is CH2O .

When you have the empirical formula, the molar mass is the molecular formula will be a whole number multiple of the molar mass of the empirical formula.

For your empirical formula, the molar mass is 12+2(1)+16= 30 amu.

Given a molecular mass of 60, your molecular formula will be 60/30=2 times your empirical formula: C_{2}H_{4}O_{2}

Determine the values of m and n when the following mass of the Earth is written in scientific notation: 5,970,000,000,000,000,000,000,000 kg.

A system consisting of two objects has a total momentum of (16 kgm/sec)i and its centre of mass has the velocity of (2 m/s)i.One of the object has the mass 5 kg and velocity (1.6 m/s)i. The mass and velocity of the other objects?

A metre stick is balanced on a knife-edge at its centre. When two coins, each of mass 5 g are put one on top of the other at the 12.0 cm mark, the stick is found to be balanced at 45.0 cm. What is the mass of the metre stick?

A well-known consignor consigned goods costing $1,560,000 to be sold at a total advertised selling price of $3,120,000. The consignee remitted $1,422,600 to its consignor after deducting the following charges: $52,500 cartage, $22,500 installation, and a commission equal to 20% of the sales proceeds after deducting the commission. Determine the net income of the consignor.

Two identical rods each of mass (m) and length (L) are connected . Locate the centre of mass of the system.

Must be in a paragraph form. Explain clearly. Must site examples also.

Rundle Air is a large airline company that pays a customer relations representative $17,100 per month. The representative, who processed 1,190 customer complaints in January and 1,450 complaints in February, is expected to process 22,800 customer complaints during the year.Required
Determine the total cost of processing customer complaints in January and in February.

Use equations 7 and 8 to determine the angle θ (in degrees) if the two positions of the first order spectral line are 35.0 cm and 65.0 cm. Assume the distance from the diffraction grating to the slit is 55 cm.Equation 7: s= .5 (xr-xl)
Equation 8: tan? = s/L

The block of mass \(\mathrm{M}\) in the following figure slides on a frictionless surface. (Figure 1)
Find an expression for the tension in the string.
Express your answer in terms of the variables \({m},{M}\), and appropriate constants.

Determine whether the distribution is a discrete probability distribution. If not, state why.
x
P(x)
0
0.1
1
0.5
2
0.05
3
0.25
4
0.1