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A sample of clay was partially dried. It...

A sample of clay was partially dried. It then contained `50%` slica and `7%` water. The original clay contained `12%` water find the percentage of silica in the original sample

Text Solution

Verified by Experts

On drying the weight of water changes bu the ratio of silica with other materials remains constant. If x is the `%` of silica in the original sample, `(88-x)` is the weight of the materials other than water and silica.
`therefore(x)/(88-x)=(50)/(43)impliesx47.3`
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Knowledge Check

  • A partially dried clay mineral contaisn 8% water. The original the partially contained 12% water and 45% silica. The % of silica in the partially dried sample is nearly:

    A
    0.5
    B
    0.49
    C
    0.55
    D
    0.47

  • A partially dried clay mineral contains 8% d water. The original sample contained 12% water and 45% sillica. The % if sillica in the partially dried sample is nearly:

    A
    `50%`
    B
    `49%`
    C
    `55%`
    D
    `47%`

  • A sample of clay contains 50% silica and 10% water. The sample is partially dried by which it loses 8 gm of water. If the percentage of silica in the partially dried clay is 52, what is the percentage of water is the partially dried clay?

    A
    `2.0%`
    B
    `6.4%`
    C
    `10.4%`
    D
    `2.4%`
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